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Question: A probability class has 30 students. As part of an assignment, each student losses a coin 200 times and records the number of heads. Approximately what is the chance that no student gets exactly 100 heads? The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
Based on casual observation, my sense is that out biggest shopper segment is established adults above 40 with a significant amount of annual disposable income.
Assume that another counselor decided to extend the aforementioned study by collecting data on 14 children. His study yielded the following results:
uppose we form a new random variable Z by performing a weighted average of the components of. -Find the values of the constants bI such that the variance of Z is minimized.
A group of 47 randomly selected students have a mean score of 20.2 with a standard deviation of 4.6 on a placement test. Construct a 90% confidence interval for the mean score, , of all students taking the test.
Suppose that you are conducting a survey of customer satisfaction regarding their cellular phone. If you called 11 households selected at random, what is the probability that:
Teen smoking. The Centers for Disease Control say that about 30% of high-school students smoke tobacco (down from a high of 38% in 1997).
question a researcher wishes to estimate the average amount of money that a person spends on lottery tickets per
What is the probability that a randomly chosen flashlight will give more than 100 hours of use? Given that a flashlight lasted over 100 hours, what is the conditional probability that it was a type 1 flashlight?
A basketball player makes 80% of his free throws. If he attempts eight free throws during the next game, what is the probability that he will make more than his average?
If you must estimate the population mean within 2 days, how many outside salespeople should you sample? Use the 90 percent confidence level.
If 30 samples of 100 items are tested for nonconformity, and 95 of the 3,000 items are defective, find the upper and lower control limits for a p -chart.
solve the following standard normal probabilities to five decimalsa. pz gt 0.68b. pz gt -1.56c. pzd. p-1.22e. p2.78 gt
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