A recent study showed that the average number of sticks of gum a person chews in a week is 16. The population standard deviation was 1.4. A college student believes that the guys in his dormitory chew less gum in a week. He conducts a study and samples 31 of the guys in his dorm and finds that on average they chew 14 sticks of gum in a week. Test the college student's claim at a=0.05. The correct hypotheses would be: Ο Ηo:μ < 16 HA: 16 (claim) • Η: μ > 16 HA16 (claim) Ο Η: μ = 16 HA: 16 (claim) Since the level of significance is 0.05 the critical value is -1.645 (round to 3 places) The test statistic is: The p-value is: (round to 3 places)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A recent study showed that the average number of sticks of gum a person chews in a week is 16. The
population standard deviation was 1.4. A college student believes that the guys in his dormitory chew less
gum in a week. He conducts a study and samples 31 of the guys in his dorm and finds that on average they
chew 14 sticks of gum in a week. Test the college student's claim at a-0.05.
The correct hypotheses would be:
Ο Ηo: μ < 16
HA:
Ο Η: μ >
HA:
16 (claim)
16
16 (claim)
Ho:
Ο Ηρ: μ = 16
HA16 (claim)
Since the level of significance is 0.05 the critical value is -1.645
(round to 3 places)
The p-value is:
The test statistic is:
(round to 3 places)
Transcribed Image Text:A recent study showed that the average number of sticks of gum a person chews in a week is 16. The population standard deviation was 1.4. A college student believes that the guys in his dormitory chew less gum in a week. He conducts a study and samples 31 of the guys in his dorm and finds that on average they chew 14 sticks of gum in a week. Test the college student's claim at a-0.05. The correct hypotheses would be: Ο Ηo: μ < 16 HA: Ο Η: μ > HA: 16 (claim) 16 16 (claim) Ho: Ο Ηρ: μ = 16 HA16 (claim) Since the level of significance is 0.05 the critical value is -1.645 (round to 3 places) The p-value is: The test statistic is: (round to 3 places)
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