Sales personnel forSkillings Distributors submit weekly reports listing the customercontacts made during the week. A sample of 65 weekly reports showeda sample mean of 18.5 customer contacts per week. The samplestandard deviation was 5.6. Provide 90% and 95% confidenceintervals for the population mean number of weekly customercontacts for the sales personnel.
90% Confidenceinterval, to 2 decimals:
( , )
95% Confidenceinterval, to 2 decimals:
( , )
