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A major issue facing many states is whether to legalize casino gambling. Suppose the governor 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 governor 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. Assuming that a significance level of 0.05 is used, what conclusion should the governor reach based on these sample data?
State the appropriate null and alternative hypothesis for testing the standard regarding the mean value. Test the hypothesis using a significance level equal to 0.05. What assumption will be required?
a survey has revealed that 75 of all college students study. it is also known that 85 of all students who study will
How large a sample of one-bedroom apartments would be needed to estimate the mean within $20 with 90% confidence?
the relationship assumed linear between yield of bourbon y and aging time x was studied by observing yields yi from
Mean 504 and standard deviation 111. A sample of size 1000 is obtained from this population. What is the mean of the sampling distribution of the sample mean?
Then comment on the effectiveness of the presentation: Were the frequency distributions used effectively to report the results? Why or why not?
Auditor wants to be within 7% of true proportion when using 95% confidence level. How many files should auditor sample?
A national water expert is interested in determining the average amount of lead (in ppm, parts per million) that is found in the Houston, Texas drinking water. To conduct her research, she considers only those residential households within the city l..
Formulate the hypotheses that can be used to test the validity of the brokerage firm executive's claim.
State the null and the alternative hypotheses. Using the p-value approach, test to determine whether or not the mean age of all employees is significantly more than 40 years.
explain how measure of central tendency and measure of dispersion are complementary to each other to describe the
city officials in fort lauderdale florida are trying to decide whether to evacuate coastal residents in anticipation of
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