mylab.pearson.com/Student/PlayerTest.aspx?testld=239405706¢erwin=yes GZ Math 159-14 Spring 2022 JOU HAN HUANG 03/09/22 9:35 PM Quiz: Chapter 6 Quiz Question 6 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Resume later Submit quiz Assume the readings on thermometers are normally distributed with a mean of 0 C and a standard deviation of 1.00 C. Find the probability that a randomly selected thermometer reads between - 1.95 and - 0.45 and draw a sketch of the region. Click to view page 1 of the table. Click to view page 2 of the table. Sketch the region. Choose the correct graph below. O A . O B. O C. & -1.95 -0.45 -1.95 -0.45 -1.95 -0.45 The probability is (Round to four decimal places as needed.) X More Statcrunch Next6 mylab.pearson.com/Student/PlayerTest.aspx7testld=239405706¢erwin=yes E Math 159-14 Spring 2022 JOU HAN HUANG 03/09/22 9:35 PM This quiz: 10 point(s) possible This question: 1 point(s) possible Quiz: Chapter 6 Quiz Question 7 of 10 Submit quiz Assume a population of 44. 48, 50, and 55. Assume that samples of size n = 2 are randomly selected with replacement from the population. Listed below are the sixteen different samples. Complete parts (a) through (c), 44,44 44.48 44.50 44,55 48,44 48,48 48.50 48,55 50,44 50.48 50.50 50.55 55.44 55.48 55.50 55.55 [El a. Find the median of each of the sixteen samples, then summarize the sampling distribution of the medians in the format of a table representing the probability distribution of the distinct median values. Use asoending order of the sample medians. Sample Median Probability Sample Median Probability l 'v | v (Type integers or simplied fractions Use ascending order of the sample medians.) b. Compare the population median to the mean of the sample medians. Choose the oorrect answer below. O A. The population median is not equal to the mean of the sample medians (it is also not half or double the mean of the sample medians). O B. The population median is equal to the mean of the sample medians. O C. The population median is equal to double the mean of the sample medians, O D. The population median is equal to half of the mean of the sample medians. c. Do the sample medians target the value of the population median? In general, do sample medians make unbiased estimators of population medians? Why or why not? 0 A. The sample medians do not target the population median, so sample medians are unbiased estimators, because the mean of the sample medians does not equal the population median. O B. The sample medians target the population median, so sample medians are unbiased estimators, because the mean of the sample medians equals the population median. l i H -i ll -' l I" H f- H V- ll '- H (m H l Statcrunch m 6 mylab.pearson.com/Student/PlayerTest.aspx7testld=239405706¢erwin=yes E Math 159-14 Spring 2022 JOU HAN HUANG 03/09/22 9:35 PM This quiz: 10 point(s) possible QUIZ: Chapter 6 Qu'z GueStion 7 0f 10 This question: 1 point(s) possible Submit quiz Assume a population of 44. 48, 50, and 55. Assume that samples of size n = 2 are randomly selected with replacement from the population. Listed below are the sixteen different samples. Complete parts (a) through (c), 44,44 44.48 44.50 44,55 48,44 48,48 48.50 48,55 :11 50,44 50.48 50.50 50.55 55.44 55.48 55.50 55.55 I!!!