Question

A sample of 9 engine cylinders is randomly selected and the following diameters are measured in...

A sample of 9 engine cylinders is randomly selected and the following diameters are measured in inches. Give a point estimate for the population standard deviation. Round your answer to three decimal places. 8.61,8.62,8.45,8.46,8.56,8.58,8.49,8.59,8.57

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Answer #1

The best  point estimate for the population standard deviation =Sample standard deviation =0.064

x
8.61 0.003869
8.62 0.005213
8.45 0.009565
8.46 0.007709
8.56 0.000149
8.58 0.001037
8.49 0.003341
8.59 0.001781
8.57 0.000493
Total 76.93 0.033156

Sample standard deviation

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