We wish to construct a 90% confidence interval for the population mean weight of newborn elephant calves. A sample of forty-nine weights of newborn elephants are collected. The sample mean is 254.148 pounds and a sample standard deviation of 13.265 pounds. a. Complete the following for the necessary statistics. i. How many places are your statistics rounded to?? ii. Fill in the blank for the following statistics and s iii. Which of the following statsitcs listed is the point estimate?? b. Verify the requirements for the confidence interval i. Which test should be used to verify the requirements? Select an answer ii. Has the requirements for the test met?? c. What is the sampling distribution (Select an answer n d. What are the two critical values? Round your answer to at least four decimal places right= e. What is the margin of error? Enter N/A if the margin of error does not exist. left E= f. What is the confidence interval for the population parameter? Lower bound: Upper bound: g. State the conclusion for the population parameter. We are and % confident that the population (Select an answer ✓is between

Please find the range, sample standard deviation, and interquartile range (IQR) of the following data set. 23 30 37 53 62 range sample standard deviation IQR = = 88 93 95 95 98 (Please enter an exact answer.) (Please show your answer to one decimal place.) (Please enter an exact answer.)

In the 1992 presidential election, Alaska's 40 election districts averaged 1993 votes per district for President Clinton. The standard deviation was 584. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. a. What is the distribution of X? X ~ N( b. Is 1993 a population mean or a sample mean? Select an answer v C. Find the probability that a randomly selected district had fewer than 2053 votes for President Clinton. d. Find the probability that a randomly selected district had between 2074 and 2208 votes for President Clinton. e. Find the 95th percentile for votes for President Clinton. Round your answer to the nearest whole number.

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