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The random sample of 600 car owners in the particular city found 138 car owners who recieved the speeding ticket this year. Determine the 95% confidence interval for true percent of car owners in this city who received the speeding ticket this year. Explain your results to nearest hundredth of percent.
A standard for full credibility of 1,000 claims has been selected so that the actual pure premium will be within 10% of the expected pure premium 95% of the time. The number of claims has the Poisson distribution. Determine the coeffcient of vari..
Test, at the 5% level of significance, whether the population standard deviation of hours spent studying is less than 10. Use the Critical value approach.
Find a 99% confidence interval for the population mean number of weekly miles.
Using the dataset, produce a graph of per capita GDP for Argentina, China, and Canada from 1965 to 1995. Is inequality between these countries increasing?
Suppose also that after selecting 15 members at random we obtained the following paired observations: Use these data to find the covariance between age and the number of visits.
The Minitab output for the Tukey Least Significant Difference multiple comparisons is below. Which means are different and similar
In the biology class the mean score was 79 with standard deviation 5.
Converting data to indexes makes it easier to compare the trend in a series composed of exceptionally large numbers.
Find the z score corresponding to a score of X = 60 for each of the following distributions:
Create raw score predictions on criterion variable for persons with Z scores on predictor value of -2,-1,0,+1,+2.
Describe different methods of establishing correlation between variables and provide an example of each. Discuss the advantages and disadvantages of each method and where each must be applied.
To test whether the significant difference between two proportion test using large sample test.
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