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a study of 35 golfers showed that their average on a particular course was 92. the standard deviation of the sample is 5. find the best point estimate of the mean. find the 95% condidence interval of the mean score for all golfers.
Statistics and Probability, Statistics
The probability that someone made a purchase at a store is 0.36. You randomly select 15 people who went to the store. The random variable x represents the number of people who made a purchase. a. Find the probability tha ...
A gambler plans to play the casino dice game called craps, and he plans to place a bet on the "pass line." Let A be the event of winning. Based on the rules used in almost all casinos, P(A) = 244/495. Describe the event ...
A quiz consists of 70 multiple choice? questions, each with five possible? answers, only one of which is correct. If a student guesses on each? question, what is the mean and standard deviation of the number of correct? ...
Question: A number of public policies related to alcohol consumption have been instituted over the past couple of decades in an attempt to limit the number of alcohol-related traffic fatalities. These policies include: • ...
What is the 99% confidence interval for a sample of 52 seat belts that have a mean length of 85.6 inches long and a standard deviation of 3.8 inches?
A researcher conducts a hypothesis test using a sample from an unknown population. If the t statistic has df = 35, how many individuals were in the sample?
A brewery pulls 905 bottles of beer to sample them for quality control . in the past there has been a 0.12 probability that a bottle of beer is defective. Assuming this trend continues, what is the probability that fewer ...
Last year Galaxy Corp had $350,000 of assets (which is equal to its total invested capital), $475,000 of sales, $30,250 of net income, and a debt-to-capital ratio of 40%. The new CFO believes the firm has excessive fixed ...
The J.O. Supplies Company buys calculators from a Korean supplier. The probability of a defective calculator is 20%. If 15 calculators are selected at random, what is the probability that less than 5 of the calculators w ...
Given a normally distributed random variable, X, with mean (μ) and standard deviation (σ) shown on the right, calculate P(a μ =15 s = 2 a =16 b =20 Given a normally distributed random variable, X, with mean (μ) and stand ...
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