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Problem 3: (20pts) A simple random sample of FICO credit rating scores was obtained, and the...
Problem 4: [3 pts) A simple random sample of FICO credit rating scores was obtained, and the sorted scores are listed below. Construct a boxplot and include the values of the minimum, Q1, Q2, Q3 and max. 664, 693, 698, 714, 751, 753, 779, 789, 802, 818, 834, 836
Listed below are amounts of strontium-90 (in millbecquerels, or mBq) in a simple random sample of baby teeth obtained from residents in a region born after 1979 Use the given data to construct a boxplot and identify the 5-number summary. 129 155 153 132 155 135 155 140 158 142 160 144 165 147 167 149 168 151 170 The 5-number summary isandall in mBq (Use ascending order. Type integers or decimals. Do not round.) Enter your answer in the...
Problem #4). A simple random sample of size n = 35 is obtained from the US population with mean = 75 and standard deviation, 0 = 10. First determine: ux, and of a. What is P(x > 80) Question 9 5 pts Problem #4). A simple random sample of size n = 35 is obtained from the US population with mean p= 75 and standard deviation, 0 = 10. First determine: pex, and ox b. What is P(72.4 sås 77.8)
Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Use the sample data to construct a 98% confidence interval estimate of the population standard deviation. 65 62 62 56 62 54 60 59 60 69 61 67 Click the icon to view the table of Chi-Square critical values. mi/h. The confidence interval estimate is mi/h (Round to one decimal place as needed.) Does the confidence...
Question 2: How do the average credit scores of people living in various cities in the US differ? The file Credit Score Data of 143 American cities is provided in Canvas. Construct a histogram Create a Five Summary Report Calculate Mean, Variance and Standard Deviation What conclusion can you reach concerning the average credit scores of people living in different American cities? City State Average Credit Score Detroit Mi 743 New York NY 762 Minneapolis MN 787 Hartford CT 774...