Assume an equal number of male and female employees at the manufacturing plant a
ID: 3132801 • Letter: A
Question
Assume an equal number of male and female employees at the manufacturing plant and that the salaries of 30 male and 30 female were chosen at random for comparison. Enter the male and female data into separate columns in GraphPad QuickCalcs and perform a t test on the data.
Which form of the t test should you choose for your analysis?
What conclusions can you draw from the results of this analysis?
Now assume that the 30 male and 30 female employees are matched based on the number of years of experience for equivalent work.
Which form of the t test should you choose for your analysis?
Did the assumption of matched participants affect your choice?
What conclusions can you draw from the results of this analysis?
Were the results of this analysis different from the one you did for part A? Why or why not?
Is random assignment always the best way to assign participants to groups? Why or why not?
Is this a true experiment? Why or why not?
Could the dataset used for this project be from an experiment? OR Could the dataset used for this project be from an ex post facto study?
Write a description of procedures that make this dataset appear to be from a true experiment. Then write a description of procedures that make this dataset appear to be from an ex post facto study.
T.test all of male. T test all of female. T test first male and female together
Male Female 29300 31500 30400 28500 33500 27800 29500 31200 28400 29200 28420 28480 34240 28770 30360 29990 36690 29740 30490 28470 28950 28430 32220 33040 31050 28600 31820 28950 32120 28450 28800 31600 29800 28500 32600 28000 29200 30100 28200 28500 28570 27650 34370 28700 29090 29530 33480 29900 30470 27500 28830 27470 32230 33230 31090 28780 32000 26990 32310 28510Explanation / Answer
# i will answer 1st 4 subparts only #
Assume an equal number of male and female employees at the manufacturing plant and that the salaries of 30 male and 30 female were chosen at random for comparison. Enter the male and female data into separate columns in GraphPad QuickCalcs and perform a t test on the data.
Which form of the t test should you choose for your analysis?
answer : we will use two sample t-test
What conclusions can you draw from the results of this analysis?
answer: p-value is zero so we are rejecting H0 and claim that there is significant difference between means of two groups
Now assume that the 30 male and 30 female employees are matched based on the number of years of experience for equivalent work.
Which form of the t test should you choose for your analysis?
answer : we will use two sample t-test
Did the assumption of matched participants affect your choice?
answer: here we lokkinto in the whole sample of 30 not the individual. so individual can match but as a whole the means are differ.
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