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save#question4738698_8 D Paused Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy Express, The Fudge Company, Karmel Corn, and Rocky Mountain Chocolate Factory. Startup costs (in thousands of dollars) for a random sample of candy stores are given below. Assume that the population of x values has an approximately normal distribution. 99 171 126 92 75 94 116 100 85 (a) Use a calculator with mean and sample standard deviation keys to find the sample mean startup cost x and sample standard deviation s. (Round your answers to one decimal place.) thousand dollars thousand dollars (b) Find a 90% confidence interval for the population average startup costs / for candy store franchises. (Round your answers to one decimal place.). lower limit thousand dollars upper limit thousand dollars Submit Answer 12. [-/1 Points] DETAILS BBUNDERSTAT12 7.2.017.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Over the past several months, an adult patient has been treated for tetany (severe muscle spasms). This condition is associated with an average total calcium level below 6 mg/dl. Recently, the perient's total calcium tests gave the following readings (in my.dl). Assume that the population of x values has an approximately normal distribution. 9.30 9.60 10.30 9.50 9.40 9.80 10.00 9190 11 20 12.10 LO USE SALT (a) Use a calculator with mean and sample standard deviation keys to find the sample mean reading > and the sample standard deviation s. (Round your answers to four decimal places.) maldi 5:46 PM