(2) Intermediate Statistics To test Ho: Pa-0 vs Ha: Pa 0, the critical region is? (Where pa is mean difference) C a 14-12-1 1-11 > En-1 In-1 ≤-In-1a In-1 ≥tn-1a
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- can you explain how these scores were found, based on the statistics provided they dont seem to match up.' There is a significant interaction effect between employment status and substance use on stress levels. Two-Way ANOVA result: F(3,470) = 5.67, p = 0.001' IAn advertising firm wishes to demonstrate to its clients the effectiveness of the advertising ca Español it h bivariate data on twelve recent campaigns, including the cost of each campaign (denoted by X, in millions percentage increase in sales (denoted by y) following the campaign, were presented by the firm. A scatter 1. Also given is the product of the campaign cost and the percentage increase in sales for each of the twel written in the column labelled "XY", may aid in calculations.) Campaign cost, X (in millions of dollars) 3.30 2.35 2.07 3.97 2.26 1.27 3.10 3.03 1.63 1.61 3.53 3.92 Send data to calculator Increase in sales, y (percent) 6.55 6.62 6.70 6.80 6.54 6.38 6.65 6.92 6.66 6.20 6.76 7.05 xy 21.615 15.557 13.869 26.996 14.7804 8.1026 20.615 20.9676 10.8558 9.982 23.8628 27.636 Increase in sales (percent) Figure 1 7.2+ 7+ 6.8- 6.6 6.4- 6.2. X x 1.5 2 2.5 Campaign cos (in millions of doll 3One-Way ANOVA A researcher wants to know if the time of day that a test is taken affects critical thinking ability. Factor (IV) = Time of Day DV = correct answers on a critical thinking abilities test. MORNING AFTERNOON NIGHT 4 3 8 3 1 4 5 3 6 4 1 6 ENTER VARIABLE: Time_of_Day Value Labels for each level 1 = Morning, 2 = afternoon, 3 = Night Move DV in to “Dependent List” Move IV in to “Factor” Select the Tukey post hoc analysis Click “options” Descriptive Stats Homogeneity of Variance test (should be greater than alpha level) THREE or FOUR THINGS to REPORT You will be reporting three or four things, depending on whether you find a significant results for your one-way ANOVA. Test type and use You want to tell your reader what type of analysis you conducted. This will help your reader make sense of your results. You also want to tell your reader why this particular analysis was used. What did your analysis test for? EXAMPLE: “A…
- Using an evenly distributed data population of 8,000 samples, how many Would fall between a Z-score of -0.5 and +0.5? (blank)Suppose that three drugs used to reduce systolic blood pressure are compared in a randomized experiment in which four people use each drug for a month. The data for the reductions in systolic blood pressure for the N = 12 participants follow. Drug 1 Drug 2 Drug 3 7 8 16 2 12 5 5 6 4 10 Calculate the F-statistic for comparing the mean cholesterol reductions for the three drugs. What is the value of F? | (report to 2 decimal places) What are the degrees of freedom for this statistic - Between df? .Within df?(b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) critical values table 3 0.997 4 0.950 5 0.878 6 0.811 7 0.754 8 0.707 9 0.666 10 0.632 11 0.602 12 0.576 13 0.553 14 0.532 15 0.514 16 0.497 17 0.482 18 0.468 19 0.456 20 0.444 21 0.433 22 0.423 23 0.413 24 0.404 25 0.396 26 0.388 27 0.381 28 0.374 29 0.367 30 0.361 n
- Please explainWhat does multivariant normality mean in MANOVA? How is it tested and what do I do if the assumption is not met.review(8a): Identify the test statistic used for the ANOVA prodcedure and how it is calculated (a) the test statistic is F and is calculated by finding the difference between group means (b)the test staitistic is z and is calculated by finding the mean z score between groups. (c) the test statistic is F and is the ratio of the variation getween groups to the variation within groups. (d) the test statistic is z and is the ratio of the mean within a group to the variation between groups
- 11Explain these tables, especially those in green, and what they are used forSolve using R commands and manually Suppose that blood chloride concentration (mmol/L) has a normal distribution with mean 104 andstandard deviation 5 (“Mathematical Model of Chloride Concentration in Human Blood,” J. of Med.Engr. and Tech., 2006: 25–30”).(a) What is the probability that chloride concentration equals, less than, and at most 104?(b) What is the probability that someone’s blood chloride concentration level is between 99 and 114?(c) What is the probability that someone’s blood chloride concentration level is above 120?