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The GRE combined scores for students applying to an engineering school's Graduate Program are normally distributed with a mean of 1500 and a standard deviation of 100.
(a) An applicant needs a minimum combined score of 1400 to gain admission.
(b) What percentage of applicants have combined GRE scores between 1200 and
(c) The Dean of Engineering wants to change the minimum combined GRE score What percentage of applicants meet or exceed the minimum qualification ? Needed to gain admission, so that only 33% of applicants are eligible. What should the new minimum score be?
Calculate the margin of error that would be used to determine a 95% confidence interval for the mean pulse rate of all women.
Ordinary regression line where the spread is assumed to be constant in all parts of the line. In practice, plot yi vs. xi from the sample and see what type of relation exists. When can a ratio estimator be used?
The second plane's speed is also normally distributed with mean and standard deviation 500and 10,respectively. What is the probability that plane 2 did not catch up to plane one after two hours of flight?
If there is a significant difference between proportions of females and males who plan to vote for the incumbent president. what is the p value of the test.
Do these data provide sufficient evidence to indicate that the mean for the population is less than 8 hours? assume a normally distributed population.
Explain how the marketing analyst can use independent samples to collect the data.
The correlation between hours spent in the course and exam grades is .8. what percent f variation in exam grades can be explained by hours spent in the course?
A consumer organization estimates that over a 1-year period 17 percent of cars will require to be repaired once, 7 percent will need repairs twice, and 4 percent will require three or more repairs. What is the probability that a car chosen at rand..
Compute the probability of receiving three calls in a 5-minute interval of time. Compute the probability of receiving exactly 10 calls in 15 minutes.
Using the dataset, produce a graph of per capita GDP for Argentina, China, and Canada from 1965 to 1995. Is inequality between these countries increasing?
Which of the variables below do you think will be roughly normally distributed? Please select all that apply.
What is the price of an extra dollar of c1 in terms of c2 and what is the equilibrium price? Output and profits of the low cost gold mine?
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