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 15:20, lambobacon9027
Classify the following triangle check all that apply
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Mathematics, 21.06.2019 17:00, Taylor129
Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?
Answers: 1
A microwave manufacturing company has just switched to a new automated production system. Unfortunat...
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