Hey y’all, I remember a few people commenting on my last post about statistics class saying that they may be able to help me if I get stuck. I missed class this week due to a back injury and I’m having a hard time getting my head around this new material I’m trying to teach myself- all about different methods for hypothesis testing. I just finished up normal distributions, finding T values and chi squared distributions. Does anyone have any resources for me?
Here are samples of what I’m being asked to do:
1. Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test.
H0: p = 0.7 vs H1: p > 0.7
n = 200
x = 145
α = 0.1
Find the p-value, round to three decimal points.
2. In February 2008, an organization surveyed 1034 adults aged 18 and older and found that 539 believed they would not have enough money to live comfortably in retirement. Does the sample evidence suggest that a majority of adults in a certain country believe they will not have enough money in retirement? Use the α=0.01 level of significance.