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. A Click the icon to view the display from technology. o Ho: =0 minutes O C. H, p= 0 minutes H1: µ<0 minutes H;: µ#0 minutes Identify the test statistic. (Round to two decimal places as needed.) Enter vour answer in the answer box and then.click Check Answer. make predictions.of times to the next enuntion of a padicular gevser and collect data for the erro jon e i Display from Technology ns. L hal Difference -0.409 -7.67 ****** t (Observed value) |t|(Critical value) DF 1.986 91 p-value (Two-tailed) alpha <0.0001 0.05 Print Done ng Clear All Chack Answer

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.