# Statistics-Hypothesis Testing

Heather Carielli is a former student who earned a master degree at the University of Arkansas. When she randomly selected 16 new text books in the college book store she found that they had prices with a mean of $70.41 and a standard deviation of $19.70. Is there sufficient evidence to warrant rejection of a claim in the college catalog that the mean price of the textbook at the college is less than $75.00? use .05 significance level. Accept or the reject the null?

© BrainMass Inc. brainmass.com June 3, 2020, 9:44 pm ad1c9bdddfhttps://brainmass.com/statistics/hypothesis-testing/statistics-hypothesis-testing-196806

#### Solution Preview

SE = s/sqrt n = 19.70/sqrt 16 = 4.925

t = (x-bar - mu)/SE

t = (70.41 - 75)/4.925 = ...

#### Solution Summary

Neat and step-wise solutions are provided.

$2.19