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1) What is the 95% Confidence Interval for the true population slope between Wins and Saves?
2) What is the standard error of the estimate and what are its units?
3) Determine if there is a significant relationship between Y and the explanatory variables in the model at alpha = .05.State the hypotheses, p-value, and the conclusion.
4) Perform a residual analysis of the plots of the residuals versus the predicted Y's, and each of the independent variables?
Determine the probability of choosing at random license plate which ends in the even number?
The International Coffee Association has reported the mean daily coffee consumption for U.S. residents as 1.65 cups. Assume that a sample of 38 people from a North Carolina city consumed a mean of 1.84 cups of coffee per day
Assume the population standard deviation is 7.1 mpg. State the correct null and alternative hypotheses that the company wishes to test. Calculate the test statistic that would be used for conducting the desired test.
Test hypothesis that two processes have identical fractions nonconforming. Use a = 0.05. Create the 90% confidence interval on difference in fraction nonconforming between two processes.
Make a scatter diagram of the scores; (b) describe in words the general pattern of correlation, if any (c) figure the correlation coefficient; (d) figure whether the correlation is statistically significant.
What is the 95% confidence interval for the true average number of hands per hour during peak hours?
The p-value for a test statistic is .085, what is the minimum level of significance required to reject the null hypothesis?
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05.
A random sample of 50 students from this school was selected, and the mean math SAT score was 530. Is the high school justified in its claim? Explain.
Find the probability that in a given year a) exactly one major hurricane will strike the U.S. mainland, b) at most one major hurricane will strike the U.S. mainland.
The mean exam score was 545 with standard deviation of 49. Is the 45 point difference between the sample and the population merely due to chance?
A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 67%.
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