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Evaluation of parameters of Normal distribution and calculation and depiction of Normal Probabilities. On the same chart, produce a graph showing the original probability mass function, and a line graph showing your selected continuous probability density function.
Generate a document assessing the how well is your continuous distribution predicting the probability mass function and the rationale by which you selected the continuous distribution. Using the three approaches (raw data, PMF, and continuous distribution), compute the probability to be within one standard deviation of the mean. Are numbers the same? Comment on any differences.
At the .01 significance level, is there a relationship between job pressure and age?
Complete the table and answer the following questions. Use the .05 significance level.
Evaluate the difference in the mean ratings and find the standard deviation of the difference in the ratings, what is the chance both children are boys?
Assume that the following four examines were tested as part of a large group that had a normally curved distribution.
You have two unbiased estimates, e 1 and e 2 , of a quantity with variances V 1 and V 2 respectively, and covariance Cov {e1,e 2 } = C. Form a new unbiased estimate:
What is the standard deviation of expected returns for Stock X? For Stock Y?
Test the overall significance of the regression model at α = .05 level. Please use the six-step hypothesis-testing framework we employed in class, and write out the last three steps in this table:
What proportion of the variability in steel shipments for motor vehicles is described by regression equation?
Find out sample correlation coefficients of (I) age with dry weight, and (2) age with log 10 dry weight. Interpret your results.
Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.
If a blue ball is selected you win nothing. Let X be the amount that you win. The expected value of X and let the random variable X be a random number with the uniform density curve given below
State the values of the coefficient of correlation and coefficient of determination correct to three decimal places
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