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Under what circumstances must a nonparametric test be used? Explain. What are the strengths and weaknesses of nonparametric tests? Can the outcomes of the nonparametric tests be generalized to populations?
40 were in favor of the Independent candidate, and 140 were undecided. At a 1% level of significance, test to see if the proportion of voters has changed. Calculate the value of the Chi-Square Test Statistic for this problem. What is it?
Test, at the 5% level of significance, whether the population standard deviation of hours spent studying is less than 10. Use the Critical value approach.
What is the probability that the participant was aged 20-40 or was influenced by ipad the most? What is the probability that the participants were influenced by ipod the most, given that the participants are aged under 20?
The probability that at least 5 children out of 10 in a sample taken from a school may have a blood level that may impair development is?
A researcher determines that 42.7% of all downtown office buildings have ventilation problems. Is this a statistic or a parameter; explain your answer.
How does multilinear regression analysis apply to a profession? Specify the dependent value and the set of predictors. Where would you get the data?
Identify your research question, your research (alternative) hypothesis, and your null hypothesis. Also, identify your independent and dependent variable.
you are testing whether there is a significant difference in the proportions of college students and similar aged non college students having accidents during the two year period. What is the value of your pooled proportion?
The percentage rates of home ownership for 8 randomly selected states are listed below. Estimate the population variance and standard deviation for the percentage rate of home ownership with 99% confidence level.
Research the topic of Job Satisfaction using the Business Source Premier Database (EBSCO) and/or the ABI Inform Global database in the Library using the instructions linked here.
They find that these 100 people lost an average of 38 hours with a standard deviation of 9.5 hours. What is the P-value for this significance test?
Analyse sample variances in order to find which test would likely be most appropriate to employ to test the equality of the population means, pooled or unpooled?
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