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A random sample of 400 college students was selected and 120 of them had at least one motor vehicle accident in the previous two years. A random sample of 600 young adults not enrolled in college was selected and 150 of them had at least one motor vehicle accident in the previous two years. At the .05 level, you are testing whether there is a significant difference in the proportions of college students and similar aged non college students having accidents during the two year period. What is the value of your pooled proportion?
Find the probability that fewer than 10 of those sampled currently have access to online services.
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p-value.
Determine the p-value; and at 95% confidence, test the above hypotheses.
Explain the logic of what you have done, writing as if you are speaking to someone who has never heard of correlation (but who does understand the mean, deviation scores, and hypothesis testing);
Use the t test to determine whether the slope of the regression model is significant at α = 0.05.
In a one-way ANOVA analysis of 3 treatments, with the total number of 9 observations, with an equal number of observations in each treatment, mean-square-error (MSE) was found to be 24.905.
Solve the mean and standard deviation equations
What is the intercept for the logistic regression equation and What is a 95% confidence interval for the odds ratio
To maximize Andre's probability of landing on the net, how far away from the cannon should he position the nearest edge of the net?
Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer.
CCI is unable to adjust the mean of the filling process. However, it is able to adjust the standard deviation of the filling process.
Assuming the sample size of 40 can be considered as large, compute the confidence interval for a confidence level of 90%.
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