hift Alt holt on 1: The data below describe annual salaries of two Divisions at
ID: 3324552 • Letter: H
Question
hift Alt holt on 1: The data below describe annual salaries of two Divisions at K-Mart 9250 8250 7375 9625 8800 Division A Division B10650 11500 155010950 11400 11250 10500 10600 Answer the following questions (use 3 decimal places): (1%) The Mean Salary of Davison A = , and the variance of Salary of Davison A-.......The Mean Salary of Davison B· , and the Variance of Salary of Davison B (2%) Assuming that the populations of the two divisions salaries are more or less normally distributed, and have equal variances, the degree of freedom for the difference in means i..., and the pooled ariance is. (2%) when testing the hypothesis that Ho H 1: the test-statistic is statistic will be ..he decision in this case will be to reject.... or ail to reject hypothesis. , and the critical the null (2%) when testing the hypothesis that Ho: ,-Ha H1thqua, the test-statistic will be an, and the critical statistic will be.. The decision in this case will be to reject o. fail to reject.... the null hypothesis. (3%) If the variance of the population of salary of division A is 2200000 and the variance of the population of salary of division B is 2600000, then testing the hypothesis that Ho: ,M: . (at 1% type l error) will yield a test-statistic of , and the critical statistic will be The decision in this case will be to rejec.. or fail to reject .....he null hypothesis.Explanation / Answer
The mean salary of Davison a is 8171.875 and the variance is 10030078. The mean salary of Davison B is 11050 and the variance is 184285.7
df of diffrence in mean is 15 and pooled variance is 7
PS: We are directed to solve only first 4 parts of a question if multi part question is posted
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