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Recall that the binomial distribution is given by:
b(x;n,θ)=(n/ x) θ^x (1-θ)^n-x, which has nθ and variance nθ(1 - θ).
a) If X has distribution b(x;9, 0.2), find P(X=4)
b) What does Chebyshev's Theorem tell us about the probability that Xlies between 0 and 3.6?
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?
How many subjects are needed to estimate the mean number of books read the previous year within four four books with 90?% ?confidence?
At the .05 significance level, can we conclude that the guideline is still reasonable?
How many samples of six contain at least one coin from Denmark?
the data in the following table represent the total rates of return for three stock exchanges over the three-year
Define and describe your variables (no need to include in final write-up, but you may include this in an Appendix) - Find data to test your hypothesis
A telephone call from a certain person is received some time between 7:00 A.M. and 9:10 A.M. every day. Define a sample space for this phenomenon, and describe the event that the call arrives within 15 minutes of the hour.
Estimate the true proportion of incomplete files for ALL the bank's commercial loans. Write a statement about the confidence level and the interval you find.
the mean length of time per week that students at a certain school spend on their homework is 24.3 hours with a
Your first IBM SPPS assignment includes two sections in which you will: Create two histograms and provide interpretations
How large should the sample be if I want to maintain a 95 percent level of confidence and suffer a maximum error of $2.00 in my estimate of the highest price consumers are willing to pay?
directions answer each of the following questions. show your work or explain how you arrived at your conclusion
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