Consider the following to answer the question(s) below:
A local cell phone provider wants to determine if the use of text messaging is independent of age. The following data has been collected from a random sample of customers.

-The value of the test statistic is
A) 92.2095.
B) 0.
C) 9.2104.
D) 11.0705.
E) 275.02.

Question

Consider the following to answer the question(s) below:
A local cell phone provider wants to determine if the use of text messaging is independent of age. The following data has been collected from a random sample of customers.
 
-The value of the test statistic is
A) 92.2095. 
B) 0. 
C) 9.2104. 
D) 11.0705. 
E) 275.02.

Quizplus · Accepted Answer

The test statistic is calculated as the difference between the sample mean and the hypothesized mean, divided by the standard deviation of the sample. In this case, the sample mean is 92.2095, the hypothesized mean is 0, and the standard deviation of the sample is 9.2104. Therefore, the test statistic is (92.2095 - 0) / 9.2104 = 92.2095.

Consider the Following to Answer the Question(s) Below