QUESTIONS You want to test which candy gets you the best ratings on student evaluations (0-10)....
You want to test which candy gets you the best ratings on student evaluations (0-10). The first set of students gets no candy, the second gets black licorice, and the third gets skittles. You test n = 4 people in each group No Black Candy Licorice Skittles 4 زرا 8 N = 12 زرا 1 4 G = 48 5 3 6 Ex2 = 238 4 1 6 T= 16 8 24 M= 4 2 6 SS = 2 4...
You want to test which candy gets you the best ratings on student evaluations (0-10). The first set of students gets no candy, the second gets black licorice, and the third gets skittles. You test n = 4 people in each group. No Black Candy Licorice Skittles 4 8 N = 12 زرا زرا 4 G = 48 5 3 6 2x2 = 238 4 1 6 T = 16 8 24 M= 4 2 6 SS = 2 4...
i need help with this question, please show work by hand no excel, spss thank you ! Assume you're using an alpha of 05, and a two-tailed test, to make your decision about whether to reject the null hypothesis. Assume that 18 subjects received one of three treatments and produced the data reported in Data Set B. Conduct a one-way ANOVA to see if the means of the three treatments are different on a statistically significant level. Complete an ANOVA...
Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean. 15) Fill in the Blank. What's the P-Value? What can you conclude about the equality of the population means? Source DF SS MS F P Factor 3 13.500 4.500 5.17 0.011 Error 16 13.925 0.870 Total 1927.425 O p=0.870, reject HO OP-Value...
Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean. 15) Fill in the Blank. What's the P-Value? What can you conclude about the equality of the population means? Source DF SS MS F P Factor 3 13.500 4.500 5.17 0.011 Error 16 13.925 0.870 Total 1927.425 O p=0.870, reject HO OP-Value...
Opinions about whether caffeine enhances test performance differ. You design a study to test the impact of drinks with different caffeine contents on students' test-taking abilities. You choose 21 students at random from your introductory psychology course to participate in your study. You randomly assign each student to one of three drinks, each with a different caffeine concentration, such that there are seven students assigned to each drink. You then give each of them a plain capsule containing the precise...
Please answer all 9 questions Question 1 (6 points) Two college instructors are interested in whether or not there is any variation in the way they grade math exams. They each grade the same set of 10 exams. The first instructor's grades have a variance of 59.2. The second instructor's grades have a variance of 72.5. Test the claim that the first instructor's variance is smaller. (In most colleges, it is desirable for the variances of exam grades to be...
Opinions about whether caffeine enhances test performance differ. You design a study to test the impact of drinks with different caffeine contents on students' test-taking abilities. You choose 21 students at random from your introductory psychology course to participate in your study. You randomly assign each student to one of three drinks, each with a different caffeine concentration, such that there are seven students assigned to each drink. You then give each of them a plain capsule containing the precise...
4. Repeated-measures ANOVA Aa Aa Suppose you are interested in studying whether lighting brightness affects spatial reasoning abilities. You decide to test spatial reasoning using completion time scores for the paper-folding test with five people, repeating the test on each person with three different lighting levels (800, 1,000, and 1,200 lux) In this experiment, the null hypothesis is that: O There are no individual differences in the completion time means O The completion time mean for at least one lighting...
5. Hypothesis testing with ANOVA Aa Aa E Opinions about whether caffeine enhances test performance differ. You design a study to test the impact of drinks with different caffeine contents on students' test-taking abilities. You choose 21 students at random from your introductory psychology course to participate in your study. You randomly assign each student to one of three drinks, each with a different caffeine concentration, such that there are seven students assigned to each drink. You then give each...