Question

Question Help In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6970 subjects randomly selected from an online group involved with ears. There were 1315 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution. Identify the null hypothesis and alternative hypothesis. O A. Ho:p<0.2 H: p=0.2 OB. Ho:p>0.2 He: p=0.2 0C. Hop+0.2 Hy: p=0.2 OD. Ho: p = 0.2 Hip#02 O E. Ho: p=0.2 H:p<0.2 OF. Họp = 0.2 H:p>0.2 The test statistic is z= (Round to two decimal places as needed.) The P-value is a (Round to three decimal places as needed.) Because the P-value is the significance level, the null hypothesis. There is evidence to support the claim that the return rate is less than 20%. less than greater than Click to select your answer(s).

Answer 1

The solution to this problem is given by