Males 18 43 32 27 15 45 21 22
Females 16 38 35 29 15 46 25 28
a) Use a Mann-Whitney U rank test to determine
if there is a difference in the salaries.
b) Based on the results, address the decision of whether the
females should be given a raise.
a.

b. There is no reason that the women would all be given a 5% raise since there is no significant difference in the salaries of Males and females.
In a company that was founded on fairness, the human resources manager was asked to perform...
UTRGV female and male students were asked how much time they spent watching TV each week. Researchers would like to know if there is a difference between the time males and females spend watching TV. (α = .05) Men Women 10 13 15 3 6 5 8 7 20 9 12 4 a) What is the t-observed for the difference between the means? b) What is the p-value c) Based on the p-value and alpha, is there a statistically significant...
1.) If you have two treatments that are independent samples and you assume a normal distribution of the data, which test(s) would be appropriate to use? Select all that apply. Mann-Whitney U-test Paired t-test Welch's t-test Two-sample t-test Sign test 2.)The [x] is used to test a null hypothesis that the mean difference of paired measurements equals a specified value. 3.) To examine the potential effects on the transmission of dengue, Bian et al. (2010) infected mosquitoes from both the...
The following are salaries from 24 human resource managers. Using the raw measurement data presented, determine whether there is a statistically significant difference between the salaries of female and male human resource managers. Create an SPSS data file and conduct the appropriate statistical test. Answer the following questions based on your analyses. Females Males 50000 55000 55000 63000 71000 53000 68000 70000 52000 69000 58000 60000 54000 58000 67000 69000 72000 73000 75000 67000 53000 61000 56000 52000 Paste...
Case study#1: The Wilcoxon-Mann-Whitney Test Q. Soil respiration is a measure of microbial activity in soil, which affects plant growth. In one study, soil cores were taken from two locations in a forest: (1) under an opening in the forest canopy (the ‘gap’ location) and (2) at a nearby area under the heavy tree growth (the ‘growth’ location). The amount of carbon-di-oxide given off by each soil core was measured (in mol CO2/g soil/hr). Table below contains the data Soil...
A 2010 study examined students' perceptions about the use of video games in the classroom. 200 students were surveyed (103 females, 97 males) from flemish secondary schools. (c) The students were also asked about how frequently they played video games. 21.4% of female students and 11.3% of male students replied that they did not play video games. Construct a 95% confidence interval for the difference in the proportion of male and female students that do not play video games. [1]...
gender
income
Male
48932
Male
48281
Male
49885
Male
48646
Male
49391
Male
48824
Male
49459
Male
48685
Male
48215
Male
49362
Male
47647
Male
48860
Male
47438
Male
47052
Male
48157
Male
48349
Male
49589
Male
48579
Male
48411
Male
49048
Male
48705
Male
49932
Male
48779
Male
47685
Male
48984
Male
48616
Male
47362
Male
46919
Male
47676
Male
47932
Male
48494
Male
49161
Male
48201
Male
48089
Male
48287
Male
48028
Male
48240
Male
48312
Male
47827...
The following are salaries from 24 human resource managers. Using the raw measurement data presented, determine whether there is a statistically significant difference between the salaries of female and male human resource managers. Create an SPSS data file and conduct the appropriate statistical test. Answer the following questions based on your analyses. Females Males 50000 55000 55000 63000 71000 53000 68000 70000 52000 69000 58000 60000 54000 58000 67000 69000 72000 73000 75000 67000 53000 61000 56000 52000 Write...
The following are salaries from 24 human resource managers. Using the raw measurement data presented, determine whether there is a statistically significant difference between the salaries of female and male human resource managers. Create an SPSS data file and conduct the appropriate statistical test. Answer the following questions based on your analyses. Females Males 50000 55000 55000 63000 71000 53000 68000 70000 52000 69000 58000 60000 54000 58000 67000 69000 72000 73000 75000 67000 53000 61000 56000 52000 Write...
3) Please answer questions A and B based on the following information: The director of transportation of a large company is interested in the usage of her van pool. She considers her routes to be divided into local and non- local. She is particularly interested in learning if there is a difference in the proportion of males and females who use the local routes. She takes a sample of a day's riders and finds the following: Male Female Local 35...
Does the amount of hazardous material absorbed by the bodies of hazardous waste workers depend on gender? You want to test the hypotheses that the amount absorbed by men (group 1) is different from the amount absorbed by women (group 2). A random sample of 167 male workers and 188 female workers showed an average lead absorption in the blood of 9.7 (SD = 0.975) and 9.62 (SD = 0.724), respectively (measured in micrograms/deciliter). Assuming that the population standard deviations...