Mathematics, 16.11.2020 16:40 katey6934
Darius designed a billboard. The billboard is 480 inches long by 144 inches high. Darius uses a computer to design the billboard. Determine the unknown dimension for the computer design that maintains exactly the same shape. If the length is 12 inches, what is the height? *
Answers: 3
Mathematics, 21.06.2019 21:00
Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?
Answers: 2
Mathematics, 22.06.2019 00:00
Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64
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Mathematics, 22.06.2019 00:00
(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ě…). 2b. find the sample variance of x. find the variance of x ě…. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (îľ). 2d. test the hypothesis that îľ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?
Answers: 2
Darius designed a billboard. The billboard is 480 inches long by 144 inches high. Darius uses a comp...
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