Suppose that 9 observations are drawn from a normal population whose standard deviation is 2 . The observations are: 15, 9, 13, 11, 8, 12, 11, 7, and 10 . At 95% confidence, you want to determine whether the mean of the population from which this sample was taken is significantly different from 10
a. State the null and alternative hypotheses.
b. Compute the value of the test statistic.
c. Compute the p-value.
d. Interpret the results.
a. H0: ? = 10 vs. H1: ? ? 10
b. z = 1.0
c. 0.1587 ? 2 = 0.3174.
d. Cannot reject H0 . Not enough evidence to say the mean is other than 10.
You might also like to view...
According to the text, one of "The Seven Deadly Sins of Business Selling" is a lack of pushiness.
Answer the following statement true (T) or false (F)
What is a legal caution about EAPs?
What will be an ideal response?
KRD Supplies Corporation provided the following information for the year
Beginning Balance-Work-in-Process Inventory $24,000 Ending Balance-Work-in-Process Inventory 58,000 Beginning Balance-Raw Materials Inventory 85,000 Ending Balance-Raw Materials Inventory 61,000 Purchases-Raw Materials 359,000 Direct Labor 470,000 Indirect Labor 21,000 Depreciation on Factory Plant and Equipment 24,000 Plant Utilities and Insurance 268,000 What was the amount of the manufacturing overhead costs? A) $313,000 B) $45,000 C) $292,000 D) $491,000
Pola wants to transfer a check to Quin. The check is defective if it
A. has been previously dishonored. B. has no irregularities on its face. C. is not overdue. D. is so complete that no element of negotiability is lacking.