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A random sample of size n=100 is obtained from a population with a proportion p=0.52
a. What is the sampling distribution for the sample proportion p?
b. Calculate P( p > 0.54)
statistics released by the national highway traffic safety administration and the national safety council show that on
An estimate is needed of the mean acreage of farms in Manitoba, Canada. The estimate should be correct to within 100 acres with probability 0.95. A preliminary study suggests that 500 acres is a reasonable guess for the standard deviation of farm ..
winning the jackpot in a particular lottery requires that you select the correct four numbers between 1 and 33 and in a
Standard deviation of 5. suppose 100 golfers played the course today. Find the probability that the average score of the 100 golfers exceeded 74.
A student with a 3.5 to 4 grade point average who took standardized test is randomly selected. Determine the probability that students test score is less than 36.
The confidence interval for proportion of adults who approve of the candidate is ____
some commercial airplanes recirculate approximately 50 of the cabin air in order to increase fuel efficiency. the
Construct a 99% confidence interval for the mean bill of a customer. A) [31.355, 32.645] B) [29.747, 34.253] C) [29.421, 34.579] D) [29,740, 34.260] E) [28.570, 35.570].
11% needed to be serviced once, 5% twice, 4% three times, and none required more than three repairs. what are the expected no of repairs per year.
Suppose that x is normally distributed with a mean of 50 and a standard deviation of 15. What is P(34.55 ≤ x ≤ 72.95)?
The scores of the GRE exam are transformed so they have a mean of 500 and standard deviation of 100. The scores are known to be normally distributed. What is the percentage of students that score below 750?
A study conducted by the research department of a pharmaceutical company claims that the annual spending (per person) for prescription drugs for allergy relief is greater than or equal to the annual spending (per person) for non-prescription aller..
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