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In a certain lottery, five different numbers between 1 and 36 inclusive are drawn. These are the winning numbers. To win the lottery, a person must select the correct 5 numbers in the same order in which they were drawn. What is the probability of winning?
According to the regional bar assoc., 60% of people who take the bar exam pass. Find the approximate probability that at least 61% of 200 randomly selected people taking the bar will pass. Round to three decimal places as needed.
Discuss something you have witnessed or observed in nature. Discuss the temptation to imply or infer causality and be sure to identify areas of future investigation that might be warranted to determine cause and effect.
Assume gasoline prices for a region are normally distributed. Do the data you obtained provide enough evidence to reject the claim?
Give the Z- score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected
ACT scores of high school seniors. The scores of high school seniors on the ACT college entrance examination in 2003 had mean JL = 20.80 and standard deviation (J = 4.80. The distribution of scores is only roughly Normal.
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
Compute b1, slope of an OLS regression line using dollars spent as dependent variable (Y) and age as independent variable (X).
Develop three regression models to predict the selling price based upon each of the other factors individually. Which of these is best?
The following data represent the cost of electricity for the period of July 2008 for a random sample of 50 one-bedroom apartments in a large city.
Each egg was also measured for volume using a water displacement method. We wanted to know if the two methods agreed or not
Texas Company produces and sells 22,000 units of a single product. Costs associated with this level of production are as follows:
Find a 90% confidence interval for the mean amount left by all groups.
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