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given the following estimates of various components of genetic variationva 90 vd 50 vi 35 ve 125what is
Give a point estimate for the difference between the proportion of college-aged women and the proportion of college-aged men who are registered to vote.
Discuss these as sources of error in this study. How do you think these errors would compare with the error that you calculated in part (a)?
In a survey about soft drinks it was found that 5% of the respondents like diet soft drinks. 12% of them liked the brand Coke. Of all the Diet soda drinkers 40% liked Coke.
a sample of final exam scores is normally distributed with a mean equal to 20 and a variance equal to 25. what is the
The population standard deviation is 100 hours. A random sample of 64 bulbs indicates the mean is 350 hours. At the .05 is there evidence that the mean life is different than 375 hours?
Formulate both a numerical and verbal hypothesis statement regarding your research issue. Perform the five-step hypothesis test on data pertaining to your selection.
Determine if it is possible for you and your friends to all earn an A in this course if the instructor "grades on a curve". Explain your answer. Discuss whether you think this method of grading is fair.
Steps in hypothesis test procedure - conducting a hypothesis test for some general statistic, ? say.
standard deviation = $23.86 million mortgage amount standard deviation = 2.58% interest rate. what is the equation that predicts mortgage amount from interest rate? compute the slope of the straight line.
1. Testing the null hypothesis that the slope of the true regression line equals zero is equivalent to testing whether the true coefficient of correlation could be zero. Why?
researchers from the dept. of fruit crops at a university compared four different preservatives to be used in freezing
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