A poll of 2,163 randomly selected adults showed that 91% of them own cell phones. The technology display below results from a test of the claim that 92% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (e) A.) Is the test two-tailed, left-tailed, or right-tailed? B.)What is the test statistic? C.)What is the P-value? D.) What is the null hypothesis and what do you conclude about it? E.) Choose the correct answer below. A. Reject the null hypothesis because the P-value is less than or equal to the significance level, alphaα. B. Fail to rejectFail to reject the null hypothesis because the P-value is greater than the significance level, alphaα. C.Fail to rejectFail to reject the null hypothesis because the P-value is less than or equal to the significance level, alphaα. D.Reject the null hypothesis because the P-value is greater than the significance level, alphaα.
A poll of 2,163 randomly selected adults showed that 91% of them own cell phones. The technology display below results from a test of the claim that 92% of adults own cell phones. Use the
significance level to complete parts (a) through (e)
A.) Is the test two-tailed, left-tailed, or right-tailed?
B.)What is the test statistic?
C.)What is the P-value?
D.) What is the null hypothesis and what do you conclude about it?
E.) Choose the correct answer below.
A. Reject the null hypothesis because the P-value is less than or equal to the significance level, alphaα.
B. Fail to rejectFail to reject the null hypothesis because the P-value is greater than the significance level, alphaα.
C.Fail to rejectFail to reject the null hypothesis because the P-value is less than or equal to the significance level, alphaα.
D.Reject the null hypothesis because the P-value is greater than the significance level, alphaα.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
