Average number of sticks of gum

Reference no: EM1395955

A recent study stated that if a person chewed gum, the average number of sticks of gum he or she chewed daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per day was 9. The standard deviation of the population is 1. At α = .05, is the number of sticks of gum a person chews per day actually is greater than 8?

Reference no: EM1395955

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