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A Gallup poll in 2004 reports that 34% of American adults think that marijuana should be legal. What does this statistic tell you about Americans' support for legalizing marijuana?
Eight golfers were asked to submit their latest scores on their favorite golf courses. These golfers were each given a set of newly designed clubs.
Assume the probability of a tire blowout is 0.178% per 50,000 miles of use and that a person travels 15,000 miles per year in a car.
Given the following data on the number of pints of ice cream sod at a local ice cream store for a 6 period time frame.
In the construction of confidence intervals, if all other quantities are unchanged, an increase in the sample size will lead to a ____________ interval.
a bank wishes to estimate the mean credit card balance owed by its customers. the population standard deviation is
A student doing a project for a statistics class wants to estimate the difference between the mean number of music CDs owned by male and female students.
Should this standard change because the measure discriminates against men? Is the male challenge to the statute likely to be successful?
the company you work for has been tracking sales histories to forecast this coming years sales. over the last 9 years
A six-sided die is rolled 30 times and the numbers 1 through 6 appear as shown in the following frequency distribution. At the .10 significance level, can we conclude that the die is fair?
A sample of 16 patients in a doctors office showed that they had to wait an average of 43 minutes with a standard deviation of 8 minutes before they could see doctor. Provide a 99% confidence interval for the average waiting time for all of the pa..
In classifying hypertension, three categories are used: individuals whose systolic blood pressures are less than 140, those with blood pressures between 140 and 160. and those with blood pressures over 160.
1. in a statistical test of hypotheses we reject the null hypothesis at alpha ifa the p-value is smaller than alpha.b
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