# Math Help - Hypothesis Testing p-value

1. ## Hypothesis Testing p-value

My group has been arguing over this question...

Some are getting 0.299 for the p-value, personally I'm getting 0.298.

Bill claims that, on average, books are more expensive to buy for the Kindle eBook reader than the Kobi eBook reader. She randomly sampled 50 books sold for the Kindle, and got a sample mean = $31, and s =$26. Then she randomly sampled 45 books sold for the Kobi, and got a sample mean = $28, and s =$29.

If you conduct a hypothesis test with respect to Bill’s claim (0.05 significance level), what is the p-value that you obtain? (Use Case I)
If someone could explain which is the correct answer, and how would it be calculated, it would be much appreciated, thanks .

2. ## Re: Hypothesis Testing p-value

Originally Posted by Coukapecker
My group has been arguing over this question...

Some are getting 0.299 for the p-value, personally I'm getting 0.298.

If someone could explain which is the correct answer, and how would it be calculated, it would be much appreciated, thanks .
Well you are not far off! Are you assuming equal variance? What is case I? Do you have the whole data set?

3. ## Re: Hypothesis Testing p-value

Equal variance is assumed, that's what is meant by case I. :P. No data set is given, only what I posted :<.

4. ## Re: Hypothesis Testing p-value

No worries, enter your data here

In-Silico Online

or here

I get p=0.298 therefore do not reject $H_0$