Question

In a random sample of eight cell phones, the mean full retail price was $559.00 and the standard deviation was $226 00. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean Interpret the results o Identify the margin of error (Round to one decimal place as needed) Construct a 99% confidence interval for the population mean IA (Round to one decimal place as needed.) Interpret the results Select the correct choice below and fill in the answer box to complete your choice (Type an integer or a decimal. Do not round) O A It can be said that % of the population of cell phones have full retail prices (in dollars) that are between the intervals endpoints OB % of all random samples of eight people from the population of cell phones will have a mean full retail price in dollars) that is between the intervals endpoints OC with % confidence, it can be said that most coll phones in the population have full retail prices (in dollars) that are between the intervals endpoints OD With confidence, it can be said that the population mean full retail price of coll phones (in dollars) is between the intervals endpoints ext fo the fo Click to select your answer(s) matid ther ibutia FORCA P O

Answer 1

tator given = $559.00 n=8 S = $226.00 for ggole 270.01 Internal confidence دان Margin of Error (ME) ME = tapet xS To = 3.499 ME = 3.499 x 226 8 ME = 279.619 IME=279.6 one decimal. 100) 99-1. CI for ( * -ME, T +ME) (559 -279.6, PP 559+279.6) ( 279,387,838.619) (279.4, 838.6 one decimal Interpretation option (D) is true with (99% confidence it can be said that the Population full retail price of cell phones (in dolless) is between the interval's endpoints, mean