Page 12 of 17 Use the following information for questions 22-24 (True data) As the heart of a promotional campaign, the Nabisco Company announced a Chips NAL "1000 Chips Challenge," claiming that every 18-ounce bag of their Chips Ahoy! cookies contained at least 1000 chocolate chips. Dedicated statistics students Boxplot of NumChips (with 95% t-confidence interval for the mean) at the Air Force Academy randomly selected bags of cookies and counted the chocolate chips. Descriptive Statistics N . Mean StDev SE Mean 95% Cl for u 16 1238.2 94.3 23.6 (1187.9, 1288.4) u: population mean of NumChips 22.(4) Briefly explain the meaning of the "boxed in" 1100 1150 1200 1250 1300 1350 1400 1450 information above [i.e., (1187.9, 1288.4)]. NumChips 23.(1/2) The boxed-in information above provides a measure of. . . (highlight your answer.) a. sampling error only. b. nonsampling error only. c. total error (sampling error and nonsampling error combined). 24.(2) Would most statisticians feel comfortable working with this confidence interval? a. Yes b. No Briefly explain your answer. Comment on what would cause you to reverse your decision. DII DD F3 F4 F 5 F6 F7 F 8 F9Page 13 of 1 those who say that they do care about politics?" We set a = 0.05. 25.(3) We see that the results of the hypothesis test show p = 0.010. Using numbers from the above printout, briefly explain the meaning of this p-value. (Merely describing how the p-value is used to draw a conclusion for the test is not sufficient.) 26.(3) What is the relationship between the "margin of error" and the confidence interval? (All that apply.) The margin of error is... the likely difference between the sample mean and the sample standard deviation for a given sample size. 10 always half the width of the confidence interval. the maximum difference between the sample statistic and the corresponding population parameter (with a specified level of confidence). 27.(1/2) The standard error of the mean refers to the standard deviation of the... a. sample. population. C. proportion. d. sampling distribution. e. normal distribution. 28.(1/2) Which is almost always most important in determining the magnitude of sampling error? a. The size of the population. b. The absolute size of the sample. c. The size of the sample relative to the size of the population. 13Page