1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Umnica [9.8K]
3 years ago
5

A researcher claims that the average body mass index (BMI) of adult Canadians is more than 25.0. He takes a SRS of 250 Canadians

and finds x = 26.3. The p-value for this test is 0.001. What is the best interpretation of this value?
Mathematics
1 answer:
Serjik [45]3 years ago
3 0

Answer:

The probability of obtaining a result equivalent to or greater than what was the truly observed value of the test statistic is 0.001.

Step-by-step explanation:

The researcher can use a one sample <em>z</em> test to determine whether his claim is correct or not.

The hypothesis to test whether the mean BMI is more than 25.0, is defined as:

<em>H₀</em>: The mean BMI is not more than 25.0, i.e. <em>μ </em>≤ 25.0.

<em>Hₐ</em>: The mean BMI is more than 25.0, i.e. <em>μ </em>> 25.0.

The test statistic is defined as:

z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}

The <em>p</em>-value of the test is,

<em>p</em> = 0.001.

The p-value is well-defined as per the probability, [under the null-hypothesis (<em>H₀</em>)], of attaining a result equivalent to or greater than what was the truly observed value of the test statistic.

A small p-value (typically ≤ 0.05) specifies sufficient proof against the null hypothesis (<em>H₀</em>), so you discard <em>H₀</em>. A large p-value (> 0.05) specifies fragile proof against the <em>H₀</em>, so you fail to discard <em>H₀.</em>

The <em>p</em>-value of 0.001 indicates that the probability of obtaining a result equivalent to or greater than what was the truly observed value of the test statistic is 0.001.

As the <em>p</em>-value is very small, the null hypothesis will be rejected at any level of significance.

Thus, concluding that the mean BMI of adult Canadians is more than 25.0.

You might be interested in
Anyone wanna help thank you
vova2212 [387]

The First two coefficients are positive because they are on the positive side of the y-axis.

The Last two are on the negative side of the y-axis. B is the closest to zero as the wider the graph is, the lower the coefficient is.

The coefficient with the greatest value would be D

6 0
3 years ago
Xavier Designs has the logo shown below on their office door. The logo has two smaller congruent triangles that are similar to t
Alexus [3.1K]

Answer:

183.375 in2

Step-by-step explanation:

I did it on study island.

5 0
3 years ago
Derek saves 10% of his paycheck each week to buy a mountain bike the mountain bike costs 340.00 Derek receives a paycheck in the
katrin2010 [14]

Answer: 13 weeks

Step-by-step explanation:

First you have to find 10% of 340.00 which is 28, so each week he saves 28.00 for his bike. To find how many paychecks he has to recieve you divide 340.00 by 28.00, which is 12.1, since there is a decimal place you have to round it up to 13 because it is a little bit more than 12 paychecks. ;)

7 0
2 years ago
Solve the following polynomial function. y=x^4−21x^2−100
Alexxandr [17]

Answer:

y= x⁴ -21x²-100

combine x's I think

x⁴= 1x? cuz if it's 1x⁴ that's 1x*1x*1x*1x = 1x

1x * -21x²

-21x * -21x = 441x

+1x = 442x

y= 442x -100

I'm not sure if I did that right

5 0
3 years ago
Which describes how to find the solution to 5k&gt;22?
neonofarm [45]
Just google it its way easy
8 0
3 years ago
Other questions:
  • Scott is going for a run. He runs for 12.5 miles at a speed of 5 miles per hour. For how many hours does he run?
    14·2 answers
  • A circular table has a diameter of 20 inches.what is the area of the table
    5·2 answers
  • If your salary is $42,500 and your federal income taxes are 10% of your salary, how much money will you owe this year in federal
    15·2 answers
  • What is the value of x
    10·2 answers
  • <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Cdiv%20%20%5Cfrac%7B1%7D%7B4%7D%20" id="TexFormula1" title=" \
    5·2 answers
  • 800 students attend Ridgewood Junior High School. 10% of students bring their lunch to school everyday. How many students brough
    12·1 answer
  • The hypotenuse of 30-60-90 triangle is a length of 32. What will be the length of the 2 legs?
    14·1 answer
  • Of every 300 magic cakes Farah makes, 90 are chocolate, what percentage of chocolate cakes Farah makes?
    8·1 answer
  • What value or values of x satisfy 2|x + 5.3| = 4.2?
    13·1 answer
  • Which equation represents a line that passes through (4, left-parenthesis 4, StartFraction one-third EndFraction right-parenthes
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!