Question
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 Table 11.13, the critical value of the test will be _________ 6.635 21.666 13.277 14.860
Explanation / Answer
Here in this case,
Degrees of freedom = (Row - 1)*(Column - 1) = 2*2 = 4
Level of significance = 0.01
Hence,
Critical value = 13.277
Option C