Quizzes - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University

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11/28/23, 12:11 AM Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP… 2/11 Question 2 1 / 1 point For each of the following variables, identify the type of variable (categorical vs. numeric). (I) Income tax brackets (e.g. Below $8925, $8925-36250, $36250-$87850, etc) (II) Temperature (in Fahrenheit) of an office building Question 3 1 / 1 point 1) (I) Ordinal , and (II) Nominal 2) (I) Ordinal , and (II) Interval 3) (I) Nominal , and (II) Ratio 4) (I) Ratio , and (II) Interval 5) (I) Ratio , and (II) Ratio 1) (I) Categorical , and (II) Categorical 2) There is no correct match. 3) (I) Numeric , and (II) Numeric 4) (I) Numeric , and (II) Categorical 5) (I) Categorical , and (II) Numeric

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11/28/23, 12:11 AM Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&inP… 7/11 Question 9 1 / 1 point If the scores per round of golfers on the PGA tour are approximately normally distributed with mean 65.9 and standard deviation 1.73, what is the probability that a randomly chosen golfer's score is below 65 strokes? Hide ques±on 9 feedback Question 10 1 / 1 point A certain list of movies were chosen from lists of recent Academy Award Best Picture winners, highest grossing movies, series movies (e.g. the Harry Potter series, the Spiderman series), and from the Sundance Film Festival and are being analyzed. The mean box office gross was $138.64 million with a standard deviation of $11.2526 million. Given this information, 98.49% of movies grossed greater than how much money (in millions)? Assume the distribution is approximately normal. 1) 0.1685 2) 0.6985 3) We do not have enough information to calculate the value. 4) 0.3015 5) 0.8315 Correct!

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11/28/23, 12:11 AM Aidan Veloso - STAT-2160-950 - Business Statistics - Elearning - Western Michigan University https://elearning.wmich.edu/d2l/lms/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=566919&isprv=&qi=504953&cfql=0&dnb=0&fromQB=0&in… 10/11 According to a survey conducted by Deloitte in 2017, 0.4532 of U.S. smartphone owners have made an effort to limit their phone use in the past. In a sample of 90 randomly selected U.S. smartphone owners, what is the probability that between 37 and 39 (inclusively) will have attempted to limit their cell phone use in the past? Hide ques±on 13 feedback Question 14 1 / 1 point Fill in the blanks. Suppose the probability at a light bulb factory of a bulb being defective is 0.14. If a shipment of 127 bulbs is sent out, the number of defective bulbs in the shipment should be around __________, give or take __________. Assume each bulb is independent. 1) 0.6376 2) 0.7883 3) 0.1404 4) 0.2117 5) 0.0278 Correct! 1) 17.78 , 15.29 2) 127 , 3.9103