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30-11-2022
Mathematics

contestada

13. A sample of 64 DVD's had a mean run time of 121.8
minutes, with a standard deviation of 12.3 minutes.
Determine a 95% confidence interval for the population
mean.

ET:

b. Confidence Interval: 109.5 to 134.1

a. Confidence Interval: 118.8 to 124.8 0.1 =

c. Confidence Interval: 115.8 to 127.8

d. Confidence Interval: 112.4 to 131.2

13 A sample of 64 DVDs had a mean run time of 1218 minutes with a standard deviation of 123 minutes Determine a 95 confidence interval for the population mean E class=

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