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To determine who is the most famous athlete of all time, a student thinks up a sample of some acquaintances and calls to ask their opinion. Was this a systematic sample, a haphazard sample, or a random sample?
A distribution with m = 35 and s = 8 is being standardized so that the new mean and standard deviation will be m = 50 and s = 10. In the new, standardized distribution, your score is X = 45. What was your score in the original distribution?
q1 a researcher suggests that male nurses earn more money than female nurses. a survey of 16 male and 20 female
Public Policy and Political Science The high cost of health care has forced some people to choose between medical treatment and other necessities such as food.
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.
What is the probability that a randomly chosen stock investor also invests in fixed income instruments? Round your answer to 2 decimal places.
use a x2 test of association to test the claim that in the given contingency table the row variable and the column
A random sample of 10 adult king crabs was collected, and 3 of them were found to be infected with the parasite.
What type of probability distribution will most likely be used to analyze the number of chocolate chip parts per cookie in the following problem?
We know that the population variance is 16. Estimate the mean number of admissions per 24-hour period with a 95% confidence interval.
Suppose that an e-business on the Internet receives an average of 5 orders per hour. Assume that the number of orders follows a Poisson process. What is the probability that up to one hour will elapse until two orders are received?
8500 is deposited into an account paying 8% annually, to provide four annual equal amount withdraws beginning in one year
It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot." What is the standard deviation for the sample proportion?
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