At a large company, the attitudes of workers are regularly measured with a standardized test. The scores on the test ran
Posted: Mon Jul 11, 2022 11:28 am
At a large company, the attitudes of workers are regularlymeasured with a standardized test. The scores on the test rangefrom 0 to 100, with higher scores indicating greater satisfactionwith their job. The mean score over all of the company’s employeeswas 74, with a standard deviation of 𝜎 = 8. Some time ago, thecompany adopted a policy of telecommuting. After the policy hadbeen in place for six months, a random sample of 80 workers wasgiven the test to see whether their mean level of satisfaction hadimproved since the policy was put into effect. The sample mean was56. Assume the standard deviation is still 𝜎 = 8. Do the dataprovide evidence to support the theory that working from home willincrease the mean level of satisfaction of employees at the 𝛼 =0.05 level?
1. Null and Alternative hypotheses
2. Appropriate test?
3. Test statistic?
4. Critical Value?
5. Decision about the null hypothesis?
1. Null and Alternative hypotheses
2. Appropriate test?
3. Test statistic?
4. Critical Value?
5. Decision about the null hypothesis?