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Your friend tells you that the proportion of active Major League Baseball players who have a batting average greater than .300 is greater than 0.56, a claim you would like to test. The hypotheses for this test are Null Hypothesis: p ≤ 0.56, Alternative Hypothesis: p > 0.56. If you randomly sample 24 players and determine that 14 of them have a batting average higher than .300, what is the test statistic and p-value?
1) Test Statistic: 0.23, P-Value: 0.818
2) Test Statistic: -0.23, P-Value: 0.591
3) Test Statistic: 0.23, P-Value: 0.591
4) Test Statistic: 0.23, P-Value: 0.409
5) Test Statistic: -0.23, P-Value: 0.409
Describe the sampling distribution of the sample proportion
Assuming that the population standard deviations are the same, perform a two independent samples t-test on the hypotheses Null Hypothesis: μ1 = μ2, Alternative Hypothesis: μ1 ≠ μ2. What is the test statistic and p-value of this test?
Assuming that the dogs did better than what would be expected with random guessing, did they do well enough to be used for actual medical diagnoses? Why or why not?
Using the 0.01 significance level, can we conclude that there is a positive correlation between the variables?
Claculate the exponential also adjusted exponential smoothing forecast and linear trend forecasting. The hotel has experienced the following occupancy rates for the past 9 years.
Compute the mean number and median number of apples in a bag.
At the .05 significance level, can we conclude that the guideline is still reasonable?
Using t test for significance of slope to determine whether the independent variable is a significant predictor of the dependent variable - Find the sum of the least squares slope and intercept parameter?
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
Calculate the mean absolute deviation based on the 2-day moving average. You can have a forecast and an actual temperature.
From Group of 40 People, a jury of 12 people is selected. In how many various ways can a jury of 12 people be selected?
If p denotes the p -value of the corresponding hypothesis test, which of the following is true?
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