TABLE 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.
-True or False: Referring to Table 12-13,the test is always a one-tail test.

Question

TABLE 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. 
-True or False: Referring to Table 12-13,the test is always a one-tail test.

Quizplus · Accepted Answer

Table 12-13 shows that the test is always a one-tail test because the critical value is always found in the upper or lower tail of the distribution.

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