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Consider the following two binomial experiments
a) In a binomial experiment consisting of six trials, how many outcomes have exactly one success and what are these outcomes?
b) In a binomial experiment consisting of 20 trials, how many outcomes have exactly 10 successes?
Chi-square test for independence of attributes - Describe why a x 2 test of the resulting contingency table is appropriate for such an investigation.
A professor wants to conduct a study to know whether the grades she gives to her students affect their evaluations of her. She teaches four classes of ten students each.
Find the correlation coefficient for the data. Find the equation for the regression line for the data and predict the final grade of a student who misses 3.5 days.
Make a scatter plot of Y and X1 using Word. To do this click on insert and then chart. Click on X Y (Scatter). Enter the data from the table.
Please use the five-step process for hypothesis testing. The Connecticut Board of Education is concerned that first year female high school teachers are receiving lower salaries than their male counterparts.
Calculate separately for 1983 and 1987, the 95% confidence interval for the proportion of students who had driven an automobile while drinking.
Use this information to make a 95% confidence interval to evaluate true average number of copies made each day at this company.
What is the treatment mean square? What is the mean square error? How many groups are included in the study?
Share 1 real-world binomial distribution situation and 1 real-world Poisson distribution situation. Be sure to explain why each example is defined as binomial or Poisson.
Assume your statistics professor reports test grades as z-scores, and you got a score of 2.20 on the midterm exam. Write down a sentence explaining what that means.
What is the decision regarding the null hypothesis (is there a difference in the mean numbers of cameras sold at the three department store chains)?
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.
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