SCENARIO 12-13
Recent studies have found that American children are more obese than in the past. The amount of time children spent watching television has received much of the blame. A survey of 100 ten-yearolds revealed the following with regards to weights and average number of hours a day spent watching television. We are interested in testing whether the mean number of hours spent watching TV and weights are independent at 1% level of significance.
-Referring to Scenario 12-12,to test whether there is any relationship between average time spent watching TV and average time spent reading story books,the value of the measured test statistic is
A)-12.59
B)1.61
C)481.49
D)1,368.06

Question

SCENARIO 12-13
Recent studies have found that American children are more obese than in the past. The amount of time children spent watching television has received much of the blame. A survey of 100 ten-yearolds revealed the following with regards to weights and average number of hours a day spent watching television. We are interested in testing whether the mean number of hours spent watching TV and weights are independent at 1% level of significance. 
-Referring to Scenario 12-12,to test whether there is any relationship between average time spent watching TV and average time spent reading story books,the value of the measured test statistic is
A)-12.59 
B)1.61 
C)481.49 
D)1,368.06

Quizplus · Accepted Answer

The measured test statistic is the t-value, which is calculated as the difference between the sample means divided by the standard error of the difference. In this case, the t-value is 481.49.

SCENARIO 12-13 Recent Studies Have Found That American Children Are More Obese