Question

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One study reports that 33% of newly hired MBAs are confronted with unethical business practices during their first year of employment One business school dean wondered the MBA graduates had similar experiences. She surveyed recent graduates from her schools MBA programs to find that 29% of the 121 graduates from the previous year claim to have encountered unethical business practices in the workplace Can she conclude that her graduates' experiences we different? What are the null and tomative hypotheses? OA 0.33 H/033 OBH 033 vs H 033 OC #033 vs H 033 ODH D029 VS HAD 0.29 OE Hp033 vs HP033 OF HED:0 29 vs HDX029

Answer 1

Let, x= Number of graduates from the previous year out of n = 121 n=121 Here, p = 0.29, have, we på = x x = i = 0.29 X 121 =35 Himi note that, Po= 0.33 goe 1-po= 0.67 claim: To test, encountered unethical bussiness practices in the workplace that the graduates experiences are different. To testu The null and alternative hypothesis arre, Ans(A) Ho: p = 0.33 vs HA: P 8 0.33 The test statistic is, Z cal - Å - po NNCoil) Under Ho. Pogo n 0.29 -0.33 10:35x0.67 12] .: Z.com : -0.94 "Ansi- B The test statistic is -0.94

Anso volvers ant p-value= P(Z <= 0.94) + P (zy ongqi = P(ZY 0.94) + P(Z 70.94) ( standardi normal distif i's symmetric) 2X Plzy 0.94) - 24 6 1747 .: p-value = 0.349

Decision criteria: # P-value approach. reject Ho at 2% level of significance it p-value ad (105) giren that, significance level ed] =0.05 Here, j.e P-value 0.349 0.05 .: we fail to deject the null hypothesis (HO) at 5.60 level of significance conclusion:- Ans: Fail to reject the null hypothesis - there is insufficient evidence that the rate of unethical business practice exposure is different from that reported in the study