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1. The access code to the house's security system comprises of seven digits. How many different codes are available if each digit can be repeated?
2. A tourist in Ireland wants to visit six different cities. How many different routes are possible?
Statistics and Probability, Statistics
Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2. Use the given sample sizes and numbers of successes to find the P-value for the hypothesis test. n1 = 50 n2 = 50 x1 = 8 x2 = 7
The Total Cholesterol levels of a sample of men aged 35-44 are normally distributed with the mean of 203 milligrams per deciliter and a standard deviation of 37.4 milligrams per deciliter. (a) What percent of men have a ...
Paper should be between 800 and 1,000 words in length. It is due according to the due date on the course calendar. 1. Drawing on the readings and lectures, name at least three developments or factors that encouraged the ...
Statistics Project: Come up with a survey: Pick a population Come up with 4 variablesà 2 Quantitative & 2 Qualitative (make up numbers) Pick 50 data points for each variable, make a table on excel, use a scatter plot gra ...
A researcher obtained a sample of 180 participants between the ages of 18 and 24 and calculated the phi coefficient between whether they smoked cigarettes and whether they used marijuana (yes vs. no). Because the correla ...
1. What is a restricted range, and what effect does it have on correlation coefficients? How would you detect and correct a restricted range? 2. How do we know whether a particular score is an outlier?
Consider a normal population with μ = 47 and σ = 6. Calculate the z-score for an x of 46.3 from a sample of size 26. (Give your answer correct to two decimal places.
Starting in 1998, a series of credit card usage studies have been performed by Sallie Mae, a major provider of educational loans and savings programs. In a recent pilot study, a random pool of 122 loan applicants attendi ...
Please no plagiarism. 1. Compare and contrast the Northern and Southern economies and societies in the antebellum period. How did industrialization develop in the North, and plantation slavery in the South? How did the e ...
Researchers use hierarchical regression, cross-lagged panel designs, and structural equations modeling to partly resolve the problems associated with inferring causality from correlation. a. Describe how each of these an ...
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