P = X / n = 153/348 = 0.4397
Test Statistic :-
Z = ( P - P0 ) / √ ((P0 * q0)/n))
Z = ( 0.439655 - 0.37 ) / √(( 0.37 * 0.63) /348))
Z = 2.69
Question 8 According to a Pew Research Center study, in May 2011, 37% of all American...
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 465 community college students at random and finds that 176 of them have a smart phone. Then in testing the hypotheses: H0: p = 0.37 versus Ha: p > 0.37, what...
Question 8 According to a Pew Research Center study, in May 2011, 31% of all American Type numbers in the boxes adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 365 community college students at random and finds that 115 of them have a smart phone. Then in testing the hypotheses: H:p=0.31...
According to a Pew Research Center study, in May 2011, 33% of all American Type nun adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 360 community college student at random and finds that 149 of them have a smart phone. Then in testing the hypotheses: Ho: p = 0.33 versus Hp...
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 338 community college students at random and finds that 135 of them have a smart phone. Then in testing the hypotheses: H0: p = 0.37 versus Ha: p > 0.37, what...
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 the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 344 community college students at random and finds that 132 of them have a smart phone. Then in testing the hypotheses:...
According to a Pew Research Center study, in May 2011, 30% 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 422 community college students at random and finds that 140 of them have a smart phone. Then in testing the hypotheses: H 0 : p = 0.3 versus H a :...
Question 8 According to a Pew Research Center study, in May 2011, 36% of all American Typen adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 371 community college students at random and finds that 136 of them have a smart phone. Then in testing the hypotheses: Ho: P = 0.36 versus...
According to a Pew Research Center study, in May 2011, 44% of all American Type numbers in the boxes. adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 344 community college students at random and finds that 159 of them have a smart phone. Then in testing the hypotheses: H: P =...
According to a Pew Research Center study, in May 2011, 39% of all American Type numbers in the boxes. adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 475 community college students at random and finds that 216 of them have a smart phone. Then in testing the hypotheses: H:p=0.39 versus H,:>...
Question 29 According to a Pew Research Center study, in May 2011, 30% of all American Type numbers in the boxes. adults had a smart phone (one which the user can use to read email and surf 10 points the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 452 community college students at random and finds that 180 of them have a smart phone. Then in testing the hypotheses: Ho:...