. A researcher wants to compare a sample of pure-breed German Shepherd puppies t
ID: 3158543 • Letter: #
Question
. A researcher wants to compare a sample of pure-breed German Shepherd puppies to the typical German Shepherd on skills of drug detection (measured in minutes; 0-5). He knows that the average search rate is 1.36 but does not know the variance. He wants to test if his new litter of puppies will search at a similar rate as the typical German Sheppard search dog. He expects his new litter to perform just as well as the typical search dog. 1. What are the researcher’s independent and dependent variables? a. Independent=______________________________ b. Dependent=_______________________________ 2. What are the null and alternative hypotheses (use the appropriate symbols not words)? a. H0=__________________ b. H1=__________________ 3. What is the appropriate test for the researcher to use?__________________ 4. Why is that statistic appropriate? If applicable to the specific test: 5. What are the test’s assumptions? 6. What are the test’s df? 7. What is the appropriate critical value? 8. If the research obtains a test statistic of ____ , would the researcher retain or reject H0? 9. Should the researcher do any follow up tests or make any graphs/charts? 10. Interpret the findings in APA style
Explanation / Answer
Given:
Typical German Shepherd & Pure breed German Shepherd & their rates of drug detection
Answer 1.
a. The independent variable is : Type of German Shepherd
b. Dependent Variable is : Rate of drug detection in minutes
.
Answer 2.
Null hypothesis: Average rate of drug detection is same for typical German Shepherd and pure breed German Shepherd
Alternate hypothesis: Average rate of drug detection is different for typical German Shepherd and pure breed German Shepherd
.
Answer 3.
Appropriate tetst would be "Two Sample T Test to Compare Means" Because we have two samples and we need to compare the means of these two samples.
.
Answer 4: The appropriateness of the statistic:
Reasons:
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