Question

The accompanying table shows the maximum weights (in kilograms) for which one repetition of a half squat can be performed and the times (in seconds) to run a 10‐meter sprint for 12 international soccer players.

Maximum weight, x Time, y

1. Construct a 90% confidence interval for ?̅. (Round to two decimal places)

170	1.85
180	1.86
150	2.15
205	1.49
150	2.13
185	1.7
180	1.8
160	1.97
185	1.67
185	1.7
155	2.03
165	1.96

2. Construct a 90% confidence interval for ??. (Round to two decimal places)

3. Construct a scatter plot (x and y)

Answer 1

(3) The scatter plot of x (Maximum weight) and y (Time) is given below.