The proportion of customers who are completely satisfied in a recent

The proportion of customers who are completely

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5. The proportion of customers who are completely satisfied in a recent satisfaction survey of 400 customers at XYC Inc. is found to be 0.24. (6 points)a.Test the hypothesis that the population proportion of customers who are completely satisfied is greater than 0.21 using the critical value approach and a 0.05 level of significance.
08/20/2019 BUSI 1013 Emily Thompson b.Test the hypothesis that the population proportion of customers who are completely satisfied is less than 0.28 using the p-value approach and a 0.05 level of significance. c.Test the hypothesis that the population proportion of customers who are completely satisfied is different from 0.22 using the p-value approach and a 0.05 level of significance.
08/20/2019 BUSI 1013 Emily Thompson 6. Use the data in BUSI1013 Bank Dataset.xlsx(from Unit 1 Exercise Question 2) to answer this question. (4 points)a.Perform a statistical test to see whether the proportion of female customers in the population is lower than 52%. Use the p-value approach and a 0.05 level of significance