it/PlayerTest.aspx?testld=243508853¢erwin=yes Evelyn Gonzalez 10/18/226:20 PM i . This test: 15 point(s) possible . 2 (chpt 5, 6) Question 9 of 15 This question: 1 point(s) possible @3 Submit test Historical data show that customers who download music from a popular Web service spend approximately $22 per month, with a standard deviation of $3. Assume the spending follows the normal '6 probability distribution. Find the probability that a customer will spend at least $18 per month' How much (or more) do the top 10% of customers spend? 777777 , ,, 774E777 What is the probability that a customer will spend at least $18 per month? ' D (Round to four decimal places as needed.) How much do the top 10% of customers spend? l $i: (Round to the nearest cent as needed) Question 15 of 15 , This test: 1'5 pointls) posstble This question: 1 pomtls) pos ble Determine the margin of error for a condence interval to estimate the population mean with n = 39 and 5' a) 92% b) 96% c) 99% a Click the icon to view the cumulative probabilities for the standard normal distribution. a) With a 92% condence level, the margin of error is (Round to two decimal places as needed.) b) With a 96% condence level, the margin of error is (Round to two decimal places as needed) 9) With a 99% condence level, the margin of error is (Round to two decimal places as needed.) n/Student/PlayerTest.aspx?test|d=243508853¢erwin=yes Evelyn Gonzalez 10/18/22 6:32 PM CD This test: 15 point(s) possible Submit test xa 2 ' z E m ('3th 5, 6) Question 9 Of 15 > This question: 1 point(s) possible Historical data show that customers who download music from a popular Web service spend approximately $22 per month, with a standard deviation of $3. Assume the spending follows the normal '6 probability distribution. Find the probability that a customer will spend at least $18 per month. How much (or more) do the top 10% of customers spend? (-,~_> 7 What is the probability that a customer will spend at least $18 per month? (Round to four decimal places as needed ) How much do the top 10% of customers spend? $ (Round to the nearest cent as needed) arson.com/Student/PlayerTest.aspx?testld=243508853¢erwin=yes RVD Evelyn Gonzalez 10/18/22 6:32 PM Sanchez Exam 2 (chpt 5, 6) Question 14 of 15 This test: 15 point(s) possible This question: 1 point(s) possible Submit test n list K An airline tracks data on its flight arrivals. Over the past six months, 65 flights on one route arrived early, 170 arrived on time, 20 were late, and 25 were canceled. a. What is the probability that a flight is early? On time? Late? Canceled? b. Are these outcomes mutually exclusive? on 6 c. What is the probability that a flight is either early or on time? on 7 a. The probability that a flight is early is (Round to two decimal places as needed.) n 8 The probability that a flight is on time is (Round to two decimal places as needed.) on 9 The probability that a flight is late is. (Round to two decimal places as needed. The probability that a flight is canceled is on 10 (Round to two decimal places as needed.) b. Choose the correct answer below. The outcomes mutually exclusive, because of these outcomes can occur for each flight. ion 11 c. The probability that a flight is either early or on time is]. (Round to two decimal places as needed.) ion 12 tion 13 ion, 14 5.1.10 tion 15 Time Remaining: 00:35:45 NextQuestion 11 of 15 This test: 1.5 point(e') possible (63 This question: i pomt(s) possible ' Lauren drinks a variety of soft drinks. Over the past month, she has had 19 diet colas, 2 cans of lemonade, and 6 cans of root beer. :3. Given this history, what is the probability that her next drink will be a diet cola? Lemonade? Root beer? I). What denition of probability should be used to answer this question? a. The probability that her next drink will be a diet cola is (Round to two decimal places as needed.) The probability that her next drink will be a lemonade is 3. (Round to two decimal places as needed.) The probability that her next drink will be a root beer is (Round to two decimal places as needed.) b. Choose the correct answer below. 0 A. The subjective denition of probability 0 B. The classical denition of probability O C. The relative frequency denition of probability Student/PlayerTest.aspx?testld=243508853¢erwin=yes Evelyn Gonzalez 10/18/22 6:32 PM z Exam 2 (chpt 5, 6) Question 12 of 15 This test: 15 point(s) possible This question: 1 point(s) possible Submit test K The average price of a 42-in. television on an electronics store's website is $830. Assume the price of these televisions follows the normal distribution with a standard deviation of $140. Complete parts a through e. a. What is the probability that a randomly selected television from the site sells for less than $700? The probability is. Round to four decimal places as needed.) b. What is the probability that a randomly selected television from the site sells for between $400 and $500? The probability is. (Round to four decimal places as needed.) c. What is the probability that a randomly selected television from the site sells for between $950 and $1,050? The probability is. (Round to four decimal places as needed.) d. The price intervals in parts b and c are equal ($100). Why are the probabilities so different? The interval than the interval e. Suppose a couple is shopping on the electronics store's website for a new 42-in. television with a budget of $790. There are 14 42-inch televisions on the site. How many televisions are within their budget? television(s) (Round to the nearest whole number as needed.) Time Remaining: 00:35:55 Next