Do You Own a Smartphone?

A study¹conducted 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.

Let group 1 be US men and let group 2 be US women.

Clickhereto accessStatKey.

¹Anderson M, "The Demographics of Device Ownership,"pewresearch.org, October 29, 2015.

(a) State the null and alternative hypotheses. Your answer should be an expression composed of symbols:=

,

,

<

,

>

,

,

1

,

2

,

p

,

p

1

,

p

2

,

,

p

^

,

p

^

1

,

p

^

2

,

r

.

b) Give the notation for the sample statistic.

(e) UseStatKeyor other technology to find thep-value.

Round your answer to three decimal places.

p-value =Enter your answer in accordance to the question statement