Question

In: Statistics and Probability

Suppose a marketing company wants to determine the current proportion of customers who click on ads...

Suppose a marketing company wants to determine the current proportion of customers who click on ads on their smartphones. It was estimated that the current proportion of customers who click on ads on their smartphones is 0.39 based on a random sample of 100 customers. Compute a 95% confidence interval for the true proportion of customers who click on ads on their smartphones and fill in the blanks appropriately.

Answer:

___<P<____ (3 decimal Places)

Solutions

Expert Solution


Related Solutions

Suppose a marketing company wants to determine the current proportion of customers who click on ads...
Suppose a marketing company wants to determine the current proportion of customers who click on ads on their smartphones. It was estimated that the current proportion of customers who click on ads on their smartphones is 0.65. How many customers should the company survey in order to be 94% confident that the margin of error is 0.22 for the confidence interval of true proportion of customers who click on ads on their smartphones? Answer: (Round up your answer to nearest...
Suppose the manager of a shoe store wants to determine the current percentage of customers who...
Suppose the manager of a shoe store wants to determine the current percentage of customers who are males. How many customers should the manager survey in order to be 99% confident that the estimated (sample) proportion is within 10 percentage points of the true population proportion of customers who are males? z0.10 z0.05 z0.04 z0.025 z0.01 z0.005 1.282 1.645 1.751 1.960 2.326 2.576
Suppose the manager of a shoe store wants to determine the current percentage of customers who...
Suppose the manager of a shoe store wants to determine the current percentage of customers who are males. How many customers should the manager survey in order to be 92% confident that the estimated (sample) proportion is within 10 percentage points of the true population proportion of customers who are males? z0.10 z0.05 z0.04 z0.025 z0.01 z0.005 1.282 1.645 1.751 1.960 2.326 2.576
A magazine company is planning to survey customers to determine the proportion who will renew their...
A magazine company is planning to survey customers to determine the proportion who will renew their subscription for the coming year. The magazine wants to estimate the population proportion with 95​% confidence and a margin of error equal to ±0.08. What sample size is​ required? The required sample size is customers. ​(Round up to the nearest whole number as​ needed.)
1. A large insurance company wants to determine whether the proportion of male policyholders who would...
1. A large insurance company wants to determine whether the proportion of male policyholders who would not submit auto insurance claims of under $500 is the same as the proportion of female policyholders who do not submit claims of under $500. A random sample of 400 male policyholders produced 272 who had not submitted claims of under $500, whereas a random sample of 300 female policyholders produced 183 who had not submitted claims of under $500 a) Construct a 90%...
A physical therapist wants to determine the difference in the proportion of men and women who...
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. a. What sample size should be obtained if she wishes the estimate to be within two percentage points with 99​% ​confidence, assuming that she uses the estimates of 22.9​% male and 19.1​% female from a previous year? b. What sample size should be obtained if she wishes the estimate to be within two percentage points with 99​% ​confidence,...
A physical therapist wants to determine the difference in the proportion of men and women who...
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if she wishes the estimate to be within two percentage points with 90​% ​confidence, assuming that ​(a) she uses the estimates of 21.7​% male and 19.5​% female from a previous​ year? n=__ ​(Round up to the nearest whole​ number.) ​(b) she does not use any prior​ estimates? n=___ ​(Round up to the...
A physical therapist wants to determine the difference in the proportion of men and women who...
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within two percentage points with 99 % confidence, assuming that (a) hehe uses the estimates of 22.4 % male and 18.5 % female from a previous year? (b) he does not use any prior estimates?
A physical therapist wants to determine the difference in the proportion of men and women who...
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within three percentage points with 99​% ​confidence, assuming that ​(a) he uses the estimates of 21.3​% male and 19.6​% female from a previous​ year? ​(b) he does not use any prior​ estimates? ​(a) n equals nothing ​(Round up to the nearest whole​ number.)
A physical therapist wants to determine the difference in the proportion of men and women who...
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within two percentage points with 99​% ​confidence, assuming that ​(a) he uses the estimates of 22.6​% male and 18.9​% female from a previous​ year? n=____ ​(b) he does not use any prior​ estimates? n=____
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT