A fitness instructor at a large gym would like to know if the individuals that take fitness classes in the morning tend to get in a greater number of steps than individuals that take evening fitness classes. She selects a random sample of 10 individuals that take fitness classes in the morning and 10 individuals that take fitness classes in the evening. She gives each person a step-counting device to wear for one week. At the end of the week she collects the devices and calculates the mean and standard deviation of the number of steps taken by the individuals in each group. Let uM = the true mean number of steps taken by all individuals who take fitness classes in the morning and HE = the true mean number of steps taken by all individuals who take fitness classes in the evening. What are the appropriate hypotheses for this test? O Ho: HM - HE = 0; Hai HM HE <0 %3D Ho: HM - HE > 0; Ho HM - HE - 0 O Ho: HM - HE - 0; Hại HM - HE> 0

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
ChapterCSR: Contents Of Student Resources
Section: Chapter Questions
Problem 11.7EP
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Topic Video
Question
Ti
A fitness instructor at a large gym would like to know if the individuals that take fitness classes in
the morning tend to get in a greater number of steps than individuals that take evening fitness
classes. She selects a random sample of 10 individuals that take fitness classes in the morning and
10 individuals that take fitness classes in the evening. She gives each person a step-counting
At
10
device to wear for one week. At the end of the week she collects the devices and calculates the
mean and standard deviation of the number of steps taken by the individuals in each group. Let uM
= the true mean number of steps taken by all individuals who take fitness classes in the morning
and HE = the true mean number of steps taken by all individuals who take fitness classes in the
evening.
What are the appropriate hypotheses for this test?
O Ho: HM - HE = 0; Ho: HM - HE < 0
O Ho: HM " HE > 0; H: HM - HE = 0
O Ho: HM HE = 0; Ha: HM - HE > 0
O Ho: HM HE < 0; H HM - HE = 0
O Ho: HM - HE - 0: H HM - HE #0
Transcribed Image Text:Ti A fitness instructor at a large gym would like to know if the individuals that take fitness classes in the morning tend to get in a greater number of steps than individuals that take evening fitness classes. She selects a random sample of 10 individuals that take fitness classes in the morning and 10 individuals that take fitness classes in the evening. She gives each person a step-counting At 10 device to wear for one week. At the end of the week she collects the devices and calculates the mean and standard deviation of the number of steps taken by the individuals in each group. Let uM = the true mean number of steps taken by all individuals who take fitness classes in the morning and HE = the true mean number of steps taken by all individuals who take fitness classes in the evening. What are the appropriate hypotheses for this test? O Ho: HM - HE = 0; Ho: HM - HE < 0 O Ho: HM " HE > 0; H: HM - HE = 0 O Ho: HM HE = 0; Ha: HM - HE > 0 O Ho: HM HE < 0; H HM - HE = 0 O Ho: HM - HE - 0: H HM - HE #0
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