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A gasoline tank for a certain car is designed to hold 15 gals of gas. Suppose that the variable x = actual capacity of a randomly selected tank has a distribution that is well approximated by a normal curve with a mean of 15.0 gal and standard deviation of 0.1 gal. What is the probability that a randomly selected tank will hold
a.) at most 14.8 gal?b.) between 14.7 and 15.1 gal?c.) at least 14.9 gal?
What minimum sample size will be required if they want to be 99% confident that the sample proportion will not differ from the true population proportion by more than 5%?
A shipment of crankshafts is believed to be defective. A simple random sample of 16 is drawn from a large shipment. Check to see if the sample is any different from the assumed population mean of 224.
Determine the probability that we would reject null hypothesis given that it is true?
Multiple choices based on regression analysis - how much or how many but instead is assigned values to represent categories
In some places in the US, people are aware of the need for more care for older citizens, like Dr. Hope. In the election in one area, they put forward a referendum that would increase the county sales tax by one cent to pay for increased services f..
Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect?
Evaluate the data below using the Kruskal - Wallis Nonparametric Hypothesis Test. Explain why you chose this particular nonparametric test to analyze your data.
Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
Create the box plot to represent data. Explain the distribution. Ensure to recognize the first and third quartiles and median.
Jon Molnar will graduate from Carolina Forest High School this year. He took the American College Test (ACT) for college admission and received a score of 30.
The results of a recent poll on the preference of shoppers regarding two products are shown below.
Determine the test criteria that would be used to test Ho: u 1.0 with n=18 and significance level of 0.01 using the classical approach.
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