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X is a random variable that denotes the number of women who go to college in a sample of 1000. The probability of going to college is 0.4. What is the probability that the proportion of women who go to college is greater than 50%.
Statistics and Probability, Statistics
What are the ways that IT can help comply with legal requirements and social responsibilities surrounding the sales of alcohol?
Assume that the significance level is alpha equals α=0.05. Use the given statement and find the? P-value and critical? value(s). The test statistic of z equals = -1.53 is obtained when testing the claim that p= 1/6 P-val ...
54% of public high school students are provided a computer by their school district. 40 students are selected at random. The random variable represents the number of students who have been provided a computer by their sc ...
1. A certain compact disc player randomly plays each of 10 songs on a CD. Once a song is played, it is not repeated until all the songs on the CD have been played. In how many different ways can the CD player play the 10 ...
A sample of 100 randomly selected students found that the proportion of students planning to travel home for Thanksgiving is 0.68. What is the Standard Deviation of the sampling distribution?
A confidence interval estimate is desired for the gain in a circuit on a semiconductor device. Assume that gain is normally distributed with standard deviation σ = 30. (a) How large must n be if the length of the 95% CI ...
What is the 99% confidence interval for a sample of 52 seat belts that have a mean length of 85.6 inches long and a standard deviation of 3.8 inches?
Zero-coupon bonds with a par value of $1,000,000 have a maturity of 10 years and a required rate of return of 9 percent. What is the current price?
The number of stomata (tiny openings) on the leaves of a particular mutant of Arabidopsis (a common experimental plant) is known to be approximately normally distributed with mean 75 and variance 49. What is the probabil ...
For a population of individuals that has a standard deviation of 10, what is the standard error of the mean for samples of size (a) 2, (b) 3, (c) 4, (d) 5, (e) 10, (f) 20, (g) 100?
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