Question 3 [25] OK furniture store submit weekly records the number of customer contacts contacted per...

Question 3 [25]
OK furniture store submit weekly records the number of customer contacts contacted per week. A sample of 50 weekly reports showed a sample mean of 25 customer contacts per week. The sample standard deviation was 5.2. (Show all your works)
a) Compute the Margin of error at 0.05 significant level

b) Provide a 95% confidence interval for the population mean.

c) Compute the Margin of error at 0.01 significant level

d) Provide a 99% confidence interval for the population mean.

e) With a 0.99 probability, what size of sample should be taken if the desired margin of error is 1.5

Expert Solution

milcah answered 1 year ago

Question 3 [25] OK furniture store submit weekly records the number of customer contacts contacted per...

Question 3 [25] OK furniture store submit weekly records the number of customer contacts contacted per week. A sample of 50 weekly reports showed a sample mean of 25 customer contacts per week. The sample standard deviation was 5.2. (Show all your works) a) Compute the Margin of error at 0.05 significant level [6] b) Provide a 95% confidence interval for the population mean. [4] c) Compute the Margin of error at 0.01 significant level [6] d) Provide a 99%...

Sales personnel for Skillings Distributors submit weekly reportslisting the customer contacts made during the week. A...

Sales personnel for Skillings Distributors submit weekly reportslisting the customer contacts made during the week. A sample of 65weekly reports showed a sample mean of 19.5 customer contacts perweek. The sample standard deviation was 5.2. Provide 90% and 95%confidence intervals for the population mean number of weeklycustomer contacts for the sales personnel. 90% Confidence, to 2 decimals: ( . ) 95% Confidence, to 2 decimals: ( , )

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 85 weekly reports showed a sample mean of 17.5 customer contacts per week. The sample standard deviation was 5.3. Provide 90% and 95% confidence intervals for the population mean number of weekly customer contacts for the sales personnel. A. 90% Confidence interval, to 2 decimals: (___,____) B. 95% Confidence interval, to 2 decimals: (__,___)

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 75 weekly reports showed a sample mean of 17.5 customer contacts per week. The sample standard deviation was 5.1. Provide 90% and 95 percent confidence intervals for the population mean number of weekly customer contacts for the sales personnel.

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 85 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.7. Provide 90% and 95% confidence intervals for the population mean number of weekly customer contacts for the sales personnel. 90% Confidence interval, to 2 decimals:

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 68 weekly reports showed a sample mean of 17.5 customer contacts per week. The sample standard deviation was 5.2. Provide a 90% confidence interval for the population mean number of weekly customer contacts for the sales personnel. (Round your answers to two decimal places.) contacts/week to contacts/week Provide 95% confidence interval for the population mean number of weekly customer contacts for the...

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 55 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.9. Provide 90% and 95% confidence intervals for the population mean number of weekly customer contacts for the sales personnel. 90% Confidence interval, to 2 decimals: ( , ) 95% Confidence interval, to 2 decimals: ( , ) A simple random sample of...

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 85 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.2. Provide 90% and 95% confidence intervals for the population mean number of weekly customer contacts for the sales personnel. 90% Confidence interval, to 2 decimals: ( , ) 95% Confidence interval, to 2 decimals: ( , )

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 67 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.2. Provide a 90% confidence interval for the population mean number of weekly customer contacts for the sales personnel. (Round your answers to two decimal places.) contacts/week to contacts/week Provide 95% confidence interval for the population mean number of weekly customer contacts for...

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 85 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.5. Provide 90% and 95% confidence intervals for the population mean number of weekly customer contacts for the sales personnel. a. 90% confidence interval, to 2 decimals: b. 95% confidence interval, to 2 decimals:

Question

Question 3 [25] OK furniture store submit weekly records the number of customer contacts contacted per...

Solutions

Expert Solution

Related Solutions

Question 3 [25] OK furniture store submit weekly records the number of customer contacts contacted per...

Sales personnel for Skillings Distributors submit weekly reportslisting the customer contacts made during the week. A...

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week....