# In a large corporation the mean entry level salary is

• 7

This preview shows page 6 - 7 out of 7 pages.

2. In a large corporation the mean entry level salary is \$27,000 with a standard deviation of σ = 6,000. The entry level salaries for a random sample of 15 employees with only high school degrees is ´X= \$24,100 . Do people with only high school degrees earn less than the rest of the company? Conduct a one-tailedhypothesis test with a= .05.2a.The hypothesis test should be...(highlight one)(1 point)a) one-tailed (directional)b) two-tailed (non-directional)
2b. According to youranswers above, conduct the hypothesis test.STEP 1: State your hypotheses in both words and symbols. Be sure to clearly label your null and research (alternative) hypotheses.(4 points)
STEP 2: Find the critical value.(2 points)
STEP 3: Compute the appropriate test-statistic.(4 points)
STEP 4: Evaluate the null hypothesis (based on youranswers to the above steps).REJECTor FAIL TO REJECT(highlight one)(1 point)Which is the best conclusion, according to yourdecision in STEP 4? (Highlight one)(1 point)a. People with only high school degrees make the sameamount of money as the rest of the population.b. People with only high school degrees make significantly moremoney than therest of the population.c. People with only high school degrees make significantly less money than the rest of the population.
2c. IFyour decision had been to reject the null, what is the probability that you made a Type I error in this problem?(1 point).05 End of Exam ………………………………………………………………………………………