Which of the following best describes a unimodal distribution in which the median is much larger than the mean? O Skewed Left O Symmetric O Skewed Right

A distribution has a mean of 9, a median of 9, and a mode of 9. What is the shape of this distribution? 1. Positively skewed 2. Negatively skewed 3. Perfectly symmetrical  4. None of the above

A researcher wanted to determine if carpeted or uncarpeted rooms contain more bacteria. The table shows the results for the number of bacteria per cubic foot for both types of rooms. A normal probability plot and boxplot indicate that the data are approximately normally distributed with no outliers. Do carpeted rooms have more bacteria than uncarpeted rooms at the a = 0.01 level of significance? Full data set O Carpeted 14.3 9.8 10.7 12.2 Uncarpeted 9.5 9.5 10.9 2.1 15 3 15.8 5.4 6.4 15.2 4.3 10.6 - X Student t-distribution Area in right tail t-Distribution Area in Right Tail Degrees of Freedom 0.25 0.20 0.15 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.0005 1.000 0.816 0.765 0.741 1.376 1.061 0.978 0.941 0.920 1.963 1.386 1.250 1.190 1.156 3.078 1.886 1.638 1.533 6.314 2.920 2.353 2.132 12.706 4.303 3.182 2.776 2.571 15.894 4.849 3.482 2.999 2.757 31.821 6.965 4.541 3.747 3.365 63.657 9.925 5.841 4.604 4.032 127.32 1 14.089 7453 5.598 318.309 636.619 31.599 12.924 8.610 6.869 22.327…

General Social Survey (GSS) 2006 collected the data of the number of people in each household in the U.S.   Question: Describe the shape of the distribution. Skewed to the left, or positively skewed Skewed to the left, or negatively skewed Not skewed, or (almost) symmetrical Skewed to the right, or positively skewed Skewed to the right, or negatively skewed

The accompanying histogram shows the lengths of hospital stays​ (in days) for all female patients admitted to a certain hospital during one year with a primary diagnosis of acute myocardial infarction​ (heart attack). Complete parts​ (a) through​ (c) below.   ​a) From the​ histogram, determine whether the mean or median is larger. Explain.     A. Because the distribution is nearly symmetric​, the mean is expected to be larger than the median.   B. Because the distribution is nearly symmetric​, the mean is expected to be about the same as the median.   C. Because the distribution is skewed to the high end​, the mean is expected to be larger than the median.   D. Because the distribution is skewed to the high end​, the mean is expected to be smaller than the median.   E. Because the distribution is skewed to the low end​, the mean is expected to be larger than the median.   F. Because the distribution is skewed to the low end​, the mean is expected to be…

8. What Is the center of {0.1, 0.3, 0.02, 0.09, 0.4, 0.05, 0.26}? Is it the mean or the median? Which is more appropriate to use? O 0.4 0.2 0.1 0.3 New version available! (3.0.227) esc 24 4. tab b. W