In 1989, the average age of a divorced man was 36.2 years of age, according to data obtained from the U.S. Department of Health and Human Services. A sociologist wants to investigate if the average age of a divorced man is now different. She randomly selects 32 divorced men and finds that the mean age is 32.5 years with a sample standard deviation s = 9.6. At a 95% level of confidence, we wish to investigate if the average age of a divorced man is now different than it was in 1989.
24. State the Null and Alternate Hypothesis for this study.
A) H0: µ = 33.9 H1: µ 33.9
B) H0: µ = 36.2 H1: µ 36.2
C) H0: µ >= 33.9 H1: µ <33.9
D) H0: µ >= 36.2 H1: µ < 36.2

Respuesta :

On solving the provided question, P = 0.037 reject H o,P-value < 0.05 ( level of significance )

What is a null hypothesis?

If there is no statistical significance between two variables, the null hypothesis is that there isn't any. The researcher or experimenter generally aims to refute or undermine the theory. An alternate explanation is that the two variables have a statistically significant association.

based on P value -

P = 0.037 reject H o

P-value < 0.05 ( level of signifance )

we are 95% y confidence that the average age of divorced man is how different than it was in 1989.

we would have concluded that the average age is not different wher, it really was different.

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