A sample of 16 students showed that the variance in the number of hours they spend studying is 25 . At the 5% level of significance, test to see if the variance of the population is significantly different from 30 . Use the critical value approach
H0: ?2 = 30
Ha: ?2 ? 30
chi-square = 12.5; critical values: 6.262 and 27.488; do not reject H0
You might also like to view...
In a periodic inventory system, costs of goods sold are computed through an adjustment process at the end of the period
a. True b. False Indicate whether the statement is true or false
The SQL command "Group by" can be used to order an amount in a descending order.
Answer the following statement true (T) or false (F)
Darya wants to apply the job characteristics model to her employees’ work. She plans to redesign jobs so that each employee will be creating widgets from start to finish. Darya is trying to change the ______ of the jobs.
A. feedback B. task identity C. task significance D. autonomy
Contacting a customer the day after a computer issue was resolved to see how the service desk's service was is an example of a(n) _______-driven survey.
Fill in the blank(s) with the appropriate word(s).