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For the following set of scores2,3,2,4,5,2,4,2,1,71,3,3,2,4,3,2,1,3,2
a) Create the frequency distribution tableb) Draw the polygon showing distributionc) Explain the distribution using the following characteristics
1. Determine the shape of the distribution2. what score best identifies the center (average) for the distribution3. are the score clustered together? Or they spread out across the scale?
In a binomial distribution n = 8 and π = 0.2. Determine the probabilities of the following events.
Are number of toilet breaks and amount of beverage consumed related? Describe how? Provide the value of statistic and probability value.
Find the margin of error for the estimator in this survey for a 95% level of confidence . In part c, what does the 95% level of confidence imply in relation to the margin of error?
Random sample of 100 people yielded following data on number of tissues utilized in a cold: x-bar = 38, s = 20. By using sample information provided, compute the value of test statistic for the relevant hypothesis test.
The controller of Dash Shoes Inc. instructs you to prepare a monthly cash budget for the next three months. You are presented with the following budget information:
A certain airplane has two independent alternators to provide electrical power.
Using the p- value approach, test the hypotheses at the 5% level of significance.
You are interested in determining the average cost of a 3-minute telephone call to locations within the continental U.S.
Assume that a simple random sample is selected from a normally distributed population, use eith the P-value method or the tradiitonal method of testing hypotheses.
An internet company has redesigned its website to improve the online experience of its customers. To test whether the new design has improved its customers' experience it has asked people to comment on whether they prefer the new format or not.
what is the chance the average contents of the cans will be less than advertised and what will be the standard deviation of the number of men who help at home, based on the first survey
In 2006, the Florida poll conducted by Florida International University asked whether current environmental regulations are too strict or not too strict. Of 1200 respondents. 229 said they were too strict. Find and interpret a (a) 95%. (b) 99% con..
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