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Description: 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 50 adults was selected, and their average coffee assumption was found to be 1.85 cups per day. assume the standard de

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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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 50 adults was selected, and their average coffee assumption 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= 0.10.

a) Is the coffee industry's claim supported by this sample?

-determine the null and alternative hypotheses

-The z-test statistic is ____
-The critical z-score is(are) ____

b) determine the p-value for this test.

I keep getting this answer wrong someone help!

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 50 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 = 0.10, complete parts a and b below.
%3D
a. Is the coffee industry's claim supported by this sample?
Determine the null and alternative hypotheses.
Ho: H
The z-test statistic is
(Round to two decimal places as needed.)
The critical z-score(s) is(are)
(Round to two decimal places as needed. Use a comma to separate answers as needed.)
Because the test statistic
the null hypothesis.
b. Determine the p-value for this test.
The p-value is
(Round to three decimal places as needed.)

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