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Quality Associates :

Case 1 Quality Associates

Introduction :

Introduction It is a case of a consulting firm which consults its clients regarding statistical procedures that is used to control the production process. In this case, Quality Associates has taken example with random sample size 30 of 4 samples i.e. 120 out of 800 given observations to explain the quality control process.

Hypothesis :

Hypothesis H0 : µ = 12 Ha : µ ≠ 12 Level of Significance = 0.01

Z test :

Z test z =

Z values :

Z values Test statistic (z value) for all the samples

P value :

P value P values (2*(1-z score))for all the samples

Rejection of null hypothesis :

Rejection of null hypothesis Rejection rule for two tailed test using p-value approach Reject H0 if p-value ≤ α

Standard Deviation :

Standard Deviation Computed standard deviation for each of the samples

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Quality Associates :

Case 1 Quality Associates

Introduction :

Introduction It is a case of a consulting firm which consults its clients regarding statistical procedures that is used to control the production process. In this case, Quality Associates has taken example with random sample size 30 of 4 samples i.e. 120 out of 800 given observations to explain the quality control process.

Hypothesis :

Hypothesis H0 : µ = 12 Ha : µ ≠ 12 Level of Significance = 0.01

Z test :

Z test z =

Z values :...

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