7.4.5 Single Sample Hypothesis Test for a Proportion

Here is the screenshot of the basic StatCrunch solution. [My Excel calculator for running this test is found here.] As always for proportion problems, we have to check first to be sure np and nq or n*(1-p) are both > 5. If they are, we can use the normal...

Single-sample Hypothesis Test for a Proportion

Consider the following problem statement: An article in an online magazine states that 40% of home buyers found their real estate agent through referrals by a friend. However, a professor in a local college sampled 1000 home buyers and found that 426 chose an agent...