ANSWER ALL PARTS OF BOTH QUESTIONS PLEASEEEE 22) The accompanying data table lis
ID: 3054342 • Letter: A
Question
ANSWER ALL PARTS OF BOTH QUESTIONS PLEASEEEE
22)
The accompanying data table lists the magnitudes of 50 earthquakes measured on the Richter scale. Test the claim that the population of earthquakes has a mean magnitude greater than 1.00. Use a 0.05 significance level. Identify the null? hypothesis, alternative? hypothesis, test? statistic, P-value, and conclusion for the test. Assume this is a simple random sample.
A) The test statistic for this hypothesis test is
B) The? P-value for this hypothesis test is
C) Final conclusion for this hypothesis test
23)
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) The test statistic for this hypothesis test is
B) The? P-value for this hypothesis test is
C) Final conclusion for this hypothesis test
1 Magnitudes of 50 earthquakes Magnitude of Earthquake 0.690 0.740 0.640 0.390 0.700 2.200 1.980 0.640 1.220 0.200 .640 1.310 2.950 0.900 1.760 1010 1.260 0.000 0.650 1.460 .620 1.830 0.990 1.560 0.420 1280 0.830 1.330 0.540 1.250 0.920 1.000 0.780 0.790 1.440 1.000 2.240 2.500 1.790 1.250 .490 0.840 1.420 1.000 1.250 1.420 1.350 0.930 0.400 1.390 Print DoneExplanation / Answer
23) A) the value of the test statistic is -7.78
B) P VALUE = 0.0001
C) Since p value < 0.05 , we reject the null hypothesis the result is significant.
Mean prediction is not equal to zero.
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