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The Department of Transportion (DOT) is attempting to determine the proportion of drivers who require all passengers in the car to wear their seatbelt before putting the vehicle in drive. A survey of 82 drivers is performed and 45 people say they will not drive until all passengers in the vehicle are buckled up. To report their finding they want to create a 90% confidence interval. What would be the margin error for this confidence interval?
1) 0.0100
2) 0.0050
3) 0.0901
4) 0.0703
5) 0.0550
Get a test statistic and p -value. Interpret results at α = .01.
How many dissimilar computer passwords are possible?
If the top 15% of the test scores are usually good enough for admission to law school, find the cut off score for gaining admission.
the maximum point total for the quarter was 200. The point totals for the 10 students are given in the stemplot below. For the density curve displayed below, which of the following is true?
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Evaluate probability values using normal distribution and How many students earned more than $36,000? _______
How large a sample should be taken if the desired margin of error is?
what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?
Question: If the regression line is drawn as Y = C + 1075x, when X was 2 and y was 239, given that the intercept was 11. Calculate the residual
Calculate and plot t he new supply schedule and indicate the new equilibrium price and quantity on your diagram
Consider a hypothesis test that uses a 0.05 significance level to test the claim that the mean body tem of the population is less than 98.6
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