A study conducted in July 2015 examines smartphone ownership by US adults. A random sample of 2001

Question:

A study conducted in July 2015 examines smartphone ownership by US adults. A random sample of 2001 people were surveyed, and the study shows that 688 of the 989 men own a smartphone and 671 of the 1012 women own a smartphone. We want to test whether the survey results provide evidence of a difference in the proportion owning a smartphone between men and women.

(a) State the null and alternative hypotheses, and define the parameters. 

(b) Give the notation and value of the sample statistic. In the sample, which group has higher smartphone ownership: men or women? 

(c) Use StatKey or other technology to find the p-value.  

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

Step by Step Answer:

Related Book For  book-img-for-question

Statistics, Enhanced Unlocking The Power Of Data

ISBN: 9781119308843

2nd Edition

Authors: Robin H Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F Lock, Dennis F Lock

Question Posted: