The two columns below give fertility of eggs of the CP strain of Drosophila melanogaster raised in 100 vials of 10 eggs each (data from R.R. Sokal). Find the expected frequencies, assuming that the mortality for each egg in a vial is independent. Use the observed mean. Calculate the expected variance and compare it with the observed variance. Interpret the results, knowing that the eggs of each vial are siblings and that the different vials contain descendant from different parent pairs. Answer: o2 = 2.417; s2 = 6.628.
Number of Eggs Hatched Number of Vials f Expected Frequency of vials
0 1
1 3
2 8
3 10
4 6
5 15
6 14
7 12
8 13
9 9
10 9

Answers

Answer 1

Solution :

Given the number of the edges are = 11

Therefore we take [tex]$\frac{1}{11}=0.091$[/tex]

And the number of the vials total is = 100

Thus we can multiply = [tex]$100 \times 0.091 = 9.1$[/tex]

From the table provided below, we can obtained :

1. Null hypothesis and alternate hypothesis :

The following null and alternate hypothesis needs to be tested :

[tex]$H_0:p_1=0.091, \ p_2 = 0.091, p_3=0.091, \p_4=0.091, \p_5=0.091, \p_6=0.091, \p_7=0.091,$[/tex] [tex]$p_8=0.091, \ p_9=0.091, \ p_{10}=0.091, \ p_{11}=0.091 $[/tex]

[tex]$H_a :$[/tex] some of the population differ from the values stated in the null hypothesis. It corresponds the Chi-square test that is for the Goodness of the Fit.

2. Rejection region :

It is given --

significance level, α = 0.05

number of degrees of freedom, df = 11 - 1

                                                         = 10

Then the rejection region of this test is :

[tex]$R=\{ x^2:x^2 >18.307\}$[/tex]

3. Test statistics

The Chi-Squared statistics is computed as :

[tex]$x^2=\sum_{i=1}^n \frac{(O_i-E_i)^2}{E_i}$[/tex]

    [tex]$=7.21+4.089+0.133+0.089+1.056+3.825+2.638+0.924+1.671+0.001+0.001$[/tex]

    = 21.638

4. Decision about null hypothesis

Since we see that :    [tex]$x^2=21.638>x^2_c = 18.307$[/tex], we can concluded that we can reject the null hypothesis.

5. Conclusion :

It is concluded that the null hypothesis [tex]$H_0$[/tex] is rejected. So there is enough evidence for us to claim that the population proportions differ from that stated in null hypothesis at α = 0.05 significance level.


Related Questions

The sum or two numbers is 59. the larger number is 15 more than the smaller number. What are the numbers

Answers

Answer: 37 and 22

Step-by-step explanation:

x + y = 59

x = 15 + y (substitute x as 15 + y into the first equation)

15 + y + y = 59

2y + 15 = 59

2y = 44

y = 22

substitute y as 22 into one of the equations

x = 15 + 22

x = 37

Find three consecutive numbers whose sum equals
999.​

Answers

Answer:

332, 333, 334

Step-by-step explanation:

First, we acknowledge that the equation that we need to solve will be "x+(x+1)+(x+2)=999" This is because x represents the smallest of three consecutive numbers whose sum is 999. Simplifying this equation will leave us with 3x+3=999 which is simplified further to 3x=996 and again simplified to x=332. X is the smallest number of the three.

If 1=3. 2=3. 3=5. 4=4. 5=4. Then, 6=?

Answers

Question: If 1=3. 2=3. 3=5. 4=4. 5=4. Then, 6=?

Answer: Like wise, If 1=3.2=3 3=5 4=4 5=4 Than 6=3

Because of six. Six split in two is 3 therefore 6=3

More:  7=5, 8=5, 9=4, 10=3

Hope this helps~~~

What relationship between the quantities is shown in the table?
The relationship between quantities is +10.
The relationship between quantities is ×11.
The relationship between quantities is – 30.
The relationship between quantities is + 20.

Answers

Answer:

x11

Step-by-step explanation:

mega brain IQ

The relationship between the quantities x and y is option B. The relationship between quantities is ×11.

What is Direct Variation?

Direct variations are defined as the functions of the form y = kx, where k is a constant.

Here when y increases, x increases and if y decreases, x also decreases.

Given values of x are 1, 2, 3 and 4.

Given values of y are 11, 22, 33 and 44.

We have to find the relationship between x and y.

Let y = f(x).

f(1) = 11, f(2) = 22, f(3) = 33 and f(4) = 44

Clearly we can see that,

f(x) = 11x, which is a direct variation.

When x = 1, f(1) = 1 × 11 = 11

When x = 2, f(2) = 2 × 11 = 22

When x = 3, f(3) = 3 × 11 = 33

When x = 4, f(4) = 4 × 11 = 44

So the relationship is y = x × 11

Hence the relationship between quantities is ×11.

Learn more about Direct Relationships here :

https://brainly.com/question/28628342

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Your question is incomplete. The complete question is as given below.

Use the table to find the relationship between the two quantities. A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 2, 3, 4. Column 2 is labeled y with entries 11, 22, 33, 44. What relationship between the quantities is shown in the table?

The relationship between quantities is +10.

The relationship between quantities is ×11.

The relationship between quantities is –30.

The relationship between quantities is +20.

Which quadrilateral can have 2 pairs of parallel sides, all sides
with equal length, and no right angles?
A square

A triangle

A Rhombus

Trapezoic

Answers

Parallelogram is the word that most generally describes such a figure. A square or rectangle, which do, of course have right angles, are special cases of the parallelogram.

I am assuming (perhaps unjustifiably) that when you say “two pairs of parallel sides” you are talking of a figure with no other sides than those four.
There are, of course, many other polygons (hexagons, octagons, decagons, etc) which have two pairs of parallel sides and other sides, any two of which may or may not be parallel.

The attached figure is a parallelogram with one corner chopped off, making it a pentagon. It still has two pairs of parallel sides & no right angles.

Which translation transformed the parent function, f(x),
to g(x))?
a translation right 2 units
a translation left 2 units
a translation up 2 units
a translation down 2 units

Answers

Answer:

A. a translation right 2 units

Step-by-step explanation:

JUST DID IT.

Silvia was growing some plants. She measured the height, in inches, of the plants and made thisline plot to show her data:

( please help will give brainliest if you do and do trolling or I’ll report you)

Answers

Answer:

The answer is C.

Step-by-step explanation:

The equivalents to 1/4 are 2/8, 3/12, 4/16 etc. So the fractions after 1/4 are higher than 1/4. Then you count how many 'x's are in the columns for those measurements and you will get 6.

At a sale this week, a suit is being sold for $217. This is a 38% discount from the original price. What is the original price?

Answers

Answer:

List price (original price) = $350

Discount amount ($ saved) = $133

Step-by-step explanation:

The list price is the sale price ($217) divided by the difference of 1 minus the result of the discount (38%) divided by 100.

The distance around a tree trunk is 69.08 inches. What is the radius of the tree?

Answers

Answer:

10.99

Step-by-step explanation:

cuz it is -_-

16 and 3/5 - 4 and 4/5 equals

Answers

The answer is 11 4/5

Answer:

59/5

Step-by-step explanation:

16 and 3/5 = 83/5

4 and 4/5 = 24/5

83/5 - 24/5 = 59/5

what is 2 - 1/8
???????????????????????

Answers

Answer:

1 7/8

Step-by-step explanation:

2 - 1/8 = 1 7 /8

1 7/8 + 1/8 = 2

An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $1800 and his stock in Company B was worth $1930. The stock in Company A has decreased 16% since last year and the stock in Company B has decreased 20%. What was the total percentage decrease in the investor's stock account? Round your answer to the nearest tenth (if necessary).

Answers

Answer:

Mar 8, 2020 · 2 answers

Last year, his stock in Company A was worth $7200 and his stock in Company B was worth $3510. The ...

Answer:

18.1%

Step-by-step explanation:


Which three pieces of information contribute the most to your credit score?

Answers

.....................................

Malik joins a gym. He gets $2 per month of the regular monthly rate for 3 months. Malik pays $49.50 for 3 months. What is the gym's regular monthly rate, Show your work​

Answers

Answer:

$18.50

Step-by-step explanation:

$49.50/3months=$16.50

$16.50+$2=$18.50

Malik joins a gym, then the gym's regular monthly rate will be equal to $18.50.

What is an arithmetic operation?

The four basic mathematical operations are the addition, subtraction, multiplication, and division of two or even more integers.

Among them is the examination of integers, particularly the order of actions, which is crucial for all other mathematical topics, including algebra, data organization, and geometry.

As per the given information in the question,

Price paid by Malik in three months = $49.50

Then, monthly price will be,

$49.50/3months = $16.50

Then, the gym's regular monthly rate will be,

$16.50 + $2 = $18.50

To know more about arithmetic operations:

https://brainly.com/question/13585407

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How many fourths are equal to 1/2? Please help!

Answers

2/4 is equal to 1/2. Hope this helps

1 3/8 equations that are true and different

Answers

Answer:

you got this

Step-by-step explanation:

chose what you think is right it works with me so it should work with you

1. The sum of two numbers is 64. One of the numbers is 16 more than 3 times the other. Find the
two numbers.

Answers

Answer:

The two numbers are 52 and 12.

Step-by-step explanation:

x+y=64

x=16+3y

Now, substitute the second equation into the first one.

16+3y+y=64

16+4y=64

4y=48

y=12

Substitute 12 into one of the equations in order to find x.

x=16+3(12)

x=16+36

x=52

Find the slope of the line that passes through (8,7) and (5,5)

Answers

Answer:

slope= 2/3

Step-by-step explanation:

Slope intercept formula: y2-y1/x2-x1

5-7/5-8 = -2/-3 = 2/3


Find the length of the midsegment of the trapezoid.

Answers

Answer:

29

Step-by-step explanation:

The Trapezoid Midsegment segment theorem states that the length of the midsegment is half the sum of the length of its two parallel sides. Therefore:

MN = ½(AB + DC)

MN = ½(21 + 37)

MN = ½(58)

MN = 29

What expression is equivalent to
2/3 X 5

Answers

Answer:

1/3

Step-by-step explanation:

1/3 can be used as an expression that is exactly the same as 2/3x5.

When you multiply 2/3 x 5-

Look here if you need help solving 2/3 X 5: (2/3 x 5/1...is the simplest way to multiply the two, make sure to multiply 2 by 5 and 3 by 1 to get your answer.)(5x2=10...3x1=3)

-you get 10/3. This answer simplified is 1/3. So in the end, 1/3 is a great expression or answer to use as an equivalent to the equation 2/3 x 5.

Hoped this helped! :)

The area of the parallelogram is___ cm2

Answers

Answer:

Step-by-step explanation:

Area of parallelogram=base×perpendicular height

Area of para.= 7×14

Area of para.= 98cm²

one hectameter is =how much cm?
A=100
B=10000
C=10
D=1000​

Answers

Answer:

option B is correct because

1 hectameter is equal to 10000cm

1 hectameter equals to 10,000 Centimeters. So your answer is choice B.

factor this quadratic polynomial -8x^2+8​

Answers

8 (-x+1) (x+1)


8 (-x^2+1)

(1-x) (1+x)

Rearrange into (-x+1) (x+1) and add the 8 back where it was

8 (-x+1) (x+1)

Answer:

This is my answer

Step-by-step explanation:

-8×12+8

-96+8

-88____so this is the answer I solved it properly

6.3.12
The coordinates of point T are (0,5). The midpoint of ST is (2,-2). Find the coordinates of point S.
The other endpoint is
(Type an ordered pair.)

Answers

Answer:

[tex]S = (4,-9)[/tex]

Step-by-step explanation:

Given

[tex]T = (0,5)[/tex]

[tex]Midpoint = (2,-2)[/tex]

Required

Find S

Midpoint is calculated as:

[tex]Midpoint = 0.5(x_1 + x_2,y_1+y_2)[/tex]

So, we have:

[tex](2,-2)= 0.5(0+ x_2,5+y_2)[/tex]

Where x2 and y2 are the coordinates of S

Multiply through by 2

[tex]2 * (2,-2)= 2 * 0.5(0+ x_2,5+y_2)[/tex]

[tex](4,-4)= (0+ x_2,5+y_2)[/tex]

[tex](4,-4)= (x_2,5+y_2)[/tex]

By comparison:

[tex]x_2 = 4[/tex]

[tex]5 + y_2 = -4[/tex]

[tex]y_2 = -4-5[/tex]

[tex]y_2 = -9[/tex]

So:

[tex]S = (4,-9)[/tex]

What is the value of -91/5 - 10 + 2/5+ 2(14 1/2-7)

Answers

Answer:

Exact Form:

−64/5

Decimal Form:

−12.8

Mixed Number Form:

−12 4/5

Step-by-step explanation:

bc I used a calculator

When 2 dice are rolled, find the probability of getting a sum greater than 8.

Answers

Answer: 10/36

When a pair of fair dice are rolled , the total possible cases are (6 × 6) = 36. Out of these 36 cases the following 10 cases are favors(giving the sum > 8) for the happening of the event . These 10 cases are (3, 6), (4, 5), (4, 6),(5, 4), (5, 5), (5, 6) , (6, 3), (6, 4), (6, 5), & (6, 6)

Step-by-step explanation:

6×6=36 possible outcomes and only 15 possible outcomes summing 8 or more than 8.

Since there are six possible outcomes, the probability of obtaining any side of the die is 1/6. The probability of rolling a 1 is 1/6, the probability of rolling a 2 is 1/6, and so on.

if you know that there are 60 minutes in an hour how could you find the number of hours in 300 minutes​

Answers

Answer:

300/60=5 Hours

Hope it helps

Answer:

5hours

Step-by-step explanation:

................

300÷60

Type your answer in the box.

y = 10 b = 6

Answers

Answer:

The answer is -60 (I believe)

Step-by-step explanation:

3(-10)-5(6)

-30-30 = -30+-30

-30+-30= -60

The answer is -60

Step-by-step explanation:

If y = 10 and b = 6 Then

3(-y) - 5b

= 3 *( - 10 ) - 5 * 6

= - 30 - 30

= - 60

Hope it will help :)❤

solve this system of equations by graphing . first graph the equations then type the solution .

y=1/5x-5
y=-3/5x-1

PLEASE HELP ILL GIVE 40 POINTA PLEASE DONT SKIP:(((

Answers

9514 1404 393

Answer:

  (x, y) = (5, -4)

Step-by-step explanation:

The Desmos graphing calculator is a handy tool for solving questions like this one. It tells you the solution is ...

  (x, y) = (5, -4)

whoever gets this correct gets brainliest

Answers

Answer:

More. Older

Likey

To vote

Less likely. younger

to

vote

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