Homework: Module 5C5: Addition and Multiplication Rules (Sup Save
TM
Score: 0 of 2 pts
6 of 12 (11 complete)
HW Score: 84%, 21 of 25 pts
S4.3.21 Assigned Media
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Incorrect:
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The following data lists the number of correct and wrong dosage amounts calculated by 37 physicians In a research experiment, a group of 20 physicians was given
bottles of epinephrine labeled with a concentration of "1 milligram in 1 milliliter solution and another group of 17 physicians was given bottles labeled with a ratio of 1
milliliter of a 1:1000 solution." If one of the physicians is randomly selected, what is the probability of getting one who calculated the dose correctly? Is that probability
as high as it should be?
Correct Dosage Calculation
Wrong Dosage Calculation
Concentration Label
15
5
("1 milligram in 1 milliliter solution")
Ratio Label
14
("1 milliliter of a 1:1000 solution")
3
P(physician calculated the dose correctly) =
(Round to three decimal places as needed)

Find the solution of each of the following.

(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?

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot