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this attempt: 2.7 out of 9 d Feb 7 at 10:15pm empt took 9 minutes. Question 1 1.2 / 6 pts A sample of 120

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this attempt: 2.7 out of 9 d Feb 7 at 10:15pm empt took 9 minutes. Question 1 1.2 / 6 pts A sample of 120 body builders have an average of 278.20 pounds and a sample standard deviation of 12.62 pounds. Construct a 95% confidence interval to estimate the population standard deviation of the weights of body builders a) The two chi-squared values are 208.9586 and 125.4429 b) We are 95 % confident that the population standard deviation of crash tests is between 208.9586 and 125 1429 Answer 1 this attempt: 2.7 out of 9 d Feb 7 at 10:15pm empt took 9 minutes. Question 1 1.2 / 6 pts A sample of 120 body builders have an average of 278.20 pounds and a sample standard deviation of 12.62 pounds. Construct a 95% confidence interval to estimate the population standard deviation of the weights of body builders a) The two chi-squared values are 208.9586 and 125.4429 b) We are 95 % confident that the population standard deviation of crash tests is between 208.9586 and 125 1429 Answer 1

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