Mathematics, 07.05.2021 01:00 randenbrown1653
An entertainment company is in the planning stages of producing a new computer-animated movie for national release, so they need to determine the production time (in labor-hours) necessary to produce the movie. The mean production time for a random sample of 21 big-screen computer animated movies is 48,600 labor-hours, with a standard deviation of 6,570.
Required:
a. Determine the sample mean, sample standard deviation, and sample size.
b. Determine the critical value that corresponds to the 90% level of confidence, and compute the margin of error, m.
c. Give the 90% confidence interval. Interpret your confidence interval in context.
Answers: 1
Mathematics, 21.06.2019 16:30
What could explain what happened when the time was equal to 120 minutes
Answers: 2
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