Hypothesis Test One Proportion

Hypothesis Test One Proportion

This discussion board post has 3 parts.

Use your textbook or google to find a problem for a hypothesis test for one proportion such as the one below.  (It is the same one as the introduction)  Make sure to post your problem no later than 11:59 on Wednesday night. Make sure you solve your own problem this week…you will need the information for next week)

Pick another student’s problem and solve it. Make sure to include your null and alternative hypothesis, your test statistic, your p-value, decision, and conclusion in the context in your response. (If someone has already replied to the problem then please pick a different one.  If we have an odd number or if one is not replied to by Sunday night, I will post a response…I don’t promise it will be the correct response.)

During Reading Week, go back and respond to the person who worked on your problem. Let them know if they got it correct and if they didn’t let them know what the correct answer is.

How cool is Facebook?  In a recent GenX2Z American College Student Survey, 90% of female college students rated the social network site Facebook as “cool.”  The other 10% rated it as “lame.”  Assume that the survey was based on a sample of 500 students.  A marketing executive at Facebook wants to advertise the site with the slogan “More than 85% of female college students think Facebook is cool.”  Can he conclude that the proportion of female college students who think Facebook is cool is greater than 0.85?