Suggest about any sex based difference in manual agility

Assignment Help Basic Statistics

Reference no: EM131422265

A factory hiring people to work on an assembly line gives job applicants a test of manual agility. This test counts how many strangely shaped pegs the applicant can fit into matching holes in a one-minute period. The table below summarizes the data by sex of the job applicant. Assume that all conditions necessary for inference are met.

631_Tab 0.jpg

a) Find 95% confidence intervals for the average number of pegs that males and females can each place.

b) Those intervals overlap. What does this suggest about any sex-based difference in manual agility?

c) Find a 95% confidence interval for the difference in the mean number of pegs that could be placed by men and women.

d) What does this interval suggest about any difference in manual agility between men and women?

e) The two results seem contradictory. Which method is correct: doing two-sample inference or doing onesample inference twice?

f) Why don t the results agree?

Reference no: EM131422265

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