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1. Find the probability that a standard normal random variable will assume a value between:
a. z = 1.5 and z = .75
b. Greater than 1.25
c. Find a z such that 70% of the area is above that value.
2. In recent years, the use of the telephone as a data collection instrument for opinion polls has been steadily increasing. However, one of the major factors affecting the extent to which the telephone can be used is the refusal rate that is, the percentage of eligible subjects actually contacted who refuse to take part in the poll. Suppose that past records indicate a refusal rate of 20% in a large city. What is the probability that out of 15 people:
a. No one refuses to take part in the poll?
b. Exactly 2 refuse to take part in the poll?
c. At most three refuse to take part in the poll?
d. What is the mean and standard deviation of those who refuse to take part in the poll?
In this problem I am having an issue trying to determine what equation to use to solve. Is this a one or two way ANOVA or should I just use a z-test to solve?
Based on your analysis, how is the new bottling process working?
Create the table for frequency distribution that has 16 class intervals of width 1 inch. Utilize 61.5 inches as lower limit of first interval and 62.5 as upper limit.
Research the topic of Job Satisfaction using the Business Source Premier Database (EBSCO) and/or the ABI Inform Global database from the Internet.
What is the probability that in a sample of 10 pieces: 5 or more will be defective?
The Bunte Auto Repair Shop received a shipment of four carburetors. One is known to be defective. If two are selected at random and tested.
What are the 3 measures of dispersion/variation in a dataset? How do you calculate each of these 3 measures?
Use regression analysis to develop an estimated regression equation that could be used to predict the value score given the price of the car.
Compute the mean and standard deviation of the scores and use these for the calculations below. Show your calculations on the back of his page.
What reasons for complaints do you think the hotel should focus on if it wants to reduce the number of complaints? Describe.
Please discuss an application of ANOVA that might be undertaken in a workplace. What are the 3 or more treatments? What is the response variable?
Costs of Television: Listed below are prices (in dollars) and quality rating scores of rear-projection televisions. All of the televisions have screen sizes of 55 or 56 inches.
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