A new fever-reducing drug is being tested on 30 people. The ‘Problem 8’ show the time to relief (in minutes) for three ethnic groups divided by sex. Use 2-way ANOVA to see if there is (a) a difference between the means in the three groups; (b) a difference between male and female means; and (c) if there is any interaction between sex and ethnic group in the average time to relief for each group.
(a) test statistic:
(a) p-value:
(a) is there a difference between groups:
(b) test statistic:
(b) p-value:
(b) is there a difference between the sexes:
(c) Test statistic:
(c) P-value
(c) decision
(c) is there an interaction:
White | Black | Latino | |
Male | 34 | 53 | 53 |
49 | 52 | 40 | |
49 | 43 | 36 | |
34 | 56 | 33 | |
26 | 42 | 39 | |
Female | 38 | 36 | 38 |
39 | 41 | 31 | |
37 | 43 | 44 | |
46 | 37 | 30 | |
38 | 41 | 34 |
A new fever-reducing drug is being tested on 30 people. The ‘Problem 8’ show the time...
A new fever-reducing drug is being tested on 30 people. The ‘Problem 8’ show the time to relief (in minutes) for three ethnic groups divided by sex. Use 2-way ANOVA to see if there is (a) a difference between the means in the three groups; (b) a difference between male and female means; and (c) if there is any interaction between sex and ethnic group in the average time to relief for each group. (a) test statistic: (a) p-value: (a)...
Question 22 2 pts A new drug is being tested against a new virus. Twenty patients were treated with the drug and of those, 12 suffered an adverse reaction while 8 did not. The age in years of the two groups were as follows. Adverse Reaction (x) 53 29 53 67 54 57 51 68 38 44 63 53 No adverse reactionly) 44 51 64 33 39 37 41 72 Test at the 5% significance level, whether the data provide...
Solve all parts and show working: (i) : Use a 5% significance level to test the claim that the unsuccessful applicants are from a population with a greater mean age than the mean age of successful applicants. Based on the result, does there appear to be discrimination based on age? What did you use to get the answer? (ii): Is it a parametric or non-parametric test? If it is a parametric test what is distribution of test statistic The Revenue...
2. An experiment about a person’s ability to perform some task before and after taking one of the two drugs was conducted. The subjects performed the task that involved mental addition. The subjects were randomly divided into two groups. Each group drank a beverage containing one of two drugs, labeled A, B (placebo). After a period of time for the drugs to take effect, each subject repeated the mental addition test. We want to relate the after test score to...
3. Listed below are sorted braking reaction times in 1 / 10,000 sec) for male and female subjects (based on data from the RT-2S Brake Reaction Time Tester), also listed in the Excel file: Brake Reaction Time.rlsr. Male 28 30 31 34 34 36 38 38 38 38 39 40 40 40 40 41 41 41 | 42| 42| 40| 46 | 47 | 48 | 48 | 49 51 53 54 56 66 67 60 61 | 61 |...
NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In the Sanitary District of Chicago, operating engineers are hired on of a competitive civil-service examination. In 1966, there were 223 appl for 15 jobs. The exam was held on March 12; the test scores are s arranged in increasing order. The height of each bar in the histogram next page) shows the number of people with the correspondin examiners were charged with rigging the...
Consider the hypothesis test Ho : 41 – 42 = 0 against Hp : H1 - 12 € 0 samples below: 1 36 40 31 33 33 30 31 30 39 38 30 37 36 30 39 32 36 39 11 34 29 33 33 32 29 30 38 32 34 30 30 29 33 34 35 Variances: 01 = 3.8, 02 = 2.9. Use a = 0.05. (a) Test the hypothesis and find the P-value. Find the test statistic....
Reserve Problems Chapter 10 Section 1 Problem 1 Your answer is partially correct. Try again. Consider the hypothesis test Ho : 41 – 12 = 0 against H : H1 – Hy 70 samples below: I 37 39 31 33 33 30 31 30 38 38 30 37 36 30 39 31 35 38 II 33 29 34 33 32 29 30 35 31 34 30 30 31 32 34 35 Variances: 6 = 3.8, o2 = 0.1. Use a...
Below is small example of my txt.file that i am using in rstudio. My objective is create a matrix whose columns representing each year ,(2012-1990) . if "gender" is woman to list the age within its respected column for that given year. Below is the code I had created but an error displays "Error in `[<-`(`*tmp*`, i, p, value = mydata[i, 1]) : subscript out of bounds" . Can someone please explain in detail my error and what may fix...
Reserve Problems Chapter 10 Section 1 Problem 1 Your answer is partially correct. Try again. Consider the hypothesis test Ho: Mi - M2 = 0) against H1 : 41 - 42 7 0 samples below: I 35 38 31 32 33 30 31 29 39 38 30 38 36 31 39 32 36 39 II 32 29 33 32 31 29 30 36 31 34 30 30 30 32 34 34 Variances: 0 = 3.9, 02 = 0.6. Use a...