Question
In: Statistics and Probability
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 90 items from a population with = 9 resulted in a sample mean of 38.
If required, round your answers to two decimal places.
a. Provide a 90% confidence interval for the
population mean.
to
b. Provide a 95% confidence interval for the
population mean.
to
c. Provide a 99% confidence interval for the
population mean.
to
Solutions
orchestra answered 1 year agoRelated Solutions
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 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:
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 16.5 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.
Provide 95% confidence interval 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 17.5 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:
_____ , _____
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 65 weekly reports showed
a sample mean of 18.5 customer contacts per week. The sample
standard deviation was 5.6. 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:
( , )
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