四、 The weights of a random sample of cereal boxes that aresupposed to weigh 10 gram are listed here:5 7 6 12 9 12 8 11 4 16 (sample mean=9; samplevariance=14) 1. Estimate the variance of the entire population of cereal boxweights with 95% confidence. (10 分)

五、Studies suggest there are several detrimental effects of televisionviewing on children. One of the problems may be that watchingtelevision reduces the amount of physical exercise and causesobesity. A sample of five 10-year-old children was taken. Thenumber of overweight kilograms (y) to each child was recorded.In addition, the number of hours of television viewing per week(x) was also recorded. These data are listed in the followingtable: 1. Fill out the blank cells in the above table. Calculate the samplelinear regression line () and describe what the slope coefficienttells you about relationship between the two variables. (15 分)(Please first calculate)

四、 The weights of a random sample of cereal boxes that aresupposed to weigh 10 gram are listed here:5 7 6 12 9 12 8 11 4 16 (sample mean=9; samplevariance=14)
1. Estimate the variance of the entire population of cereal boxweights with 95% confidence. (10 分)

相關申論題

相關試卷

四 、 The weights of a random sample of cereal boxes that aresupposed to weigh 10 gram are listed here:5 7 6 12 9 12 8 11 4 16 (sample mean=9; samplevariance=14) 1. Estimate the variance of the entire population of cereal boxweights with 95% confidence. (10 分)

相關申論題

相關試卷

四、 The weights of a random sample of cereal boxes that aresupposed to weigh 10 gram are listed here:5 7 6 12 9 12 8 11 4 16 (sample mean=9; samplevariance=14)
1. Estimate the variance of the entire population of cereal boxweights with 95% confidence. (10 分)