Ten years ago 53% of American families owned stocks or stock funds. Sample data collected by the Investment Company Institute indicate that the percentage is now 44%.

Assume the Investment Company Institute sampled 300 American families to estimate that the percent owning stocks or stock funds is 44% this year. What is the p-value for your hypothesis test? If required, round your answer to four decimal places. Do not round your intermediate calculations.

Please explain thoroughly. I am burned out right now and hitting my head against the wall to get the answer