Mathematics, 02.03.2020 18:24 jay5134
A microwave manufacturing company has just switched to a new automated production system. Unfortunately, the new machinery has been frequently failing and requiring repairs and service. The company has been able to provide its customers with a completion time of 6 days or less. To analyze whether the completion time has increased, the production manager took a sample of 36 jobs and found that the sample mean completion time was 6.5 days with a sample standard deviation of 1.5 days. (a) At 10% significance level, test whether the completion time has increased. (b) Find a 90% confidence interval for the average completion time.
Answers: 3
Mathematics, 21.06.2019 16:10, lilyplant4289
The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.
Answers: 1
Mathematics, 22.06.2019 06:00, dianamunoz580
Ndicate in standard form the equation of the line through the given points. p(0, -4), q(5, 1)
Answers: 2
A microwave manufacturing company has just switched to a new automated production system. Unfortunat...
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