Question

Test the hypothesis that the proportion of students who wish OBAMA was still president=.3. Use a .10 significance level, a two-tail test, and the following data: A sample of 100 students has 40 who wish OBAMA was still president

NB: Please can you tell me the table for  Z critical Value, Table for P-Value, Table for T critical Value, Table for x^2(that is X raise to power 2) Please this is a self-trained student. I have been trying to get the table with the solution I have but I could not figure it out.) I will really appreciate if you can give me the example of each table with the degree of freedom and Z alpha.

Thanks so much

Answer 1

Here claim is that the proportion of students who wish OBAMA was still president=0.3

So hypothesis is vs

Now

Hence test statistics is

P value is

As P value is less than alpha=0.10 we reject the null hypothesis

Hence we do not have sufficient evidence to support the claim that p=0.3

Regarding tables i would suggest you can use only calculators which are available to compute the required critical values and P value. Just google it you will receive all of them.