A researcher has noted that the repair times of a sample of 15 new lawn mowers has a standard deviation of 4 minutes. A 95% conf

Question

3 years ago

8

A researcher has noted that the repair times of a sample of 15 new lawn mowers has a standard deviation of 4 minutes. A 95% conf

idence interval estimate for the variance of service times for all its new lawn mowers is:_______
a) 8.58 to 39.79
b) 1.64 to 1.96
c) 4 to 16
d) 4 to 15

Mathematics

1 answer:

mamaluj [8] · Answer 1 · 2022-08-17T04:54:25+03:00

mamaluj [8]3 years ago

4 0

Answer: C
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