Question
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
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.
Magnitude of Earthquake | |||||||||
0.720 | 0.740 | 0.640 | 0.390 | 0.700 | 2.200 | 1.980 | 0.640 | 1.220 | 0.200 |
1.640 | 1.310 | 2.950 | 0.900 | 1.760 | 1.010 | 1.260 | 0.000 | 0.650 | 1.460 |
1.620 | 1.830 | 0.990 | 1.560 | 0.390 | 1.280 | 0.830 | 1.330 | 0.540 | 1.250 |
0.920 | 1.000 | 0.790 | 0.790 | 1.440 | 1.000 | 2.240 | 2.500 | 1.790 | 1.250 |
1.490 | 0.840 | 1.420 | 1.000 | 1.250 | 1.420 | 1.350 | 0.930 | 0.400 | 1.390 |
What are the hypotheses?
A. H0: μ=1.00 in magnitude
H1: μ>1.00 in magnitude
B. H0: μ=1.00 in magnitude
H1: μ≠1.00 in magnitude
C. H0: μ≠1.00 in magnitude
H1: μ=1.00 in magnitude
D. H0: μ=1.00 in magnitude
H1: μ<1.00 in magnitude
2. Identify the test statistic.
t = _________(Round to two decimal places as needed.)
3. Identify the P-value.
The P-value is _________ (Round to three decimal places asneeded.)
4. Choose the correct answer below.
A. Reject H0 There is insufficient evidence to conclude that the population of earthquakes has a mean magnitude greater than 1.00.
B. Reject H0 There is sufficient evidence to conclude that the population of earthquakes has a mean magnitude greater than 1.00.
C. Fail to reject H0 There is insufficient evidence to conclude that the population of earthquakes has a mean magnitude greater than 1.00.
D. Fail to reject H0 There is sufficient evidence to conclude that the population of earthquakes has a mean magnitude greater than 1.00.
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