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The city of Denton conducted a census to know how its residents evaluated its recently announced South Denton Revitalization Plan on a 100-point scale that ranged from 1 (extremely opposed) to 100 (extremely supportive). The results showed that their responses were normally distributed with the mean of 45 and the standard deviation of 10. For each of the following questions, draw a diagram of a distribution curve and show your calculations. Always round to the nearest fourth decimal place.
What is the raw score above which 63% of respondents' scores fall?
You are asked to design a study measuring how nutritional status is related to serum lead levels in children.
In an ANOVA table for simple linear regression, the degrees of freedom for the regression mean square is equal to: And The sample coefficient of correlation
What is the probability that if you randomly select a student on campus, this is student is male OR majoring in business?
You are investigating the flight characteristics of different kinds of birds. You collect a sample of 33 European swallows (Hirundo rustica) and measure their air-speed velocity in a borrowed wind tunnel.
GREEN COMPANIES In a survey conducted in 2007 of 1004 adults 18 yr and older, the following question was asked.
i. how many strings of ten digits length can be formed using only the digits 12345? digits may be used more than once
Correlation between the two variables based on scatter plot - Show the scatter plot for the variables.
what is the probability of an event? what are mutually exclusive events? what does collectively exhaustive mean?how can
the acceptable level for insect filth in a certain food item is 3 insect fragments per 10 grams. a sample random of 60
In about 300 words (indicate your word count), provide an executive summary of your analysis and findings to Mr. Nitin with respect to the opportunities to maximise revenue.
Construct the 90% confidence interval for the difference in the means of the populations of all children taking Version A of such a test.
Find the range, standard deviation, and variance for the scores.
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