Dr. Cantelmi is interested in conducting a 2 x 2 x 3 mixed factorial design, with 20 participants in each cell. Which of the following would NOT be a possible number of participants for this study? a. 60 b. 40 c. 20 d. 80

Part A: There is a population of five people.  They were each asked how many movies they saw in the last year.  Amy saw one (1), Bob saw seven (7), Clara saw thirteen (13), Dora saw nineteen (19), and Earl saw twenty-five (25).  Looking at every single possible sample of size three (with replacement).  First column will be a list of every single sample (e.g., Amy, Amy, and Amy – or AAA – Amy, Amy, and Bob – or AAB – et cetera). The second column will list the mean of each sample.The third column will list the variance of each sample (using N in the denominator); and the fourth column will list the variance of each sample (using N-1 as the denominator).  Calculate the means of the last three columns.  To calculate the averages of the columns, put the data in a frequency table and then calculate the mean using the table.  Calculate the variance of the population.  Look at the values of the numbers.  Which one of these means is special?  Why?   This will have six distinct parts:  1)  the…

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Use the following for questions 24 to 26: A large office building has four entrances through which people can enter. One of the four entrances has had improved landscaping installed. An industrial psychologist wanted to see if people tend to use the entrance that has the improved landscaping more often. Using the buildings video surveillance system he randomly selected 200 people who entered the building. He found that 80 (40%) of the 200 entered through the improved entrance. He would like to determine if this is significantly more than we would expect if all the entrances were equally likely. To determine this he will conduct a test of Ho: p=0.25 vs. Ha: p>0.25. 24. In carrying out his test what null distribution should he use? (0.4)(1-0.4) a. A normal distribution centered at 0.25 with standard deviation 200 (0.4)(1-0.4) b. A normal distribution centered at 0.40 with standard deviation 200 (0.25)(1-0.25) С. A normal distribution centered at 0.40 with standard deviation 200…

Democratic and Republican presidential state primary elections differ in the way winning candidates are awarded delegates. In Republican states, the winner is awarded all the state's delegates; conversely, the Democratic state winner is awarded delegates in proportion to the percentage of votes. This difference led to an article on making your vote count. Consider scenario where you are one of five county commissioners voting on an issue, where each commissioner is equally likely to vote for or against. Complete parts and b below. a. Your vote (the decisive vote) counts only if the other four voters split, 2 in favor and 2 against. Use the binomial distribution to find the probability that your vote counts. The probability that your vote counts is 0.375. (Type an integer or a decimal. Do not round.) b. If you convince two other commissioners to "vote in bloc" (all agree to vote among yourselves first, and whatever the majority decides is the way all three will vote, guaranteeing that…

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Question 23 Read and solve the problem; choose the best answer from the choices provided. At a college there are 120 freshmen, 90 sophomores, 110 juniors, and 80 seniors. A school administrator selects a simple random sample of 12 of the freshmen, a simple random sample of 9 of the sophomores, a simple random sample of 11 of the juniors, and a simple random sample of 8 of the seniors. She then interviews all the students selected. Your answer: O Systematic random sampling o Convenience sampling Stratified sampling Cluster sampling

For a two-factor experiment with 2 levels of factor A and 3 levels of factor B and n = 10 subjects in each treatment condition, how many participants are in each level of factor A?   a.  ​10   b.  ​20   c.  ​30   d.  ​60