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This past year, a Gallup poll surveyed 1228 households in the U.S about gun ownership. Of those surveyed, 435 said they had at least one gun in their home. Find and interpret the 95% confidence interval for the population proportion.
Assume Nick doesn't know how his received he suppose that all three states of nature are equally likely to occur. If Nick uses the equally likely criterion illustrate what decision would he make.
Find out the test statistic P-value, and critical value, and state the final conclusion. The mean IQ score of statistic professors is less than 120. Sample data: n = 46. Suppose that = 17, and the significance level is = 0.05.
Use the Rare Event Rule. Does the evidence support the claim?
In trying to estimate the amount of growth that took place in the trees recently planted by the county parks commission
Calculate the Average yield per acre, calculate the Standard deviation and explain the difference between a one sample and a two sample hypothesis test; provide an example of each.
State the Null and Alternative Hypotheses. Determine the test statistic. Determine and interpret the p-value
If a researcher decides to use multiple comparisons in a study with three conditions, what is the probability of a Type I error across these comparisons? Use the Bonferroni adjustment to determine the suggested alpha level.
Assume that this city has 1100 shoppers aged 12 to 14 years and 900 shoppers aged 15 to 17 years. Find the mean amount spent per person per month by shoppers aged 12 to 17 years in this city.
a random sample of 33 adult men had a mean weight of 182.5 pounds and a standard deviation of 22.5 pounds. find a 99
Convinving evidence at the .05 significance level to support the claim that the actual number of cards is an undergrads wallet is greater than 4.09. state the null and alternative hypothesis.
Which of the following would be an appropriate alternative hypothesis?
the salinity in the ocean is expressed in parts per thousand ppt. during november 2008 the mean salinity in a region of
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