The mean of the population ( )is 200 on a test that measures math skills of middle school students.The variance .The test scores for the students in Mr.Petris's class at Suburban Middle School are given below.Use a rejection region with a probability of 5% only in the upper tail.What should you conclude?

A)Since the z-value falls within the region of rejection,we should conclude this sample mean likely represents some other population.
B)Since the z-value does not fall within the region of rejection,we should not conclude this sample mean represents some other population.
C)Since the z-value falls within the region of rejection,we should not conclude this sample mean represents some other population.
D)Since the z-value does not fall within the region of rejection,we should conclude this sample mean likely represents some other population.

Question

The mean of the population (  )is 200 on a test that measures math skills of middle school students.The variance  .The test scores for the students in Mr.Petris's class at Suburban Middle School are given below.Use a rejection region with a probability of 5% only in the upper tail.What should you conclude?

A)Since the z-value falls within the region of rejection,we should conclude this sample mean likely represents some other population. 
B)Since the z-value does not fall within the region of rejection,we should not conclude this sample mean represents some other population. 
C)Since the z-value falls within the region of rejection,we should not conclude this sample mean represents some other population. 
D)Since the z-value does not fall within the region of rejection,we should conclude this sample mean likely represents some other population.

Quizplus · Accepted Answer

The Answer of The mean of the population (  )is 200 on a test that measures math skills of middle school students.The variance  .The test scores for the students in Mr.Petris's class at Suburban Middle School are given below.Use a rejection region with a probability of 5% only in the upper tail.What should you conclude?

A)Since the z-value falls within the region of rejection,we should conclude this sample mean likely represents some other population. 
B)Since the z-value does not fall within the region of rejection,we should not conclude this sample mean represents some other population. 
C)Since the z-value falls within the region of rejection,we should not conclude this sample mean represents some other population. 
D)Since the z-value does not fall within the region of rejection,we should conclude this sample mean likely represents some other population.

The Mean of the Population ( )Is 200 on a Test