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Company A is trying to sell its website to Company B. As part of the sale, Company A claims that the average user of their site stays on the site for 10 minutes. To test this claim Company B collects the times (in minutes) below for a sample of 10 users. Assume normality.

Time
3.3
6.6
4.9
6.1
0.4
10.5
18.3
3.7
4.2
6.5
0.1

Required:
a. Construct a 91% confidence interval for the true mean time spent on the web site.
b. What is the lower limit of the 91% interval?
c. What is the upper limit of the 91% interval?

Sagot :

saradabhattrai37

Answer:

simple company A should go and talk to company B.

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