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Create the following hypothesis need help for approprate tests ( independant t test /correlation/regression/anova) and stating the hypothesis
Use a four period moving average to forecast attendance at future baseball games. Historical records show the attendance at ten consecutive baseball games.
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According to Chebyshev’s theorem, the probability that any random variable assumes a value within 3 standard deviations of the mean is at least 8/9.
All trucks traveling on a major highway must stop at a weigh station. Trucks arrive at a rate of 200 per 8-hour day.
Calculate the average time it takes a plane to land and clear the runway once it has notified the airport that it is in the vicinity and wants to land.
Records show that the probability that a motorist will have an accident during the weekend and file a claim is 0.0005.
The table below provides data on the theoretical calculated and experimental test values of the vapor pressures for dibenzothiophene, a heterocyclloaromatic
Consider a seven-game world series between team A and B, where for each game P(A wins)=0.6
What is the difference between qualitative and quantitative data? Provide an example of each type.
Market Researchers, Inc. has been hired to perform a study to determine if the market for a new product will be good or poor.
Many times researchers preselect the value of alpha of .01 or .001. What are the factors that allow selection of either of those levels of significance?
State the null and alternative hypothesis for the following situations.
For a lottery having a payoff of 40,000 with probability p and -15,000 with probability (1-p), the decision maker.
An experiment was conducted to investigate the transition pressure of bismuth as a function of temperature
A researcher would like to determine whether an over-the-counter cold medication has an effect on mental alertness.
Suppose P(s1) = .4, P(s2) = .3, and P(s3) = .3. Which decision should Paul make using the expected utility approach?
A market research firm used a sample of individuals to SELFIII rate the purchase potential of a particular product before and after the individual
You are given the choice of three doors. Behind one is a new car and the others hide a barnyard animal for you to keep.
Eagle Outfitters is a chain of stores specializing in outdoor apparel and camping gear. It is considering a promotion that involves mailing discount coupons
According to a survey by the Administrative Management Society, one-half of US companies give employees 4 weeks of vacation.
A random sample of eight quarterback listed in The Sports Encyclopedia: Pro Football, gave the following information.
Assuming that they have this $10,000 currently invested in low yield market funds that at the end of 3 years will be worth $12,200.
The Internal Revenue Service (IRS) provides a toll-free help line for taxpayers to call in and get answers to questions as they prepare their tax returns
Suppose that family incomes in a town are normally distributed with a mean of $1,200 and a standard deviation of $600 per month.