It is of interest to verify that the content of coke-filled bottles is the prescribed 13 ounces. Assuming that the content is a random variable having a normal distribution Nμ,0.04, a random sample of size n=25 is taken and it is found that the sample mean is 12.9. Test the null hypothesis

It is of interest to verify that the content of coke-filled bottles is the prescribed 13 ounces. Assuming that the content is a random variable having a normal distribution Nμ,0.04, a random sample of size n=25 is taken and it is found that the sample mean is 12.9. Test the null hypothesis

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 9SGR

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Question

=
Ho: μ
H₁: µ< 13
at the 5% level of significance. The value of the test statistic and the decision are
13 vs
-2.5, reject the null hypothesis
-0.5, do not reject the null hypothesis
0, do not reject the null hypothesis
-12.5, reject the null hypothesis

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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