Question

In: Statistics and Probability

Mechanical engineers have investigated the performance of the males in assembling   aircraft hydraulic systems compared to...

  1. Mechanical engineers have investigated the performance of the males in assembling   aircraft hydraulic systems compared to females technicians. Random samples of 7 males and 7 females technicians were chosen to assemble similar hydraulic systems. The following table shows the data in minutes.

Males

7

21

27

18

20

24

16

Females

8

18

24

19

16

19

16

  1. At the 5% significance level, can you conclude that males’ performance is higher than that of the females?
  2. Construct a 95% confidence interval for the difference of the two means.

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