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Question: An automobile safety inspection station found that in 1000 cars tested:
1· 100 needed wheel alignment, brake repair, and headlight adjustment
2· 325 needed at least two of these three items
3· 125 needed headlight and brake work
4· 550 needed at wheel alignment
a. How many needed only wheel alignment?
b. How many who do not need wheel alignment need one or none of the other items?
A fair coin is flipped 3 times. Compute the odds of flipping 3 tails.
(1) Using the mean and median given above, what is the likely shape of the distribution of the number of books read in a year? (2) Give the correct notation for the value "17". Is it a parameter or a statistic? (3) Give notation for and define the..
At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer make?
ACME will incur the cost of replacement, but will not receive any additional revenue. What is the profit earned/loss incurred on an all weather tire that exceeds 40,000 miles?
When doing hypothesis testing we have two ways of making a decision - the critical value method and the p-value method. While both give the same results in terms of determining whether to reject or not reject the null hypothesis
Discuss why the independent t-test is called independent. What does this analysis have to do with variance within and between groups?
What are the advantages and disadvantages of control charts for attributes over those for variables?- Discuss the significance of an appropriate sample size for a proportion-nonconforming chart.
a 97 confidence interval in inches for the mean height of a population is 65.4 67.0. this result is based on a sample
All standard IQ test scores are normally distributed and are set up so that the mean score is 100. However, the standard deviation differs from test to test.
Women's incomes. The average income of American women who work full-time and have only a high school degree is $33,230. You wonder whether the mean income of female graduates from your local high school who work full-time but have only a high scho..
Illustrate what was the lowest score earned on the exam. Explain how many students scored within 3 standard deviations of the mean.
suppose the amount of a popular sport drink in bottles leaving the filling machine has approximately a normal
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