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Days on the market are shown for the 36 most recent home sales in the city of Sonando Hills. 5 168 145 45 146 140 154 83 179 113 points 95 167 155 26 60 149 158 29 100 83 160 171 97 83 52 150 13 58 109 171 26 128 110 112 71 64 eBook Click here for the Excel Data File (a) Calculate the mean, median, and mode. (Round your answers to 2 decimal places.) Ask Mean 105.00 Median 109.00 Print Mode 83.00 References (b) Is the distribution skewed? O Yes, the distribution is skewed left. No, the distribution is symmetric. O Yes, the distribution is skewed right. (c) Is the mode a useful measure of center for this data set? O Yes O NoConsider the following sample data. SampLe A: 5, B, 11 SampLe B: 64, 67, 7e SampLe C: 1,015; 1,618; 1,621 (3) Find the mean and standard dev'ation for each sample. Sample A: SampLe 8: Sample C: Mean 8 67 1018 Sample Standard Deviation 3 3 91 (b) What does this exercise show about the standard deviation? The idea is to illustrate that the standard deviation is not a function of the value of the mean. 0 The idea is to illustrate that the standard deviation is a function ofthe value of the mean. For each data set, answer the following questions. Data Set A: 6, 7, 8 Data Set 8: 4, 5, 6, 7, 8, 9, 18 Data Set C: 1, 2, 3, 4, 5, 6, 7, B, 9, 19, 11, 12, 13 Click here for the Excel Data File (a-c) Find the mean, sample standard deviationtreating the data as a sample, and the population standard deviationtreating the data as a population. (Round your answers to 4 decimal places.) Data Set A Data Set B Data Set C Mean 7 7 7 Sample Standard Deviation .0010 .1602 .8944 Population Standard Deviation .8164 2 .7416 (d) What does this exercise show? (You may select more than one answer. Click the box with a check mark for the correct answer and double click to empty the box for the wrong answer.) I] The sample standard deviation is larger than the population standard deviation for the same data set. D Samples can have similar means but different standard deviations. The sample standard deviation is smaller than the population standard deviation for the same data set. Samples can have different means but smaller standard deviations. The mean monthly rent of students at Oxnard University is $755 with a standard deviation of $190. (a) John's rent is $1,350. What is his standardized zscore? (Round your answer to 3 decimal places.) Z .131 (b) Is John's rent an outlier? O No Yes (c) How high would the rent have to be to qualify as an outlier? John's rent would have to be $ or higher to be considered an outlier. Convert each individual data value to a standardized z-score. a-1. Ages of airline passengers: x = 85, M = 49, 0 = 14 (Round your answer to 3 decimal places.) ? a-2. Is it an outlier? O No, this is an unusual observation. O No, this is not an outlier nor is it unusual. Yes, this is an outlier. b-1. FICO credit scores: x = 579, / = 711, o = 65 (Round your answer to 3 decimal places.) z b-2. Is it an outlier? O No, this is an unusual observation. O No, this is not an outlier nor is it unusual. O Yes, this is an outlier. c-1. Condo rental vacancy days: x = 26, M = 25, 0 = 6 (Round your answer to 3 decimal places.) Z c-2. Is it an outlier? No, this is not an outlier nor is it unusual. Yes, this is an outlier. O No, this is an unusual observation