1 0 0 The following data are the amounts that a sample of 15 customers spent for lunch ($) at a fast-food restaurant. Co

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1 0 0 The Following Data Are The Amounts That A Sample Of 15 Customers Spent For Lunch At A Fast Food Restaurant Co 1 (28.17 KiB) Viewed 42 times

1 0 0 The following data are the amounts that a sample of 15 customers spent for lunch ($) at a fast-food restaurant. Complete parts (a) through (d) below. 7,46 6.31 5.83 6.52 8.40 9.43 7.14 6.79 5.85 4.92 6.53 5.52 7.91 8.25 9.06 OC. The mean amounts in dollars spent for lunch at the fast-food restaurant of 95% of all samples of the same size are contained in the interval. D. 95% of the sample data fall between the limits of this confidence interval. c. What assumption must you make about the population distribution in order to construct the confidence interval estimate in (a)? A. The population distribution is normally distributed. OB. The population distribution is skewed left. OC. The population distribution is skewed right. OD. The population distribution is uniformly distributed. d. Do you think that the assumption needed in order to construct the confidence interval estimate in (a) is valid? Explain. The assumption is reasonable for n-5 since the sample size is at least 30.