/L\\ Moving to another question will save this response. Question 2 of 12 QUEStlon 2 3 points Save Answer The Head of U0 Sport wanted to determine how many laps, on average, patrons swam each visit to the U0 Sport Aquatic Centre. He observed a random sample of 47 patrons, which revealed an average of 37.4 laps per visit to the Aquatic Centre. If it can be assumed, on the basis of previous data, that the standard deviation is 7.5 laps, construct a 99.5% confidence interval for the average number of laps patrons will swim per visit. State the lower limit (in laps) of this interval, correct to two decimal places. \\(UMJLIUII . u. . QueStlon 1 2 points Save Answer UQ wants to ensure that all their staff are in good health. Melinda, a human resource staff has been tasked to determine the true proportion of staff which are overweight in terms of their BMI. She wants to construct a confidence interval so that her estimate is within 0.15 on either side of the true proportion, with 80% level of confidence. Determine the number of observations needed. Note: Ensure that an appropriate value from the Ztable a that hand calculations are used to find the answer (i.e. do not use Kaddstat)