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Question:
New Horizons Airlines wants to forecast the mean number of unoccupied seats per flight to Germany next year.To develop this forecast,the records of 49 flights are randomly selected from the files for the past year,and the number of unoccupied seats is noted for each flight. The sample mean and standard deviation are 8.1 seats and 5.7seats,respectively. Develop a point and 95% interval estimate of the mean number of unoccupied seats per flight during the past year. Forecast the mean number of unoccupied seats per flight to Germany next year. Discuss the accuracy of this forecast. Draw a curve to support your explanation.
What is the probability that the birth weight of a randomly selected baby of this type:
Please explain by using the traditional methods for testing hypotheses and showing the results of all steps in the process.
Suppose that you are the director of an insurance adjustment office. Your office has just received 140 insurance claims to be processed in the next few days half or more of the claims have been padded.
Assume the standard deviation is $160 and that the amount spent is normally distributed. What is the probability that the amount spent on a randomly selected child is more than $700?
If the sports report begins at 11:10, what is the probability that he misses part of the report if he waits until grading is done before turning on the TV?
A farmer has 40m of fencing with which to enclose a rectangular pen.Given that the pen is x m wide - show that it's area is (20x - x^2)m^2 and deduce that the maximum area that he can enclose (Answer given 100m^2).
Computed and shown to exceed the critical value for this data. The data is double checked and verified. This shows that car wrecks cause ice cream sales.
A local tire dealer wants to predict the number of tires sold each month. He believes that the number of tires sold is a linear function of the amount of money invested in advertising.
If hypothesis test for single population variance is to be conducted by using significance level of to 0.10, a sample size of n = 16, and test is a one-tailed upper-tail test, the critical value is?
For this assignment employ the data below which was taken from the previous online class. Find out if the data is qualitative or quantitative, continuous or discrete, and determine the level of measurement.
Conduct a global test of hypothesis to determine whether any of the regression coefficients are not zero. Use the .05 significance level
Use the odds for each group to compute the relative odds of Group B to Group A. How does this number compare to the result in Question #7. Does this make sense?
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