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On opening day one season, 10 major league baseball games were played and they lasted the following numbers of minutes.
167 211 187 176 170 169 198 218 145 232
Find the sample variance. Round your answer to two decimal places
Which one of these statements concerning the creation of frequency tables for integer data is true? The procedure for creating them is the same as that for creating tables for qualitative data.
What is the real world value of the y-intercept and slope in a regression equation? Other than statistics problems, why should I care?
Problem based on combinatory - how many different license plates are possible?
A portfolio p of consisting 60% of stock X and 40% of stock Y, has a correlation ρpM = 0.62 with the market. What is the portfolio volatility? Statement on the diversification effect.
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank-sum test, evaluate the significance of the results, assuming there are no ties.
Data are recorded on effects of each drug. Is research division by using dependent or independent samples? Explain why?
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages. (a) At the .01 level of significance, is the true mean greater than 10? (b) Use Excel to find the..
A sociologist wishes to conduct a poll to estimate the percentage of Americans who favor affirmative action programs for women and minorities for admissions to colleges and universities.
Two cards are drawn without replacement from a pack X measures hearts drawn and Y measures clubs drawn, both are random variables.
How large should n be so that a 90% confidence interval for µ has a margin of error and What is the P-value for a test of the hypotheses
The machine will stop working if more than three components fail. Find the probability that the machine will be working.
What is the expected number of Republicans who will win office in the coming election?
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