Please zoom with your browswer (under file or settlings). Baseball teams in Leau
ID: 3240967 • Letter: P
Question
Please zoom with your browswer (under file or settlings).
Baseball teams in Leauge 1 play their games with a rule that they believe produces more runs and generates more interest among fans. The data shown below include the average numbers of runs scored par game by Leauge 1 and Leauge 2 terms for the final seven games of the most recent season. Complete parts a though d. a) Create an appropriate display of these data. Choose the correct answer below: b. With a 99% confidence interval estimate the mean number of scored in Leauge 1 games. Based on these data the mean number of runs scored by League 1 teams is between and with 99% confidence. (Use ascending order Round to two decimal place as needed.) c) With a 99% confident interval, estimate the number of run scored in League 2 games Based on these data the mean number of runs scored by League 2 teams is between and with 99% confidence (Use ascending order Round to two decimal places as needed.) d) Explain why you should not use two separate confidence intervals to decide whether two leagues differ in average number of runs scored. Choose the correct answer below. A. It is okay to use two separate confidence intervals. B. Using two different confidence intervals adds the variances instead of the standard deviations. C. Using two different confidence intervals adds the standard deviations instead of the variances.Explanation / Answer
The statistical software output for confidence intervals are:
One sample T confidence interval:
: Mean of variable
99% confidence interval results:
a) Graph C
b) 8.73 and 11.31
c) 7.39 and 13.41
d) Option B
Variable Sample Mean Std. Err. DF L. Limit U. Limit League 1 10.016667 0.31980897 5 8.7271461 11.306187 League 2 10.4 0.74699398 5 7.3880016 13.411998