In 2014, cnet.com listed the battery life (in hours) and maximum luminous intensity (i.e., screen brightness, in

Question:

In 2014, cnet.com listed the battery life (in hours) and maximum luminous intensity (i.e., screen brightness, in cd>m2) for a sample of tablet computers. We want to know if we can predict battery life from the maximum brightness. (reviews.cnet.com/8301-19736_7-20080768-251/cnet-updates-tablet-testresults/? tag=contentBody; contentHighlights)

image

image

image

a) How many tablet computers were tested?

b) Are the conditions for inference satisfied? Explain.

c) Is there evidence of an association between maximum brightness of the screen and battery life? Test an appropriate hypothesis and state your conclusion.

d) Is the association strong? Explain.e) What is the equation of the regression line?

f) Create a 95% confidence interval for the slope of the true line.

g) Interpret your interval in this context.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Business Statistics

ISBN: 9780134705217

4th Edition

Authors: Norean Sharpe, Richard Veaux, Paul Velleman

Question Posted: