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Find the critical value and test whether there is Greyhound breeder's dogs are faster than the average greyhound using large sample test.
1. Using the z table in Table E of Appendix C, what are the critical values for a two-tailed test when a = 0.03 .
a. ± 2.17 b. ± 2.05 c. ± 2.33 d.± 1.88
2. The average speed of greyhound dogs is about 18.8 meters per second. A particular greyhound breeder claims that her dogs are faster than the average greyhound. In a sample of 45 of her dogs, they ran, on the average, 19.2 meters per second with a standard deviation of 1.4. Is her claim correct if she is willing to accept an error rate of 2.5 out of 100?
a.Yes, because 1.92 falls in the noncritical region b.No, because 0.04 falls in the noncritical region c.Yes, because 0.04 falls in the noncritical region d.No, because 1.92 falls in the noncritical region
Students are the University of New Harmony received 10, 000 course grades last semester. The table below breaks down these grades by which school of the university taught the course.
The data below show the average daily high temperature for Chicago, Illinois, for twelve recent spring and summer months. Create a stem-and -leaf diagram for the data.
The 'interaction effect' was also important. By using the means in the table above write a statement explaining how the anti-anxiety drug appears to affect anxiety. Are the outcomes consistent with the hypothesis proposed by the researchers?
Create a hypothesis and perform a series of tests to determine if there is any fundamental difference in the findings.
The average number of putts per hole for each player and their average driving distance is used to predict their total winnings using the multiple regression model where the deviations εI are assumed to be independent and Normally distributed with..
Determine the probability that a randomly selected sample of 31 patients would produce an average diameter of 6.6 mm or less for the non affected tendon?
Determine the strength of the causal relationship between monthly sales and new home construction by using correlation.
Then explain your answer to someone who has never had course in statistics (but who is familiar with mean, standard deviation, and Z scores.)
Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb
If writing scores for population have standard deviation of s = 20, does sample give sufficient evidence to conclude that new composition course has significant effect? Suppose a two tailed test with a = 0.05.
At the .05 significance level, is the number of units produced on the afternoon shift larger?
Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-Value or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim.
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