Question: The computer anxiety rating scale takes measures of the level of anxiety of an individual provoked by the computer in a scale of 20 ( no anxiety) to 100 ( maximum level of anxiety). Researchers of the University of Miami applied the scale to 172 students of administration. One of the objectives of the study was to determine whether it exists a difference between women and men in the levels of anxiety provoked by the computer.

1. Using the level of significance of 0.05. ¿Does it exist evidence of the difference in the mean of anxiety experimented from the computer use between male students and female students? Write and describe all the steps and procedures of hypothesis.
2. Determine the value p and interpret its result.
3. ¿What suppositions would have to be made of both populations to justify the use of the t test?

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