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A car manufacturer is concerned about poor customer satisfaction at one of its dealerships. The management decides to evaluate the satisfaction surveys of its next 66 customers. The dealer will be fined if the number of customers who report favorably is between 26 and 33. The dealership will be dissolved if fewer than 26 report favorably. It is known that 62% of the dealer's customers report favorably on satisfaction surveys.
What is the probability that the dealer will be fined
What is the probability that the dealership will be dissolved?
Find the probability that exactly six tickets are written on a randomly selected day from this distribution.
Is there sufficient evidence to conclude that a difference exists between the proportions of cats and dogs that sleep more than 10 hours per day?
A weight-loss clinic advertised that last month its patients
Based on past data, the Student Recreation Center knew that the proportion of students who prefer exercising outside over exercising in a gym was 0.734. To update their records, the SRC conducted a survey. Out of 95 students surveyed, 76 indicated..
The publisher reports that 80% of college professors require or recommend that their students purchase some type of textbook package.
computing the mean median range and standard deviation for the given data.weekly salaries in dollars for a sample of
A coin-operated coffee vending machine dispenses, on the average, 6 oz of coffee per cup. Can this statement be true of a vending machine that occasionally dispenses only enough to fill the cup half full (say, 4 oz)?
Is there a meaningful relationship between grades and SAT scores? If a student scores a 450 on the SAT what will her GPA be?
What happens to the confidence interval and the power of the test at a particular point of interest
an airline company sells 160 tickets for a plane with 150 seats knowing that the probability that a passenger will not
Mean waiting time was 15 minutes and that the standard deviation was 4 minutes. The 95% confidence interval for the population mean of waiting times is?
I have two contingency tables. One has a chi-square value of 14.40 and the other is 27.86. Both have 6 degrees of freedom. Based on an alpha of .01 do you reject the null hypothesis?
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