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The observer-participant relationship is an important consideration in the design of observation studies. What kind of relationship would you recommend in each of the following cases?
a) Observations of professional conduct in the classroom by the student author of a course evaluation guide.
b) Observation of retail shoppers by a researcher who is interested in determining customer purchase time by types of goods purchased.
c) Observation of a focus group interview by a client.
d) Effectiveness of individual farm worker organizers in their efforts to organize employees of grape growers.
in testing the difference between two population means which of the following assumptions is not true for the
Construct a 95 percent confidence interval for the true mean.
what does p .05 mean? what are some misconceptions about the meaning of p .05? why are they wrong? should all
Suppose that a group of 48 students who took the SAT was chosen. If you wanted to calculate a probability for the average SAT score for these 48 students, what is the standard error.
a chemical company has three plants. due to a shortage of labor and the intense heat involved in production only one
Test the hypothesis that the annual incomes of Teachers in areas of more than 500,000 are significantly more than those in areas of less than 100,000. Use the 5% level of risk.
In the instance in which the selected theory of motivation was not applicable to your workplace experience, assess the need to develop and create new theoretical models of motivation in today's changing work environment.
1. signatures to a petition were collected on 676 sheets. each sheet has enough space for 42 signatures but on many
an automobile manufacturer is concerned about a fault in the braking mechanism of a particular model. the fault can on
The time to complete a construction project is normally distributed with a mean of 60 weeks and a standard deviation of 4 weeks. What is the probability the project will take longer than 65 weeks?
Does it appear that the treatment is effective? That is, is it very likely that we would observe only 6/200 contract hepatitis when 7% of the population is known to do so?
A survey of 85 families showed that 36 owned at least one DVD player. Find the 99% confidence interval estimate of the true proportion of families who own at least on DVD player.
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