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Suppose you have the experiment of flipping a coin three times.
(a) State the sample space.
(b) Find the probability of getting 0 heads.
(c) Find the probability of getting 1 head.
(d) Find the probability of getting 2 heads.
(e) Find the probability of getting 3 heads.
(f) Write the probability distribution for the random variable, x, being the number of heads.
(g) Draw a histogram of the probability distribution.
(h) Find the expected value for the probability distribution.
(i) Find the standard deviation for the probability distribution.
Assume the population standard deviations are not the same. At the .05 significance level, is there a difference in the mean waiting time?
Suppose we wish to test the null hypothesis that there are no differences among the proportion of men and women who developed a rash. Evaluate the P-value of the chi-square test of this hypothesis.
Could mud-wrestling be the cause of a rash contracted by University of Washington students in the spring of 1992? Two physicians at the University of Washington health center wondered this when one male and six female students complained of rashes..
How large a sample is required to estimate the mean speed with a margin of error equal to 2 miles per hour with 90% confidence?
What is Peter's median grade point at graduation? What is the shape of the grade point distribution?
A sample of twenty automobiles was taken, and the miles per gallon (MPG), horsepower, and total weight were recorded. Develop a linear regression model to predict MPG using horsepower as the only independent variable. Develop another model with weig..
What would you recommend Taylor do to cut back its labor cost? (Illustrate using an ABC plan.)
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in context of real life situation.
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location.
Determine SSE, SS (Total) and the explained sum of squared variation SSR and find the estimated y intercept slope and write the regression equation.
If the sample consists of n = 15 individuals, then compute df value for the t statistic?
FBI Report Do greater universities tend to have more property crime, would you speek that the correlation is low, moderate or high
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