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A bank manager recorded the number of hours taken to accomplish a particular task. He got the data below. Hours:10, 11, 12, 13, 14, 15, 16, 17, 18. Number of Employees: 2, 4, 6, 8, 10, 12, 14, 16, 18. Find the coefficient of correlation(r).
In other words, explain why, all else being equal, as sample size increases the likelihood of finding a statistically significant relationship increases.
If a six appears for the third time, the turn of the player ends without moving the token. Determine the sample space of one such throw and determine the probability for each event.
A rental agent claims that the mean monthly rent,u, for apartments on the east side of town is less than$725 . A random sample of 13 monthly rents for apartments on the east side has a mean of$714
A committe studying employer-employee relations proposed that a rating system be adopted. Each employee would rate his or her inmediate supervisor and in turn the supervisor would rate each employee.
According to Bienayme-Chebyshev rule, what percentages of these funds are likely to be within ±2 standard deviation of mean?
Assume that the mean parameter θ for the RV L is unknown. To estimate it, a random sample of n = 10 light bulbs is selected, and the lifetime of each light bulb is measured. Let X denote the number of those 10 sampled light bulbs that burn longer ..
Many vehicles used in space travel are constructed with redundant systems to protect the flight crew and their equipment. Find the probability that this shuttle component functions successfully if n = 2.
The number of cars passing over a certain bridge between 11pm and midnight has a Poisson density with lambda = 4. In what proportion of nights would you expect exactly one car to pass over the bridge during this time?
Security B has an expected return of 12 percent, a standard deviation of returns of 10 percent, a correlation with the market of 0.7 and a beta coefficient of 1.0.
with sample standard deviation s=0.6. Use a 5% level of significance to test the claim that the drug has changed(either way) the mean pH level of the blood.
Find the probability that a customer with 2 or more late payments will actually default on his payments and, in light of this probability, criticize the manager's credit plan.
Describe what type of control chart you can use and how do you calculate the control limits (provide formula) to check if the calculate the control limits in this organization is in control.
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