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A researcher is interested in the influence of temperature on helping behavior. She prepares a 'waiting room' for the test subjects
In general, when the dependent variable is neither interval nor ratio in level of measurement -- i.e., is not numeric -- a nonparametric statistical test
What are the most common reasons you would select a non-parametric test over the parametric alternative?
Average sale of product is 87,000 on a normal curve with a standard deviation of 4,000. What is the probability that sales will be less than 81,000.
Are the events D_2 and D_4 independent? Do the appropriate calculation to answer this question. Then explain why your answer makes sense.
Give a scenario that would require you to use a non-parametric statistic, such as ranking
The contestant then has the option to stick with their original choice or switch to the remaining closed curtain.
A single amoeba is in a pond. Each day, each amoeba present in the pond will die with probability p, will split into two live amoebas with probability q.
Describe a 5-step hypothesis test for two variances for a particular claim related to your work or life environment
Analysis of a PERT problem shows the estimated time for the critical path to be 108 days with a variance of 64.
Use the ratio or interval numerical data from one of the data sets available through the Data Sets on your student website.
The dean of the School of Business at Northern Connecticut State University has been approached by a government agency in Hunan Province.
Is seat belt use independent of cigarette smoking? A study of seat-belt users and non-users yielded the randomly selected sample data.
All families in St. Martin had to opt for one of 3 available time packages. They could pay in advance for a week, a month, or six months
One car is selected at random from the cars with vehicle tags from these cities, What is the probability that this car is from Salem?
The Pearson r is a correlation coefficient appropriate for interval/ratio data.
Compute the odds of each of the following events and rank them in order of decreasing likelihood.
What is the probability that all five have different numbers? What is the probability that at least four are the same?
nterpret the results of your test, and explain the differences
In a survey about soft drinks it was found that 5% of the respondents like diet soft drinks. 12% of the respondents like the brand Coke.
My home uses two light bulbs. On average, a light bulb lasts for 22 days (exponentially distributed).
Three groups of students, 5 in each group, were receiving therapy for severe test anxiety. Group 1 received 5 hours of therapy, group 2 - 10 hours
If J&B reduces the calendar price to $1 at the end of July and can sell all surplus calendars at this price, how many calendars should be ordered?
Empire State College would like to know more about the age distribution of its online statistics students. Do the data provide evidence that the mean age
Describe the results of the test, and explain how the findings from this hypothesis testing can be used to answer research question.