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Suppose the coffee industry claimed that the average adult drinks 1.7 cups of coffee per day. To test this claim, a random sample of 60 adults was selected, and their average coffee consumption was found to be 1.85 cups per day. Assume the standard deviation of daily coffee consumption per day is 0.6 cups. Using a = 0.01. complete parts a and b below, a. Is the coffee industry's claim supported by this sample? Determine the null and alternative hypotheses. Ho - 1.7 t H 1.7 tic The z-test statistic is 1.94 ti (Round to two decimal places as needed.) ti The critical z-score(s) is(are)O (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Suppose the coffee industry claimed that the average adult drinks 1.7 cups of coffee per day. To test this claim, a random sample of 60 adults was selected, and their average coffee consumption was found to be 1.85 cups per day. Assume the standard deviation of daily coffee consumption per day is 0.6 cups. Using a = 0.01. complete parts a and b below, a. Is the coffee industry's claim supported by this sample? Determine the null and alternative hypotheses. Ho - 1.7 t H 1.7 tic The z-test statistic is 1.94 ti (Round to two decimal places as needed.) ti The critical z-score(s) is(are)O (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Suppose the coffee industry claimed that the average adult drinks 1.7 cups of coffee per day. To test this claim, a random sample of 60 adults was selected, and their average coffee consumption was found to be 1.85 cups per day. Assume the standard deviation of daily coffee consumption per day is 0.6 cups. Using a = 0.01. complete parts a and b below, a. Is the coffee industry's claim supported by this sample? Determine the null and alternative hypotheses. Ho: H - 1.7 t H + 1.7 to The z-test statistic is 1.94. ti (Round to two decimal places as needed.) sti The critical z-score(s) intare) (Round to two decimal places as needed. Use a comma to separate answers as needed.)
Transcribed Image Text:Suppose the coffee industry claimed that the average adult drinks 1.7 cups of coffee per day. To test this claim, a random sample of 60 adults was selected, and their average coffee consumption was found to be 1.85 cups per day. Assume the standard deviation of daily coffee consumption per day is 0.6 cups. Using a = 0.01. complete parts a and b below, a. Is the coffee industry's claim supported by this sample? Determine the null and alternative hypotheses. Ho: H - 1.7 t H + 1.7 to The z-test statistic is 1.94. ti (Round to two decimal places as needed.) sti The critical z-score(s) intare) (Round to two decimal places as needed. Use a comma to separate answers as needed.)
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