The appropriate test procedure is c) z-test of the proportion.
What is the suitable test for determining changes in the rate of incorrectly priced items?To determine if the rate of incorrectly priced items has changed, we need to compare the observed proportion (20/1,034) to the expected proportion (1%).
Since we are dealing with proportions, the appropriate test procedure is the z-test of the proportion.
This test allows us to assess whether the observed proportion significantly differs from the expected proportion, indicating a change in the rate of incorrectly priced items.
To conduct the z-test of the proportion, we follow these steps:
The null hypothesis assumes that the rate of incorrectly priced items has not changed, while the alternative hypothesis suggests that there is a change in the rate.The test statistic is computed using the formula z = (p - P) / sqrt(P*(1-P) / n), where p is the observed proportion, P is the expected proportion, and n is the sample size.The critical value is obtained from the standard normal distribution based on the desired significance level (typically 0.05 or 0.01).It represents the threshold beyond which we reject the null hypothesis.
If the test statistic falls within the critical region, we reject the null hypothesis and conclude that the rate of incorrectly priced items has changed.If the test statistic does not fall within the critical region, we fail to reject the null hypothesis.
In this case, by calculating the test statistic (z-score) using the given values, and comparing it to the critical value from the standard normal distribution table,
We can determine whether the rate of incorrectly priced items has changed significantly.
Learn more about z-test.
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Chris loves the series Friends. He started watching it over winter break and then started binging after school. He watched 9 episodes per week. After 4 weeks he had seen a total of 45 episodes. How many episodes did he watch over winter break? Prove it using point-slope form.
Answer: He watched 9 episodes over winter break.
Step-by-step explanation:
Given: Total episodes watched = 45
After school started , he watched 9 episodes per week.
So in 4 weeks. he watched = 9 x 4 = 36 episodes.
Number of episodes he watched over winter break = 45-36
i.e. Number of episodes he watched over winter break = 9
Hence, he watched 9 episodes over winter break.
Determine whether each given pair of endpoints lies on the same horizontal or vertical line.
If so, find the length of the line segment that joins the pair of points.
If not, explain how you know the points are not on the same horizontal or vertical line.
(0,−2) and (0, 9). Do not include units in your answer.
Answer:
They end up on the same vertical line. The length between them is 11 units if your looking on a graph.
Step-by-step explanation:
You can also answer this without a graph by looking at the x and y units for each pair. Since both points both have x as 0 you can know they will be on the same vertical line which for this question is zero. Then to find the length between each point just count up from -2. -2, -1, 0, 1 etc. That's the easiest way for my brain to comprehend it at least.
How do I solve? Or what is the answer for this?
Notice that the square root is accompanied with ^2 and can be simplified:
This works because 4x^4 = (2x^2)^2
[tex]\sqrt{(2x^{2})^{2} * (256y^{8})^{2} }[/tex]
Remove the square root:
[tex]2x^{2} (256y^{8} )[/tex]
Calculate the product:
[tex]512x^{2} y^{8}[/tex]
This is your answer after simplification.
Just want answers pls/brainliest if correct !
Answer:
If AB is 16, then AD is 8.
If AB = 12 and CB = 10, then the height of the triangle is 8.
Step-by-step explanation:
AD = [tex]\frac{AB}{2}[/tex], so AD is equal to 8.
Use the Pythagorean Theorem, [tex]\sqrt{10^{2} - 6^{2}}[/tex] equals 8, so the height of the triangle is equal to 8.
−5⋅16 will result in a
number. Is it positive or negative
Answer:
negative
Step-by-step explanation:
-5x16=-80
Answer:
negitive
Step-by-step explanation:
a negitave multiplied by a positive is still a negitive
:) lol
lollololol
:):):):):):):)
Answer:
32 m^2
Step-by-step explanation:
First find the volume of the bottom section
V = l * w*h
V = 6 * 2 * 2 = 24 m^2
Then find the volume of the top section in green
The length is 6-4 =2, the height is 4-2, width is 2
V = = l*w*h = 2*2*2 = 8
Ad the volumes together
V = 24+8 = 32 m^2
Answer:
thanks for the points back
Step-by-step explanation:
[tex]\frac{1}{4} ^{0}[/tex]
how do I solve this equation?
Answer:
The solution is 1.
Step-by-step explanation:
Any number raised to the 0th power will always be 1.
3. Rohan spends * x daily and saves y per day. What is his income after 3 weeks
Answer:
21(x + y)
Step-by-step explanation:
Answer:
50 is an American American and is a well Sex book that is a a good way of solving a case of a circle with a diameter of 3m in and out of out the way of solving a problem with of the eye eye eye eye drops we
i cant figure the answer out can u help me (x+6)(3x-8)
Answer:
3x² + 10x - 48
Step-by-step explanation:
Given
(x + 6)(3x - 8)
Each term in the second factor is multiplied by each term in the first factor, that is
x(3x - 8) + 6(3x - 8) ← distribute both parenthesis
= 3x² - 8x + 18x - 48 ← collect like terms
= 3x² + 10x - 48
Given the slope and one point on the line:
m = -2
(7,-3)
Write the linear equation in standard form:
Answer:
y= -2x + 11
Step-by-step explanation:
standard form for lines is y=mx+b
m is the slope and b is the y intercept
we already know that m is -2, so we just need to figure out the intercept.
the point given is (7,-3)
points are written as (x,y) so we can plug it into the equation with 7 for the x and -3 for y
-3 = -2 (7) + b
-3 = -14 + b
11 = b
so the equation is y=-2x+11
Please help with these 2 questions for 15 points I think
Answer:
$13.50
$750
Step-by-step explanation:
#1: Which of the following represent an arithmetic sequence?
3, 7, 11, 15, 19, ...
3, 6, 12, 24, 48, ...
-10,-8, -6, -4,-2,0, 2, 4, ...
-1, 5, 11, 17, 23, 29, ...
1, 4, 9, 16, 25, 36, ...
1, 1, 2, 3, 5, 8, 13, 21, ...
1,5, 25, 125, ...
13, 33, 53, 73, 93,
Answer:
3, 7, 11, 15, 19 is an arithmetic sequence
Step-by-step explanation:
they go up by 4
Find the volume of a right circular cone that has a height of 18 m and a base with a
radius of 5.8 m. Round your answer to the nearest tenth of a cubic meter.
Answer:
V=634.0 cubic meter.
Step-by-step explanation:
By formula V=πr^2(h/3)
so V=π5.8^2(18/3)
then 5.8square2 =33.64 ,18/3=6 and pi
multiply everything you'll get V=634.0990612
finally it says round to the nearest tenth which mean , V=634.0 cubic meter.
Answer:
634.1
Step-by-step explanation:
what is the diagonal of a solid square. the sides are 7. please help
Answer:
9.89949 units
Step-by-step explanation:
the diagonal of a 7 by 7 square is the same as the hypotenuse of a 7 by 7 triangle. using the pythagorean theorem, you can conclude that
7²+7²=c²
49+49=c²
98=c²
√98=c
c≈9.89949 units
There are 120 counters in a bag.
40% of the counters are red.
3/8 of the counters are yellow.
The rest of the counters are green.
Find what fraction of the counters are green.
Answer:
9/40
Step-by-step explanation:
120 × ⅖ = 48
120 × ⅜ = 45
120 - 93 = 27
27/120 = 9/40
Based on the proportions and the counters in the bag, the fraction that is green is 9 / 40.
Number of Green countersYou can find the number of green counters by:
= Number of counters - Red counters - Yellow counters
= 120 - (120 x 40%) - (120 x 3/8)
= 120 - 48 - 45
= 27 green counters
Fraction of green counters= Number of green counters / Total number of counters
= 27 / 120
To take it to the lowest term, divide both numbers by 3:
= 9 / 40
In conclusion, the fraction is 9 / 40.
Find out more about fractions at https://brainly.com/question/17743912.
Place an X in the table to show the percent decrease from the first number to the second number 12% 15% 150 to 132 275 to 242 300 to 255
Answer:
hi
Step-by-step explanation:
hi
I need help with my last 2 problems
Answer:
19)2862 is how old the grecian pottery thing is
20)1260 calories in the whole bread
Step-by-step explanation:
954x3=2862
210x6=1260
can i get brainliest plzzzz
-4.368 - 3.86 And also 16.37 + (-29.786)
Answer:
-8.228 and -13.416
Step-by-step explanation:
math
3 times the sum of a number and 8
Answer:
uh 3x+24 only if the the number is x if it is definite just plug it in to the equation
Step-by-step explanation:
What is this number in standard form?
(5×1,000)+(9×1)+(2×1/10)+(6×1/1,000)
Enter your answer in the box. please ! 10 points help me !
it has to be a decimal please thanx so much
Answer: y=5(x+15)2−26 5
5(4x - 1.5x) + 12 = 4x - 2
Answer:
-1.647058824
Step-by-step explanation:
search on googl
Answer:
x=0.6072
Step-by-step explanation:
open bracket
20x-7.5x-4x+12=4x-2
20x-7.5x-4x=-12-2
8.5x=-14
x=0.6072
what is the answer yx3=15?
Answer:
5
Step-by-step explanation:
The table below shows the monthly balances a person had on their credit card over a five-month period.
Month Balance
January -$50
February $25
March -$70
April -$45
May $25
What was the average monthly balance over the five-month period? Enter your answers and your explanations or work in the space provided.
Answer:
average monthly balance = $43
Step-by-step explanation:
If we have a set of N numbers:
{x₁, x₂, x₃, ..., xₙ}
The mean (or average) is calculated as:
Mean = (x₁ + x₂ + ... + xₙ)/N
In this case, the values on the set are the balances for every month.
Then our set is:
{$50, $25, $70, $45, $25}
This is a set of 5 elements.
Then the average monthly balance is:
average monthly balance = ($50 + $25 + $70 + $45 + $25)/5 = $43
average monthly balance = $43
what is the solution to the inequality -x/10>-11
Answer:
x<110
Step-by-step explanation:
-x/10>-11
-x>-11*10
-x>-110
x>110
x<110
Answer:
x > - 110
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the greater than a sign from both sides of the inequality :
x / 10 - ( -11 ) > 0
x
Simplify ——
10
x
—— - -11 > 0
10
Subtracting a whole from a fraction
Rewrite the whole as a fraction using 10 as the denominator :
-11 -11 • 10
-11 = ——— = ————————
1 10
Equivalent fraction: The fraction thus generated looks different but has the same value as the whole
Common denominator: The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
x - (-11 • 10) x + 110
——————— = ———————
10 10
x + 110
——————— > 0
10
Multiply both sides by 10
Subtract 110 from both sides
x > -110
Inequality plot for
0.100 x + 11.000 > 0
x > -110
20 points!! will mark Brainliest if correct!!
plz help I need this done today!!
Answer:
1. [tex]15m^7n^2[/tex]
2. [tex]-20m^3n^4[/tex]
3. [tex]10m^8n^3[/tex]
Full expression: [tex]15m^7n^2 - 20m^3n^4 + 10m^8n^3[/tex]
Investiga y escribe el nombre de los siguientes patrimonios culturales de la humanidad
porfa ayudaaaaaaaaaa
doy corona
Answer:
monumentos arquitectónicos, sitios arqueológicos, tradiciones, expresiones artísticas
WILL GIVE BRAINLIEST IF CORRECT!
This number line models the division problem 1/6÷4 .
What is the quotient?
Enter your answer as a fraction in simplest form by filling in the boxes.
Answer:
1/24
Step-by-step explanation:
1/6 / 4
1/6 x 1/4
1/24
The radius of a circle is 14.2 ft. Find the circumference
to the nearest tenth.
Answer:
89.22123136
Step-by-step explanation:
Answer:
The answer is 89.2 :)
Step-by-step explanation:
To make some extra money over the summer, Kelsey and Olivia got jobs mowing the 5 acres of grass at the local park. Each week, the girls worked together to mow all the grass, splitting it equally. How many acres did each girl mow each week?
Answer:
Area covered by each girl = 2.5 acre
Step-by-step explanation:
Given:
Number of girls = 2
Total area = 5 acre
Find:
How much area covered by each girl
Computation:
Area covered by each girl = Total area / Number of girls
Area covered by each girl = 5 / 2
Area covered by each girl = 2.5 acre
A sweatshirt manufacturer includes a shipping charge of $5.99 on all online orders. Customers also pay 2.5% tax on all their purchases. There is a linear equation between c, the cost of of the items purchased, and t, the total cost of including shipping and tax. Which statement is true about the function that represents the relationship between c and t. Brainly
Answer:
t = 1.025c + 5.99
Step-by-step explanation:
The shipping charge, = $5.99
Tax paid on purchases = 2.5%
Cost of item, c
Total cost, t, including shipping and tax
Total cost = Cost of item + tax on purchase +. Shipping fee
Tax on purchase : 2.5% * cost of item
Tax on purchase : 0.025c
Shipping = $5.99
General formula for a linear equation :
y = mx + c
Hence, for the cost model:
Total cost = Cost of item + tax on purchase +. Shipping fee
t = c + 0.025c + 5.99
t = 1.025c + 5.99