You decide to test how accurate a certain tv station's weatherman is with his predictions. over the course of several months, you note that there were 40 days where the weatherman said that there was a 60% chance of rain. it subsequently rained on 21 of those days. evaluate the weathermans forecasting ability on the basis of this data the p-value of the hypothesis test is:

0.483

Step-by-step explanation:

Given that you decide to test how accurate a certain TV station's weatherman is with his predictions.

No of days = 40

weatherman prediction of proportion= 0.60

Observed proportion =

p difference = -0.075

(Two tailed test)

Assuming H0 to be true, std error =

Test statistic Z = p difference/std error

= -0.7016

p value = 0.483

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .