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A Travel Weekly International Air Transport Association survey asked business travelers about the purpose for their most recent business trip. 19% responded that it was for an internal company visit. Suppose 950 business travelers are randomly selected.
a. What is the probability that more than 25% of the business travelers say that the reason for their most recent business trip was an internal company visit?
b. What is the probability that between 15% and 20% of the business travelers say that the reason for their most recent business trip was an internal company visit?
c. What is the probability that between 133 and 171 of the business travelers say that the reason for their most recent business trip was an internal company visit
A survey found that 85% of women in a given city enjoy shopping online. Suppose you randomly selected 6 women from the city and ask them whether or not they enjoy shopping online. Find the probability that exactly 4 say they enjoy shopping online.
Following is based on information from Statistical abstract of the United States, Dec, 1992. Are A and B mutually exclusive?
Let's play a game. An urn contains five red, four green and one gold ball other than color, the balls are identical. You are blindfolded and allowed to pick a ball from the urn. Red pays $5, green pays $10 and gold pays $50.
In the real world, a given null hypothesis is false; but the collected data lead to the null hypothesis being accepted. That is, the data lead to a failure to reject the null hypothesis.
Each party's position must be statistically sound. Include as suitable graphs, computations, and statistical tests.
The moment generating function of normal distributed random variable ,Y, with mean and variance .derive the moment generating function of X=-3Y+4.what is the distribution of X? why?
Probability based on a random experiment - What is the probability of not randomly generating your cousin's telephone number?
Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect?
The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.500 inches.
What is the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor?
Of the adults in Jefferson County, 10% have had CPR training
How many of these new cardholders would you expect to default? What is the standard deviation?
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