Reference no: EM131435528
Some studies have shown that in the United States, men spend more than woman buying gifts and cards on Valentines Day. Suppose a researcher wants to test this hypothesis by randomly sampling men and woman with comparable demographic characteristics from various large cities across the United States to be in a study. Each study participant is asked to keep a log beginning 1 month before Valentines Day and record all purchases made for Valentines Day during that 1 month period. The resulting data are shown below. Use these data and a 1% level of significance to test to determine if, on average, men actually distributed in the population variances are equal. Make sure you clearly state both the null and the alternative hypotheses in full sentences. Include the output table; then, clearly state the conclusion in the same manner (do not simply say "accept/reject null" and explain how you arrived at this conclusion (based on which metrics) Men 107.48, 143.61, 90.19, 125.53, 70.79, 83, 129.63, 154.22, 93.80, 111.25, 78.6, 89.35 Woman 125.98, 59.32, 96.35, 80.62, 77.60, 84.34, 75.21, 68.48, 65.84, 126.11, 82.54, 123.50.
|
How might each argument be made better
: PHI103- Is one better than the other? If so, what makes that one better? Is each a fair presentation of what someone taking that position would say? Are the premises reasonable? How might each argument be made better?
|
|
Significant difference in level of anomie in suicide rates
: He then obtained the suicide rates for each cite based on the number of suicides per 100,000 in the population. Which statistical procedure would you apply to determine whether there is a significant difference in level of anomie in suicide rates?
|
|
Distribution of the resulting sample means
: A process consists of randomly selecting 250 adults, measuring the grip strength (right hand only), then finding the sample mean. Assuming that this process is repeated many times, what important fact do we know about the distribution of the resul..
|
|
What data collection strategies did the researchs use
: What data collection strategies did the research(s) use? What ethical issues emerged in the research? What were the challenges/limitations of the study? What is your overall assessment of the study? Was the approach effective?
|
|
Woman buying gifts and cards on valentines day
: Some studies have shown that in the United States, men spend more than woman buying gifts and cards on Valentines Day. Suppose a researcher wants to test this hypothesis by randomly sampling men and woman with comparable demographic characteristic..
|
|
Parametric and nonparametric inferential statistical tests
: Module 4 focuses on conducting parametric and nonparametric inferential statistical tests: t-tests, chi-square analyses. Using the website link http://www.ats.ucla.edu/stat/mult_pkg/whatstat/, please take some time to answer the following question..
|
|
Standard deviation of the sampling distribution
: A. What are the shape, mean, and standard deviation of the sampling distribution of the sample proportion for samples of 300? B. What is the probability that the sample proportion will fall within 3 percentage points (+/- 0.03) of the population pr..
|
|
Probability of heads on a toss of a particular coin
: You feel that ~p , the probability of heads on a toss of a particular coin is either 0.4, 0.5, or 0.6. Your prior probabilities are P(0.4) = 0.1, P(0.5) = 0.7, and P(0.6) = 0.2.
|
|
What will difficult in moving away from fee-for-service care
: In this week's discussion, discuss barriers to implementing a policy of focusing on "quality" rather than "quantity." What will be difficult in moving away from "fee-for-service" type care
|