According to a Pew Research Center study, in May 2011, 37% of all American adults had a smart phone (one which the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 431 community college students at random and finds that 196 of them have a smart phone. Then in testing the hypotheses:

H

0

: p = 0.37 versus

H

a

: p > 0.37,

what is the test statistic?

According to a Pew Research Center study, in May 2011, 32% of all American adults had a smart phone (one which the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 351 community college students at random and finds that 130 of them have a smart phone. In testing the hypotheses:

H

0

:p

= 0.32 versus

H

a

:p

> 0.32,

she calculates the test statistic asz

= 2.0230.

Then what is the p value?