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60% of households say they would feel secure if they had $20,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had $20,000 in savings. Find the probability that the number that say they would feel secure is (a) exactly five, (b) more than five, and (c) at most five.
Estimate using three day weighted moving average. Estimate sales for the next day using a three-day weighted moving average where the weights
a box of candy contains 25 candy bars of which 10 contain peanuts and 15 do not contain peanuts. if you select five
a modified roulette wheel has 40 slots. one slot is 0 another is 00 and the others are numbered 1 through 38
what is the probability of tossing a coin 5 times and getting all
Canadians found that 58% were satisfied with the service provided by the dealer from which they bought their car. The sampling variability associated with these statistics is?
During the 2005 Major League Baseball season, Derrek Lee had a 0.335 batting average. Construct a binomial probability distribution for the number of successes (hits) for four official at bats during this season.
Consider a large population with a mean of 170 and standard deviation of 25. A random sample of size 36 is taken from the population. Calculate the standard error of the sampling distribution of this sample mean and round your answer to the hundre..
1.a researcher wishes to compare the effect of the rate of stepping on heart rate in a step-aerobics workout. a
Are demographic characteristics of community residents related to fear of crime and is the source of news and information about crime on the Gold Coast related community resident's fear of crime?
a random sample of 121 checking accounts at a bank showed an average daily balance of 280. the standard deviation of
please help - an aircraft manufacturing company is designing a new passenger seat.an aircraft manufacturing company is
Compute mean, median, mode, first and third quartile and compute the variance, standard deviation, range, interquartile range, coefficient of variation, standard error of the mean and Z scores.
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