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1) A regression of attitude toward legalizing marijuana on age (X1) and education (X2) produced the following estimated coefficients and standard errors for a sample of 265 persons:
b1 = -6.24 Sb1 = .346b2 = +0.33 Sb2 = 0.12Test one-tailed alternatives to the null hypotheses that ß2 > 0; use a = .01.
2)
Write a substantive interpretation of the following unstandardized regression equation based on a sample of 743 city residents, where Y is a 10-point scale measuring the number of professional sporting events attended per year. X1 is education, X2 is annual income (divided by $10,000), and X3 is a dummy variable for gender (1=female, 0 = male). The t ratios appear in parentheses.
Y = -8.73 - 0.59X1 + 1.46X2 - 5.40X3 (-3.76) (-1.42) (2.14) (-2.87)
To find the probabilities values of standard normal variable
It has been claimed that women live longer than men; however, men tend to be older than their wives. Ages of sixteen husbands and wives from England were obtained. The null hypothesis of equality of means is rejected. What conclusion can be made f..
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Is it reasonable to conclude that this set of n = 16 people is not a representative sample of registered voters?
You own a small tea company, Sweet Leaf, NASDQ ticker symbol LEAF. You are looking at marketing costs versus benefits. Your production manager says it doesn't matter which tea you produce
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Prepare an analysis of your selected article. Start by identifying and summarizing the hypothesis described in the article. Then explain whether the hypothesis was rejected or accepted,
What is the 95% confidence interval for the mean number of microwaves sold at a retail store in the chain last week?
Mean and standard deviation are 584.6 and 34.28
What is the interpretation of the coefficients that emerge from the regression equation. Can you predict a change in the y variable given knowledge of the x variable?
Finding probability for the given values of the uniform density curve
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