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1. Choose a color of M&M. Using your data, calculate the 90%, 95%, and 99% confidence intervals for the population mean number of that color of M&Ms in a pack. You may assume that the M&M are approximately normally distributed. Which form of the formula did you use and why?
M & M Red Green Brown Blue Yellow Orange Total BgBag 1 5 2 4 5 3 3 22Bag 2 4 3 3 4 3 8 25Bag 3 8 2 3 1 4 2 21Bag 4 3 4 0 4 5 4 23Bag 5 6 5 4 5 3 2 21Total 26 16 16 19 18 19 112
The national median sales price for new single-family homes is $230,000 (The Associated Press, March 25, 2006). Assume that the following data were obtained for sales of existing single-family homes in Houston and Boston.
It is known that 6.3 percent of students who applied to UTC were not accepted. Determine the highest score of those who were denied acceptance?
A teacher gave a 25 question multiple choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0. Based on this information
The formula C=5/9 (F-32) , where F is equal to or more than -459.6, represents Celsius temperature C as a function of Fahrenheit temperature F.
The average amount of insulation in the sample of household is 12 inches. The sample standard deviation is 15 inches. Set up and interpret a 95% confidence interval.
Does this sample provide enough evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of the general population? Use a two-tailed test with α = .01.
A basketball player makes 80% of his free throws. If he attempts eight free throws during the next game, what is the probability that he will make more than his average?
A southern state has an unemployment rate of 6%. The state conducts monthly surveys in order to track the unemployment rate. In a recent month, a random sample of 700 people showed that 35 were unemployed.
Composite functions are useful when one quantity depends on a second quantity, and in turn that second quantity depends on a third quantity. This is an extremely general situation with lots of real-world applications.
In an article entitled "Fuel Economy Calculations to Be Altered," James R. Healey indicated that the government planned to change how it calculates fuel economy for new cars and trucks.
First explain what the Gini coefficient is and what hypothetical Gini values of 0 and 1 mean. Sort the data by the Gini coefficient in 2000 and look at the list of countries.
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
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