The XYZ Corporation is interested in possible differences in days worked by sala
ID: 3071028 • Letter: T
Question
The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
Based on the given hypotheses, choose the correct option
H0: 1 = 2 = 3
H1: Not all the means are equal
= 0.05
On the basis of the above findings, we cannot reject the null hypothesis.
Based on the given hypotheses, choose the correct option.
H0: 21 = 22 = 23
H1: Not all the variances are equal
= 0.05
On the basis of the above-determined Hcalc, we fail to reject the null hypothesis.
The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
Explanation / Answer
applying one way ANOVA"
Reject the null hypothesis if p-value < 0.05
On the basis of the above findings, we cannot reject the null hypothesis : true (as p vlaue >0.05)
Reject the null hypothesis if H > 8.38
Hcalc =variance(highest)/varaince(smallest)=462.4/51.70 =8.94
On the basis of the above-determined Hcalc, we fail to reject the null hypothesis.: False
Groups mean n std dev Variance Budgets (5 workers) 258.2000 5 7.1903 51.7000 Payables (10 workers) 238.2000 10 21.5035 462.4000 Pricing (8 workers) 244.1250 8 10.1621 103.2679Related Questions
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