Textbook: Applied Statistics in Business and Economics

Problem 9.49

In a hospital's shipment of 3,500 insulin syringes, 14 were unusable due to defects. (a) At 5 .05, is this sufficient evidence to reject future shipments from this supplier if the hospital's quality standard requires 99.7 percent of the syringes to be acceptable? State the hypotheses and decision rule. (b) May normality of the sample proportion p be assumed? (c) Explain the effects of Type I error and Type II error. (d) Find the p-value.

Looking for:

H0:

H1:

Critical Value:

Test Statistic:

Decision:

Conclusion:

Assume Normality? :

Normality Check:

What is a Type 1 error here:

What is a Type 2 error here:

Pvalue: