A researcher takes a random sample of 10,000 children from a community. He followsthem for ten years to determine the effects of the MMR shot on autism. There were 2,700children who were not vaccinated with MMR. 63 children were diagnosed with an autismspectrum disorder. 48 children who were vaccinated with MMR developed autism.Calculate the relative risk.Calculate the odds ratio.Calculate the attributable risk proportion:Calculate the population attributable risk:Calculate the population attributable risk proportion:

Random sample = 10000There were 2700 children who were not vaccinated with MMR. 63 Children were…

Answered: A researcher takes a random sample of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Find the sample size required to estimate the percentage of statistics students who take their statistics course online. Assume that we want 95% confidence that proportion from the sample is within two percentage points of the true population percentage. Answer: Sample size n =
According to a report on consumer fraud and identity theft, 26% of all complaints for a year were for identity theft. In that year, Missouri had 938 complaints of identity theft out of 3400 consumer complaints. Does this data provide enough evidence to show that Missouri had a different proportion of identity theft than 26%? Test at the 10% level. State the hypotheses. Ho: p? v Ha: p? v Calculate the test statistic. Round to four decimal places. Calculate the standardized test statistic. Round to three decimal places. Z = Find the p-value. Round to four decimal places. p-value State your decision. O Since the p-value is less than .10, fail to reject Ho. O Since the p-value is greater than .10, fail to reject Ho. O Since the p-value is greater than .10, reject Ho. O Since the p-value is less than .10, reject Họ.
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A poll found that 59% of a sample of 1020 teens in a certain large country go online several times a day. (Treat this sample as a simple random sample.) Complete parts a through e below. Find the margin of error for this poll if we want 90% confidence in our estimate of the percent of teens in the country who go online several times a day. Explain what the margin of error means. If instead we need to be 95% confident, will the margin of error be larger or smaller? Explain. Find that margin of error.
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Beef Consumption. According to Food Consumption, Prices, and Expenditures, published by the U.S. Department of Agriculture, the mean consumption of beef per person in 2011 was 57.5 lb. A sample of 40 people taken this year yielded the data, in pounds, on last year’s beef consumption given on the WeissStats site. Use the technology of your choice to do the following. a. Obtain a normal probability plot, a boxplot, a histogram, and a stem-and-leaf diagram of the data on beef consumptions. b. Decide, at the 5% significance level, whether last year’s mean beef consumption is less than the 2011 mean of 57.5 lb. Apply the onemean t-test. c. The sample data contain four potential outliers: 0, 0, 0, and 13. Remove those four observations, repeat the hypothesis test in part (b), and compare your result with that obtained in part (b). d. Assuming that the four potential outliers are not recording errors, comment on the advisability of removing them from the sample data before performing the…
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We want to determine if the percent of home runs hit by left-handed batters is greater than that of right-handed batters. What type of test should be used? OTwo sample z-test OTwo sample t-test O Single sample z-test Single sample t-test

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