Answer Happy

A study of 75 apple trees showed that the average number of apples per tree was 725. The standard deviation of the population is 100. Construct a 99% confidence interval for the mean number of apples per tree for all trees. 1. Make a sketch of the normal distribution curve. Label the mean at the center and indicate the areas in both tails. 2 2. For this problem, a. will you use the standard normal distribution (with critical value Za/2) or the t- student distribution (with critical value ta/2)? Select one. o The normal distribution (za/2). o The t-student distribution (ta/2). b. What is the critical value for a 99% confidence interval? C. Select the correct formula to be used to find the confidence interval. X - Za/2 <u <#+2a/2 X -ta/z @ <u<X+ta/2 3. Use the formula you selected above to find the confidence interval. Round appropriately to the nearest apple. O