Answer:
Answer.The director does not have convincing statistical evidence to conclude that the population mean commute time is greater than 30 minutes.
Because the p value is very high and higher than level of significance ,so we fail to reject null hypothesis.
You may not know this, but you are home to a colony of bacteria. You may also not know it, but the health and happiness of that colony of bacteria have a direct effect on your own health and happiness. In short, if we are what we eat, then we may need to make bacteria part of our balanced breakfast.
Microbes are single-celled organisms. They are literally everywhere. Microbes are in the air we breathe, on the surfaces of everything we touch, and inside our bodies. Microbes can be bacteria, fungi, protozoa, or viruses.
A few years ago, scientists began studying the microbial life of our stomachs. Called The American Gut project, this study aims to understand the life of the bacteria that live in our digestive system. According to an article in the New York Times by Michael Pollan, the goal is to gather information on the types and amounts of bacteria in the human gut. Scientists want to describe what a normal healthy microbe and human relationship should look like inside our digestive system. While the research is still in the very early stages, scientists have learned the following:
The strongest and healthiest microbe systems are those with a lot of variety.
The guts of Americans have much less variety than the guts of other populations.
Diets that include a lot of processed foods support less variation in bacteria.
Studying the makeup of our individual bacteria communities will help scientists get a better idea of which bacteria help human bodies. We used to think that bacteria in our bodies were invaders. This new research suggests that bacteria are part of the protective army that keeps us healthy. In fact, our bodies have a hard time recovering from medicines like antibiotics because they disrupt the balance of helpful bacteria. It seems clear from the early evidence that living with bacteria helps us resist invasion from things that make us sick.
Scientists have also learned that microbes might help our guts do things like process vitamins and important nutrients. Some microbes may help us deal with stress, or adapt to changes. Furthermore, there may come a time—in your lifetime—when illness is treated not with antibiotics, but with extra-special microbes that help us defend our bodies from illness.
Based on "A Brief Study of Guts," which best summarizes the goal of new research into bacteria and microbes?
A. To collect a wide variety of microbes in all mammals including humans
B. To find ways to increase our intake of helpful microbes
C. To find evidence to decrease the use of antibacterial soap
D. To understand how microbes populate the human body and what benefit they provide
Answer:
The Right answer is To understand how microbes populate the human body and what benefit they provide.
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
They are telling you, hey! They are helpful!
It cost Ms. Nelson $245 to buy 5 kids tickets to Disney. How much do the tickets cost per child?
Answer:
49$
Step-by-step explanation:
245/5
Which of the following is NOT a property of the sampling distribution of the variance? Choose the correct answer below. A. The expected value of the sample variance is equal to the population variance. B. The mean of the sample variances is the population variance. C. The sample variances target the value of the population variance. D. The distribution of sample variances tends to be a normal distribution.
Answer: D. The distribution of sample variances tends to be a normal distribution.
Step-by-step explanation:
The properties of the sampling distribution of the variance include:
• The expected value of the sample variance is equal to the population variance.
• The mean of the sample variances is the population variance.
• The sample variances target the value of the population variance.
Therefore, the option that isn't a property of the sampling distribution of the variance will be option D "The distribution of sample variances tends to be a normal distribution".
We should note that the sampling distribution came came in place as a result of the central limit theorem. The sample variance gives a true representation of the variance of the population as it is an unbiased estimator.
The one that does not demonstrate a property of variance's sampling distribution would be:
D). The distribution of sample variances tends to be a normal distribution.
Sampling Distribution PropertyThe variance's sampling distribution property states that:
The variance or the difference of population is equivalent to the sample variance's estimated value.The mean deduced by the sample variances is similar to the difference/variance of the population.The purpose of sample variance aims toward the value denoted by population variance.As per the question, the fourth statement does not exemplify one of its properties as the distribution displayed by sample variances is inclined towards normal distribution.
Thus, option D is the correct answer.
Learn more about "Variance" here:
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Which equation has no solution?
How do you simplify 1 17/18
Answer:
1 17/18= 1 17/18
Step-by-step explanation:
1718 is already in the simplest form. It can be written as 0.944444 in decimal form (rounded to 6 decimal places).
Find the factors of following:
(i) 8x^2yz
Answer:
(i) 8x^2yz=2×2×2×x×x×y×z
solve the following: 8x(x-5)-25=5x(x-6)
Answer:
Step-by-step explanation:
Answer:
x = -5/3; x = 5
Step-by-step explanation:
8x(x - 5) - 25 = 5x(x - 6); Given
8x^2 -40x - 25 = 5x^2 - 30x; Multiply/Simplify
3x^2 - 10x - 25 = 0; Addition Property of Equality
(3x + 5)(x - 5) = 0; Factor
x = -5/3; x = 5; Solve
Human capital deepening refers to increases in a country’s population, including both births and immigration.
True
False
Answer:
Based on what I researched that would be False.
Step-by-step explanation:
Human capital deepening is the increase of capital workers, it also includes skills or higher education.
What is the slope-intercept equation for the line below?
5
(4,3)
(0, 1)
5
O A. y=2x+1
B. y=-3x+1
O C. y=-2x+1
O D. y = 2x+1
Answer:
is there a pic you could provide?
Step-by-step explanation:
The slope-intercept equation for the line is,
⇒ y = 1/2x + 1
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
Two points on the line are (4, 3) and (0, 1).
Now,
Since, The equation of line passes through the points (4, 3) and (0, 1).
So, We need to find the slope of the line.
Hence, Slope of the line is,
m = (y₂ - y₁) / (x₂ - x₁)
m = (1 - 3) / (0 - 4)
m = - 2 / - 4
m = 1/2
Thus, The equation of line with slope 1/2 is,
⇒ y - 3 = 1/2 (x - 4)
⇒ y - 3 = 1/2x -2
⇒ y = 1/2x + 1
Therefore, The slope-intercept equation for the line is,
⇒ y = 1/2x + 1
Learn more about the equation of line visit:
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#SPJ7
Class A had 33 students and class B had 21 students. A number of students were moved from class A to class B so the classes now have the same number of students. Write the equation and solve for how many students were moved.
Answer:
i think its 12.12 kids got moved
Step-by-step explanation:
i just subtracted 33 - 21 = 12...
What is 8/9ths of 4?
8/9 ÷ 4 = 8/36 as simplified as 2/9 in fraction form.
Answer:
8/36
Step-by-step explanation:
I divided 8/9 by 4
3. Vivian has a balance of $1,075 in a savings account that pays 3.25% interest compounded annually. If Vivian makes no deposits or withdrawals, how much money will be in her saving account after 24 months?
Answer:
$1146.01
Step-by-step explanation:
The original amount is 100%. The account earns 3.25% per year, so after 1 year it is worth 100% + 3.25% = 103.25% of the original amount. Since the interest is compounded, after the second year, the account is worth 103.25% of the amount at the end of the first year.
$1,075 * 1.0325 * 1.0325 = $1146.01
calculate the variance and standard deviation for the following samples set of data. 83.6,92.3,56.5,43.8,77.1,66.7. (Do not round intermediate calculation. Round your final answers and the nearest tenth.)
Answer:
Variance: 322.4479999999996
Standard Deviation: 17.956837137981722
The figure below consists of a square and a right triangle. Find the missing length x.
down the additive inverse of 4 by 7
Answer:
[tex] \color{magenta} \huge{ \boxed{answer}}[/tex]
The additive inverse of 4/7 is -4/7.hopefully help:)
Step-by-step explanation:
#CarryOnLearningConsider each statement about finding the measurements of triangles. Choose True or False for each statement.
A. If you know the measures of the three angles of a triangle, you can find the lengths of the sides.
True or False
B. If you know the lengths of the three sides of a triangle, you can find the measures of the angles.
True or False
C. If you know the measures of the two sides of a triangle and the measure of an angle not included between the two sides, you can solve the triangle. True or False
Answer:
c
Step-by-step explanation:
Measurement of triangle
Measure of 3 angles find length is true.Lengths of 3 sides for angles is true.Measures of angles not included the two sides is false.What is the measure of the triangle?The measure of the triangle is the sum of 3 interior angles of the triangle. This is always 180 degrees, as a triangle has 3 sides and 3 angles.
The measure of the three sides of the triangle can help in finding out the angles and similarly the three angles can help to find the length. If we consider two sides and then measure the angle then the triangle can't be solved.
Find out more information about the measurements of triangles.
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I need help pls answer
Answer:
4y²+2 = ( 4y × 4y ) + 2
Step-by-step explanation:
please mark me as brainliest answer.
What is the distance, in units, between point A(5. - 8) and point B(-2, 4) on the coordinate plane?
PLSSS ANSWER ASAP
Answer:
13.892444
Step-by-step explanation:
The height difference: 12
The length difference: 7
12^2+7^2=c^2
193=c^2
13.892444=c
Answer:
[tex]\sqrt{193}[/tex]
step explanation:
What is circle definition
A home has a room with length 22 feet and width 25 ft.
Which dimensions could represent a scale model of the room?
O length = 6.5 in.; width = 7.5 in.
O length
= 11 in.; width = 12.5 in.
O length = 13 in.; width = 14 in.
O length = 17.6 in.; width = 19.5 in.
Answer:
O length = 11 inches width = 12.5 inches
Step-by-step explanation:
Is this right? Answer quick please
integral of 3x^2 is (9/3)x^3 + c
I can't see option d but none of the others look correct.
Which equation has no real solutions?
) −2x2=−168
) 4x2+ 76 = 32
) 25x2= 1
) 43 −x2= 12
Answer:
Step-by-step explanation:
4x² + 76 = 32
4x² = -44
x² = -11
but x² must be non-negative, so there is no real solution.
Plsssss help will mark brainliest
Answer:
24
Step-by-step explanation: 12 divided by 1/2 is 24
Answer:
24 pls GIVE ME BRAINLIEST not trynna be demanding but iv never had one before
Step-by-step explanation:
A rectangular park is 56 mi wide and 157 mi long.
What is the area of the park as a mixed number simplest form?
Answer:
8792mi^2
Step-by-step explanation:
basic area calculations width times length
5X=(X+1)×4
send some help
Answer:
x = 4
Step-by-step explanation:
So you multiply all in the ( x + 1) by 4 so 4 times x equals 4x and 4 times 1 is 4
5x = 4x + 4 subtract 3x because that is the only common thing on the other side you'll get
x = 4 and that's your answer
Does the table represent an exponential function? Explain why or why not.
(3,-10 ), (4,-7 ), (5,-4), (6,-1), (7,2),(8,5)
Answer:
No, it does not.
Step-by-step explanation:
It's a linear function, with a slope of -3 (down 3 for every new X as you move right)
PLEASE HELP!
Which figure has the smaller volume, the cone with a diameter of 7 in. and a height of 5 in. or the sphere with a diameter
of 5 in.?
A. Sphere
B. Cone
Answer:
(A) Sphere
Step-by-step explanation:
The sphere has a smaller volume.
Copy machine makes 44 copies per minute. How long does it take to make 231 copies?
Answer:
5.25 minutes
Step-by-step explanation:
214 out of 450 students went to a concert, what percent did not go?
Answer:
.75% .0075 of the people that went to the concert said they would go if they could not see the band again. To find this you simply divide 9 by 1200, which equals .0075
Step-by-step explanation:
Answer:
% 236 did not go
% Decimal 2.36
Step-by-step explanation:
% 450 - 214
25 + 12x (24 + 3) - 15 21.3
Answer:
324x-1496.3
Step-by-step explanation: