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It has been stated that 75% of the population have a smart phone. If you randomly choose 10 people, what is the probability that at least 9 people will say they have a smart phone?Please show your work for partial credit.
Part b Using the information from the previous problem, what is the probability that no more than 1 person will say they have a smart phone?
A) Resistant statistics should always be used. B) Resistant statistics should be used when the data is not bell-shaped. C) Sensitive statistics should be used when the data is not bell-shaped. D) Sensitive statistics should always be used. E) Resista..
If you have a population that has a small sample, but does not meet all of the criteria for the nonparametric test how can you tell what test to use?
a population has u100 and sigma20. if you select a single score from this populaton on the average how close woud it be
Think of your favorite casino game (craps, black-jack, roulette, etc) and analyze the probabilities of a few different outcomes.
If a group of 400 school children are selected at random, what is the probability that at most 70 children will miss school because of asthma?
a book was published entitled one million random digits. in it there are listed one million 1000000 digits each of
The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. Determine the cumulative distribution function of flange thickness.
Find the value of Z-score- standard normal distribution.Find out a value of the standard normal random variable z, call it z0.
Must the company replace old truck? If so which of new trunks must they use? Describe in detail.
test at the 0.01 level, was the mean time for the Delta visits significantly less than that for the British Airway visits? Identify and interpret the p-value for the test.
According to the Insurance Institute of America, a family of four spends between $400 and $3800 per year on all types of insurance. Suppose the money spent is uniformly distributed between these amounts.
Compare and contrast internal and external validity. Describe and give examples of research questions for which external validity is a primary concern.
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