& Dashboard Events му In a sample of 20 patients, the age of onset of diabetes was recorded. The following data result.
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me This course Dashboard Events My Courses an Compute the mean and the standard deviation for the data. You may use you. 2 Mean: d out of Answer: 3 Standard deviation: ed out of Answer:
A Home Dashboard Events My Courses This course nformation Compute the five-number summary for the data. You may use your Fas question Min: Question 4 Not yet answered Marked out of 1.00 Answer: P Flag question Question 5 01: Not yet dout of Answer: 6 Med Answer
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Would the patient whose age of onset of diabetes is 5 years be considered an outlier? Use the 1.5 X IQR Rule and give a reason for your answer! Select one: a. No, because the value 5 is below the quantity Q1 - 1.5 XIQR. O b. No, because the value 5 is not below the quantity Q1-1,5 x IQR. O c.Yes, because the value 5 is below the quantity Q1 - 1.5 X IOR. O d. Yes, because it is very unusual for a 5-year old to develop diabetes.
The following chart shows the distribution of credit scores of U.S. consumers (Source: Equifax, January 2013) Percent of Commer 18 17 15 12 11 11 TO So Rang 500-549 550-90 300-490 600-609 750-797 700-749 200-50 Decide whether each statement is true or false. Also, give a reason for your decision: either a calculation or a verbal justification.
mail Youlube Maps IVILA O VIL Dashboard Events My Courses This course The distribution is skewed to the left. Select one: O a. True, since the distribution levels off to the left. O b. False, since the distribution is symmetric and bell-shaped. O c. False, since the distribution does not have outliers. O d. True, since the distribution levels off to the right. The mean and the standard deviation are the appropriate summary for the data. Select one: O a. False, since the distribution is "normal". O b. True, since the mean and standard deviation are easier to compute. O c. False, since the distribution is not roughly symmetric and not bell-shaped. O d. True, since the distribution is roughly symmetric and bell-shaped. The median credit score falls into the range 600-649. Select one: O a. False, since only 37% of values lie in that range or below it. O b. True, since the median is 649.5, which can be thought of lying just) in that range. O c False, since the median is 649.5. O d. True, since that range is in the middle of the overall score range
The third quartile is in the range 750-799. Select one: O a. False, since the 750-799 range covers only 18% of the distribution: 18% < 25%. O b. True, since if we add up the percentages in the 750-799 range and range above, we get 35%, which is more than 25%. O c. False, since the third quartile is 749.5, which is not in the range. O d. True, since if we add up all percentages except that of the 750-799 range, we get 82%, which is more than 75%.
Suppose the time is takes a garage to perform an oil change is normally distributed, with a mean of p=22 minutes and a standard deviation of g 6 minutes What proportion of oil changes will take between 20 and 25 minutes? Write your answer as a proportion and round to three decimal places. Answer What proportion of oil changes will take more than 28 minutes? Write your answer as a proportion and round to three decimal places. Answer
"What is the cutoff for the bottom 15% of the distribution? Round your answer to one decimal place, that is to the nearest ter Answer: Between which two values will the middle 90% of the distribution lie? Select one: O a. 14.3 and 29.7 minutes Ob 12.1 and 31.9 minutes 10.2 and 33.8 minutes O d. 17.0 and 27.0 minutes
The following data give the scores of ten students on a screening test (pretest) and the corresponding final test score (posttest). I (pretest) 39 22 49 45 33 | 2014 | 31 | 35 51 y (posttest) 84849282 78 77 7487 88 83
Compute the correlation coefficient and the coefficient of determination. Correl. Coeff.: Answer: Coeff. of Det: w Answer:
YouTube Maps MLA format & ML.. Rocky Mountain Co... o CampusPortal My Collection - Stat... Dashboard Events My Courses This course Find the equation of the regression line. Round all values to three decimal places, that is to the nearest thousandt Slope Answer: (y) Intercept Answer:
The following graph shows data for mileage and asking price of VW Touareg models. (Source: autotrader.com search 11/18/2010, 2005 2010 models, 75 miles from ZIP 92677.) VW Touareg Prices 560,000.00 $50,000.00 540,000.00 As linge 59000000 $20,000.00 $10,000.00 50.00 o C25173 OSE GOOO 10000 1000 130000 40000 Mike 20000 40000
What are the strength and direction of the association between mileage and asking price? Select one: O a. weak and positive O b. strong/moderate and negative O c. strong/moderate and positive O d. weak and negative Find the predicted asking price for a VW Touareg with 80,000 miles. Round your answer to the nearest the not include units in your answer. Answer: What is the real world interpretation of the slope of the regression line? Be as specific to the given situatio Interpretation: For every → increase, the • is predicted to • by What does the value of r2-0.632 indicate in the given situation?