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2. A recent study stated that if a person chewed gum, the average number of sticks of he or she chew daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found that the mean number of sticks of gum chewed per day was 9. The standard deviation was 1. At a = 0.05, is the number of sticks of gum a person chews per day actually greater than 8? Use the P-value method.

2. A recent study stated that if a person chewed gum, the average number of sticks of he or she chew daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found that the mean number of sticks of gum chewed per day was 9. The standard deviation was 1. At a = 0.05, is the number of sticks of gum a person chews per day actually greater than 8? Use the P-value method.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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2. A recent study stated that if a person chewed gum, the average number of sticks of he or she chew daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found that the mean number of sticks of gum chewed per day was 9. The standard deviation was 1. At a = 0.05, is the number of sticks of gum a person chews per day actually greater than 8? Use the P-value method.
Transcribed Image Text:2. A recent study stated that if a person chewed gum, the average number of sticks of he or she chew daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found that the mean number of sticks of gum chewed per day was 9. The standard deviation was 1. At a = 0.05, is the number of sticks of gum a person chews per day actually greater than 8? Use the P-value method.
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