(Answered) The measurements of the diametersnbspin inches of 12

Engineering

The measurements of the diameters? (in inches) of 12 randomly chosen golf balls are listed. At alpha (α) = 0.05?, is there enough evidence to reject the claim that the standard deviation of the measurements of these diameters is 0.006?? Assume the population is normally distributed.

?(a) Write the claim mathematically and identify H0 and Ha. Choose the correct answer below

(b) Find the critical? value(s) ?(Round the three decimal places as needed. Use a comma to separate answer as needed)

?(c) Find the standardized test statistic for X² -test ?(Round to three decimal places as? needed.)

?(d) Decide whether to reject or fail to reject the null hypothesis.

1.677 1.681 1.682
1.683 1.677 1.678
1.676 1.678 1.677
1.677 1.676 1.683

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Computer Engineering, Engineering

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