I need help with statistics homework?

Posted on 2014-04-16 06:52:00 in Statistics by TAYLOR

A publishing house conducted a survey to assess the reading habits of teenagers. The company publishes four types of books specifically tailored to suit the interests of teenagers. Management hypothesizes that there are no differences in the preferences for the four types of books. A sample of 1600 teenagers indicated the following preferences for the four book types.



Publication Frequency of Preference

Non-Fiction 350

Mystery 500

Humor 450

Short Stories 300

TOTAL 1600



Management needs your expertise to determine whether there are differences in preferences for the four types of books.



State the null and alternate hypotheses in plain English sentences (not equations).



What is the calculated chi-squared value? Show your calculations.



The tabled chi-squared value for 5% significance and three degrees of freedom is 7.81. Can you reject the null hypothesis? Why or why not?



side note: I need somebody to show me step by step on how to do the problem. If I can figure this part out then I will be able to figure out the rest! I seriously need help. My professor has cancelled classes 3 times in a row (a week and a half), but still expects us to do the homework even though we have not learned it.



I understand what a null and alternate hypothesis is; however, I don't know exactly what it would be in this situation.

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