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A survey with questions about student's gender and major produces the following data Male Female Math 10 3 Science 12 8 Humanity 25 11 Arts 15 7 Nursing 9 12 Let: F be the event of selecting a female student M of selecting a student who studies math A of selecting a student who studies arts N of selecting a student who studies nursing If one student is randomly selected, find the probability (the answers must be in percentage, %) P(A) = P(N/F) = P(F or N) =
1.a study was conducted to explore the relation between alcohol consumption and hypertension. 7400 nurses were surveyed
According to Example 12, a normal distribution with mean 115 and standard deviation 22 hun- dredths of an inch describes variation in female salmon growth in fresh water.
A small New England college has a total of 400 students.The Math SAT is required for admission, and the mean score of all 400 students is 620. The population standard deviation is found to be 60. The formula for a 95% confidence interval yields th..
After five years you refinance the mortgage for 25 years at a 5.75 percent annual interest rate. After you refinance, what is the new monthly payment
a) If $320 is budgeted for next week, what is the probability that the actual costs will exceed the budget?
What is the probability that the distance between any two soldiers will be more than (i) ½, (ii) 1/3, (iii) ¼ of a mile?
Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb
The meaning of the standard deviation, and any other relevant comments you would have if you were a member of the committee evaluating this study to determine if more money should be granted to these researchers.
Using a random sample of 100 workers, researchers calculate a 95% confidence interval for the average hourly wage earned by construction workers in the city of Boston. This interval they calculate is from $18 to $26.
Briefly discuss probability distributions. What is a normal distribution? Please provide a written example of how 'understanding distribution' can be an asset for any business project.
Find the probability taht exactly 6 are satisifed with the airlines. Find the probability that fewer than 4 are satisfied with the airlines. Find the probability that 5 or more are satisfied with the airlines. Find the probability that between 3 a..
Assume that the significance level is α=0.1. Use the given information to find the P-value and the critical value(s). The test statistic of z=1.95 is obtained when testing the claim that p>0.8.
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