Answer all please An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with a standard deviation of 25 hours. If a sample of 35 bulbshas an average life of 770 hours, find a 96% confidence interval for the population mean of all bulbs produced by this firm.Click here to view page 1 of the standard normal distribution table.Click here to view page 2 of the standard normal distribution table.Click here to view page 1 of the table of critical values of the t-distribution.The confidence interval is The heights of a random sample of 70 college students showed a mean of 174.6 centimeters and a standard deviation of 6.9 centimeters.(a) Construct a 98% confidence interval for the mean height of all college students.(b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 174.6 centimeters?Click here to view page 1 of the standard normal distribution table.(a) The confidence interval is

Name: Answer all please An electrical firm manufactures light bulbs that hav
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Answer all please An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with a standard deviation of 25 hours. If a sample of 35 bulbshas an average life of 770 hours, find a 96% confidence