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Students t test for women's height

In Sweden, a scientific journal stated that the average woman is 69 inches tall, with a standard height deviation of 2 inches.

What do you think the probability is the 1st woman I meet is taller than 70 inches?

During my last trip there, I met 4 women and the average height of all 4 women was 71 inches. Using .05 significance level, should I agree with the findings in the scientific journal or should I dispute it?


Solution Summary

Students t test for women's height. The solution includes null hypothesis, alternative hypothesis, significance level, critical value, p-value with interpretations.