57 413
Assignments Done
Successfully Done
In February 2018
Your physics homework can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Our experts will gladly share their knowledge and help you with programming homework. Keep up with the world’s newest programming trends.

Answer on Statistics and Probability Question for moe dawn

Question #5942
null hypothesis that dancing does not cause rain. If the probability of it raining on a given day is 25% (irrespective of any dancing), how many successive days of rain would be needed to be able to reject the null hypothesis at a 0.01 level of significance, and thus convince that it is wrong?
how many successive days of rain would be need at a 0.05 sig level to be able to reject the null hypothesis?
Expert's answer
Let N be a number of successive days of rain. We can find N using chi-squared
test. Number of degrees of freedom equals 1 and corresponding values in a table
for chi-square distribution (for 0.01 and 0.05 levels) are 6.64 and 3.84 .
Chi-squared statistics equals 3N and 3N>6.64 or 3N>3.84 to reject null
hypothesis. So we need 3 or more successive days of rain to reject the null
hypothesis at level 0.01 and 2 or more successive days to reject it at level

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!


No comments. Be first!

Leave a comment

Ask Your question