The Centers for Disease Control and Prevention define a person with Body Mass In
ID: 3178632 • Letter: T
Question
The Centers for Disease Control and Prevention define a person with Body Mass Index (BMI) in the range 25.0 - 29.9 as overweight and one with BMI of 30.0 or above as obese. A person with BMI of 18.4 or below is underweight; the normal range is 18.5 - 24.5.
In "Comparative Sex-Specific Body Mass Index in the Marvel Universe and the 'Real' World" (web publication), Healy and Johnson took a sample of 36 (ficticious) men from the Marvel Comics website marvel.com and found that their mean BMI is 25.5. Suppose, using their data we wish to establish, that Marvel men are, on the average, overweight or obese.
Which hypothesis is used to establish the claim?
A. H0:=25,H1:>25
B. H0:>25,H1:=25
C. H0:=25,H1:<25
D. H0:=25,H1:25
In this problem represents
A. The mean BMI index of the population of all Marvel men
B. A hypothetical value 0
C. The sample mean BMI index of a sample of Marvel men
D. none of the above
In this problem is
A. A population parameter
B. Neither a population parameter nor a sample statistic
C. Both a population parameter and a sample statistic
D. A sample statistic
In this problem the numerical value of is
A. 25.0
B. 25.5
C. 24.9
D. unknown
In this problem 25.5 is the numerical value of
A. A hypothetical value 0
B. The mean BMI index of the population of all Marvel men
C. The sample mean BMI index of a sample of Marvel men
D. none of the above
In this problem 25.5 is the numerical value of
A. A sample statistic
B. A population parameter
C. Both a population parameter and a sample statistic
D. Neither a population parameter nor a sample statistic
In this problem 25 is the numerical value of
A. A hypothetical value 0
B. The mean BMI index of the population of all Marvel men
C. The sample mean BMI index of a sample of Marvel men
D. none of the above
In this problem 25 is the numerical value of
A. Neither a population parameter nor a sample statistic
B. Both a population parameter and a sample statistic
C. A sample statistic
D. A population parameter
In this problem, the test statistic has the form z=(x0)/(/n). Here x is
A. Neither a population parameter nor a sample statistic
B. A population parameter
C. Both a population parameter and a sample statistic
D. A sample statistic
The test needed for this problem cannot be done because
A. A value of x has not been given
B. The standard deviation has not been given
C. A value of has not been given
D. A value of 0 has not been given
Explanation / Answer
1. Here he wants to check that Marvel men are overweight or obese
So H0: mu=25 vs H1: mu>25 as range of overweight is 25-29.9 and for obese it is 30 or above, A is answer
2. Its value for which hypothesis is checked so its Hypothetical value mu0, b is answer
3. Here mu is to be tested for sample statistics so its A. A population parameter
4. As per hypothesis we can see its 25.