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- year-olds 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 12-13, suppose the value of the test statistic was 30.00 (which is not the correct value)and the critical value at 1% level of significance was 10.00 (which is not the correct value), which of the following conclusions would be correct?
A)We will not reject the null and conclude that mean number of hours spent watching TV and weights are independent.
B)We will reject the null and conclude that mean number of hours spent watching TV and weights are independent.
C)We will not reject the null and conclude that mean number of hours spent watching TV and weights are not independent.
D)We will reject the null and conclude that mean number of hours spent watching TV and weights are not independent.

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- year-olds 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 12-13, suppose the value of the test statistic was 30.00 (which is not the correct value)and the critical value at 1% level of significance was 10.00 (which is not the correct value), which of the following conclusions would be correct?
A)We will not reject the null and conclude that mean number of hours spent watching TV and weights are independent. 
B)We will reject the null and conclude that mean number of hours spent watching TV and weights are independent. 
C)We will not reject the null and conclude that mean number of hours spent watching TV and weights are not independent. 
D)We will reject the null and conclude that mean number of hours spent watching TV and weights are not independent.

Quizplus · Accepted Answer

If the test statistic exceeds the critical value, we reject the null hypothesis and conclude that the two variables are not independent. Since 30.00 exceeds 10.00 (which is not the correct value), we would reject the null and conclude that mean number of hours spent watching TV and weights are not independent. Therefore, option D is the correct choice. If the test statistic is larger than the critical value, we will reject the null hypothesis and conclude that the mean number of hours spent watching TV and weights are not independent.

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