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The number of robocalls received by a given household in twelve randomly selected weeks results in...

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Statistics

The number of robocalls received by a given household in twelverandomly selected weeks results in the following data set: {9, 7,2, 9, 4, 8, 4, 10, 15, 10, 20, 8}. Use this to find the 90%confidence interval estimate of the mean number of calls receivedper week. Use a T-interval.

Select one:

a. (5.72, 11.94)

b. (6.06, 11.60)

c. (6.30, 11.37)

d. (6.51, 11.16)

e. (4.44. 13.22)

f. (6.61, 11.06)

Answer & Explanation Solved by verified expert
3.7 Ratings (675 Votes)
c 630 1137We have for given data Sample mean    See Answer
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