Mathematics, 10.06.2020 04:57 babbygirl8597
Suppose that a customer service center claims that the telephone calls it
receives last 114 seconds on average, with a standard deviation of 9
seconds. If you took a sample of 324 telephone calls, which of the following
mean times would be within the 95% confidence interval?
A. 115.5 seconds
B. 114.5 seconds
C. 116.5 seconds
D. 117.5 seconds
Answers: 3
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Suppose that a customer service center claims that the telephone calls it
receives last 114 seconds...
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