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1. How does sample size affect the interpretation of survey results?
2. Distinguish between probability and nonprobability sampling techniques. What are the implications of each?
3. Distinguish between haphazard and quota sampling.
Statistics and Probability, Statistics
You have 100 coins, and 99 of them are fair (equal probability of heads or tails). One of them is weighted and has a 90% probability of landing on heads. You randomly choose one of the 100 coins. Find the probability tha ...
One of your customers has just made a purchase in the amount of $19,200. You have agreed to payments of $335 per month and will charge a monthly interest rate of 1.11 percent. How many months will it take for the account ...
An independent-measures study has one sample with n = 10 and a second sample with n = 15 to compare two experimental treatments. What is the df value for the t statistic for this study?
A statistics student has collected data from a random sample of 20 college students at his school. He collected data on many variables including GPA (grade point average) and how many hours per week they play video games ...
Assume that showing a car is a Bernoulli trial, and each time she shows a car, there is a probability of 0.15 that the customer will buy the car. The saleswoman has a goal of selling at least one car a week. 1) How many ...
Doctoral assistant ships of Ph.D students 50% have paid assistant ships. a random sample of n=200 students is chosen.. based on this sample and using the properties of the binomial distribution, what is the approximate s ...
Suppose you sell a fixed asset for $121,000 when it's book value is $147,000. If your company's marginal tax rate is 35%, what will be the effect on cash flows of this sale (i.e., what will be the after-tax cash flow of ...
1) Explain the meaning of the following terms: Location Quotient Coefficient of Specialization Coefficient of Localization 2) Explain and contrast the z-score and the coefficient of variation. 3) Define and describe the ...
The critical boundaries (Zcrit) for a hypothesis test are z = +1.96 and z = -1.96. If the z-score for the sample data is z = -1.90, then what is the correct statistical decision? A) Reject H1 B) Fail to reject H1 C) Re ...
According to the center for Disease Control, the mean total cholesterol for men between the ages of 20-29 is 180 milligrams per deciliter with a standard deviation of 36.2. A healthy total cholesterol level is less than ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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