The number of robocalls received by a given household in twelve
randomly selected weeks results in...
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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)
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c 630 1137We have for given data Sample mean
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