The manager of a company believes that differences in sales performance depends upon the salesperson's age. Independent
Question:
The manager of a company believes that differences in sales performance depends upon the salesperson's age. Independent samples of salespeople were taken and their weekly sales record is reported below. At 95% confidence, test the hypotheses (Use the Kruskal-Wallis test.)
Below 30 years No. of sales | Rank | Between 30 to 45 years No. of sales | Rank | Over 45 years No. of sales | Rank |
24 | 23 | 30 | |||
16 | 17 | 20 | |||
21 | 22 | 23 | |||
15 | 25 | 25 | |||
19 | 18 | 34 | |||
26 | 29 | 36 | |||
1. Formulate the null hypothesis blank
2. Select the significance level blank
3a. Select the test statistic blank
There is difference in the performance of the sales due to age groups.chi square.95M1=M2=M3FZ.05M1>M2>M3.005M1 H.1
Q8. The manager of a company believes that differences in sales performance depends upon the salesperson's age. Independent samples of salespeople were taken and their weekly sales record is reported below. At 95% confidence, test the hypotheses (Use the Kruskal-Wallis test.)
Below 30 years No. of sales | Rank | Between 30 to 45 years No. of sales | Rank | Over 45 years No. of sales | Rank |
24 | 23 | 30 | |||
16 | 17 | 20 | |||
21 | 22 | 23 | |||
15 | 25 | 25 | |||
19 | 18 | 34 | |||
26 | 29 | 36 | |||
c. Calculate the test statistic
Q8. The manager of a company believes that differences in sales performance depends upon the salesperson's age. Independent samples of salespeople were taken and their weekly sales record is reported below. At 95% confidence, test the hypotheses (Use the Kruskal-Wallis test.)
Below 30 years No. of sales | Rank | Between 30 to 45 years No. of sales | Rank | Over 45 years No. of sales | Rank |
24 | 23 | 30 | |||
16 | 17 | 20 | |||
21 | 22 | 23 | |||
15 | 25 | 25 | |||
19 | 18 | 34 | |||
26 | 29 | 36 | |||
4. Identify p-value value blank for the test statistics and state the decision rule blank
Test Statistic-critical=
Business Statistics Communicating With Numbers
ISBN: 9780078020551
2nd Edition
Authors: Sanjiv Jaggia, Alison Kelly