Steven U.

The distribution of the number of daily requests is bell-shaped and has a mean of 48 and a standard deviation of 7. Using the empirical rule (as presented in the book), what is the approximate... more

And, the mean age of CSUF juniors is 21 years with a standard deviation of 4. Also, assume that the population ages are normally distributed. Hint: the conditions are met to use the normal model -... more

Hello. I am curious about the effect size, Rosenthal’s r. I understand it shows the strength of an effect. I am confused about its relationship with persons r. For example if I am comparing... more

An XYZ Investor Optimism Survey, conducted over a two week period, found that out of 84 randomly selected people, 43 of them said they are confident of meeting their goals. Suppose you are have... more

You generate a scatter plot using Excel. You then have Excel plot the trend line and report the equation and the r2r2 value. The regression equation is reported asy=46.76x+72.82y=46.76x+72.82and... more

A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y).The results of the regression... more

Could someone please help me with this question. How do you code effect sizes in R?? What would the code look like or the functions. I am working on a mixed regression. Here is the hypothesis... more

You are conducting a Goodness of Fit hypothesis test for the claim that the 4 categories occur with the following frequencies: H0 : Pa=0.25;  Pb=0.25;  Pc=0.4;  Pd=0.1 Give all answers as decimals... more

    y = mx+b    need help explaining what the bold letters mean

1) A story about a family trying to stick together and survive through the Great Depression in the Midwest in the 1930sAuthor's purpose:______________________ 2) A section in a history book... more