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Application of z-test/t-test 1. The college students in a university go through an average of 500 disposable cups in a year with a standard deviation of 42 cups. To raise environmental awareness, a student group at a large university volunteered to help count how many cups were used by students on their campus. A random sample of 50 students' results found that they used a mean of 476. At a 0.01, is there sufficient evidence to conclude that the mean differs from 500?

Application of z-test/t-test 1. The college students in a university go through an average of 500 disposable cups in a year with a standard deviation of 42 cups. To raise environmental awareness, a student group at a large university volunteered to help count how many cups were used by students on their campus. A random sample of 50 students' results found that they used a mean of 476. At a 0.01, is there sufficient evidence to conclude that the mean differs from 500?

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
Section10.3: Measures Of Spread
Problem 1GP
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Please answer the following questions. See attached photo for the problem.

1. State the hypotheses and identify the claim.
2. Find the critical value(s).
3. Compute the test value.
4. Make the decision. Show your illustration.
5. Summarize the results


Reminder: Round off the final answer of the test value to the nearest hundredths. No rounding off
during the process

Application of z-test/t-test 1. The college students in a university go through an average of 500 disposable cups in a year with a standard deviation of 42 cups. To raise environmental awareness, a student group at a large university volunteered to help count how many cups were used by students on their campus. A random sample of 50 students' results found that they used a mean of 476. At a 0.01, is there sufficient evidence to conclude that the mean differs from 500?
Transcribed Image Text:Application of z-test/t-test 1. The college students in a university go through an average of 500 disposable cups in a year with a standard deviation of 42 cups. To raise environmental awareness, a student group at a large university volunteered to help count how many cups were used by students on their campus. A random sample of 50 students' results found that they used a mean of 476. At a 0.01, is there sufficient evidence to conclude that the mean differs from 500?
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