Question

o Question Help Park officials make predictions of times to the next eruption of a particular geyser, and collect data for the errors (minutes) in those predictions. The display from technology available below results from using the prediction errors to test the claim that the mean prediction error is equal to zero Comment on the accuracy of the predictions Use a 0.05 significance level. Identify the null and alternative hypotheses test statistic, P-value, and state the final conclusion that addresses the original claim. Click he can to view the display from technology Х Display from Technology - es ES Difference t(Observed value) It! (Critical value) DF p-value (Two-tailed) alpha 0.425 - 7.12 1.985 96 idei > <0.0001 0.06 Ente Print Done TY Cho Answer N a 3:36 PM 7/28/2019 O to search E

Answer 1

The solution to this problem is given by

Solution t (observed value ) - -7.12 It Ceutical value 1.985 Df. 96 p-value (Two -tailed) L Oooool Alloha 0.05 Null Hypother's, Hoi The mean is equal prediction error to zero. Hoi =o Alternative Hypo: Hi: Mto Test statisticst t .-7.12 P-value less than doool At Laous, Rvalue Reject Ho Conclusion: Reject Ho, the data proviele a insufficient eNielence in the favour of the And The accuracy of the predictions is not good if the estimation is not good, So, Claim,