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In each of the following scenarios, which would be larger, the mean or median, or would the mean and median be about the same? Provide reasoning--think about the shape of the histogram for the data and how the shape would affect the relationship between the mean and the median for each situation.
a. salaries at a law firm that has 10 experienced lawyers and 3 staff assistants
b. gas mileage obtained on this year's compact sport utility vehicles
c. the total amount of money of the change (coins) found in the pockets of male Penn State students.
Use a 5% significance level to test the claim that there appears to be a difference in the effectiveness of the two diets.
If a lot is known to contain 10% defective items, find out the probability that lot will be rejected? Accepted?
The average number of hours of sleep per night that a college freshman gets is 6.50 with a standard deviation of 1.80 hours. If 35 college freshmen are randomly chosen find the probability that they average at least seven hours of sleep per night.
The probability that more than 6 planes arrive in the next minute is _____.
Determine the standard error of students that favoured the move.
Estimate the 95% confidence interval for the proportion of the electorate that support this policy.
At 0.01 level of significance, is there evidence that mean price is higher at Whole Foods Market than at Fairyway supermarket? Interpret the meaning of p-value in (i).
Data in table represent number of consumer complaints against major U.S. airlines. If one complaint from table is arbitrarily chosen, determine the probability that it was filed against United Airlines.
Use the normal approximation to estimate the probability of at least one disaster in 25 missions.
The probability that student pilot passes the written test for a private pilot's license is 0.7. Find the probability that the student will pass the test: (a) on the third attempt (b) before the fourth attempt.
Compute the probability that debt for a randomly selected borrower with good credit is more than $18,000?
Create network for aerospace launch project below and determine its critical path.
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