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1. The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression. Conduct a hypothesis test to determine if the true proportion of people in that town suffering from depression is lower than the percent in the general adult American population using significance level
a. State hypotheses, identify the claim
b. Sketch the distribution and mark rejection regions, test value and p-value
c. Make a decision (Reject Ho or fail to reject Ho). Explain how you made your decision.
d. Interpret the decision in the context of the original claim
Using these data, construct a 99% confidence interval to estimate the average number of days and excavator is rented to a client, and assume the number of days per rental is normally distributed in the population.
experimental subjects in four treatment groups are measured with the following
Draw on the materials from your Quantitative Research Methods for Professionals in Education and Other Fields and Discovering Statistics Using IBM SPSS Statistics texts, avoiding the problems richly cited in the Lavrakas, Mane, and Laszlo's 2010 a..
a marketing research firm was hired to estimate the mean prime-lending rate for banks located in the western region of
Can you please describe what I need to do to complete this? I do not understand how to plot the figures within the spreadsheet or calculate them.
a five number summary for hours studied in a week were 5 12 14 18 and 20. what was the shortest number of hours studied
underinflated or overinflated tires can increase tire wear and decrease gas mileage. a manufacturer of a new tire
Create a visual of the data you collected from the questionnaires - You need to take the data you collected and transfer it into an appropriate visual for your reader
Is contamination with the two kinds of bacteria disjoint? Explain. (c) Is contamination with the two kinds of bacteria independent? Explain.
a trucking company wants to estimate the weight load capacity of a particular brand of their flatbed trucks. in
If a random sample of 250 divorcing couples reveals that 53 of them have great difficulties in splitting their family assets, construct a 90% confidence interval for the proportion of all couples getting divorced who encounter such problems.
Explain the various lines of communications present within any given local law enforcement agency. Next, determine at least two (2) challenges and concerns that law enforcement might encounter with communication and suggest your strategy to mitiga..
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