Question
A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135F. To test this claim, you randomly
A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135F. To test this claim, you randomly select a sample of 32 systems and find the mean activation temperature to be 133F. Assume the population standard deviation is 3.3F. At = 0.10, do you have enough evidence to reject the manufacturer's claim? (a) Draw a curve and label each part to reflect a left, right, or two tailed test (b) H0 : Ha : (c) Critical value: (d) Standardized test statistic: (e) P value: (f) P value/ Alpha comparison: (g) Decision (Reject or Fail to Reject):
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