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1. A test consists of 10 true/false questions. To pass the test a student must answer at least 7 questions correctly. If a student guesses on each question, what is the probability that the student will pass the test?
2. A car insurance company has determined that 7% of all drivers were involved in a car accident last year. Among the 11 drivers living on one particular street, 3 were involved in a car accident last year. If 11 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year?
Conduct an analysis of variance
Would it be reasonable to conclude that the population mean is 63 pounds?
Calculate expected number of interruptions per day. Calculate standard deviation.
Test hypothesis that mean weight of 2 sheets are equal against alternative that they are not(suppose equal variances). Use α=0.05 and suppose equal variances. Determine the P value.
How many commercials' worth of data do I need to have a margin of error no more than 3, the correct set of hypotheses
Which of the following Venn diagrams has shaded the event that the contractor wins exactly one of the contracts and evaluate the mean time to complete the entire homework assignment
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
At.01 significance level, is there difference in mean number of times men and women order take-out dinners in month? Determine the p -value?
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
Find a 95% confidence interval for the proportion p of the inner-city, working-class group who eventually became alcoholics.
A professor of math refutes the claim that the average student spends 3 hours studying for the midterm exam. Which hypothesis is used to test the claim?
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments.
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