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A major issue facing many states is whether to legalize casino gambling. Suppose the govenor of one state believes that more than 55% of the state's registered voters would favor some form of legal casino gambling. However before backing a proposal to allow such gambling, the govenor has instructed his aides to conduct a statistical test on the issue. To do this, the aides have hired a consulting firm to survey a simple random sample of 300 voters in the state. Of these 300 voters, 175 actually favored legalized gambling.
1: State the appropriate null and alternative hypotheses.2: Assuming that a significance level of 0.05 is used, what conclusion should the governor reach based upon these samples data?
To get the best deal for CD player, Jessica called eight appliance stores and asked the cast of a specific model. The prices she quoted are listed below. Show all work. Compute the standard deviation.
Compute the appropriate Test Statistic to test null hypothesis that mean of population is 4.3 against alternative hypothesis μ ≠ 4.3.
Testing for population mean - What happens as you use different levels of significance? Different values of the standard deviation?
A study to see how well marital dissolution was predicted by the personality scores of husbands and wives was published in the Journal of Personality and Social Psychology.
The incubation time for Rhode Island Red chicks is normally distributed with a mean of 21 days and standard deviation of approximately 1 day.
There are three flight phases. At α = 0.05, is the cockpit noise level independent of flight phase?
The least squares simple linear regression line minimizes the sum of the vertical deviations between the line and the data points.
USA Today reported that 11% of all books sold are of the romance genre. If a local bookstore sells 316 books on a given day, what is the probability that
Find the probability of exactly 6 Mexican-Americans among 12 jurors.
A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek.
One flight daily to a certain destination. The following information shows the probability distribution of late arrivals for that flight in the past month:
She then selects a sample of 102 football players and finds that their average math SAT is 460. Use alpha =.01 to perform the appropriate hypothesis test.
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