Question

The average income of American women who work full-time and have only a high school degree is $33, 230. You wonder whether the mean income of female graduates from your local high school who work full-time but have only a high school degree is different from the national average. You obtain income information from an SRS of 62 female graduates who work full-time and have only a high school degree and find that x = $32, 052. What are your n and alternative hypotheses?

Answer 1

Answer: n = 62

Null hypothesis H0 : x = $33,230

Alternative hypothesis Ha : x </> $33,230

Step-by-step explanation:

n = number of samples used for a statistical analysis.

n = 62

In this analysis only 62 samples of female graduates who work full-time and have only a high school degree

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean.

While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

Therefore, for the case above;

H0 : x = $33,230

Ha : x </> $33,230

Where x is the average income of American women who work full-time and have only a high school degree