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Brian smith sells a set of movie posters ($12) and baseball cards ($8) at a local flea market. on last sunday Brians total sales were $840. People bought four times as many movie posters as baseball cards. How many of each did Brian sell?
The following data lists the number of hours spent working during the previous week. From these data round the relative frequencies to three decimal places.
Shouldn"t say never, two have made it from maybe twenty. This one makes it, Does anyone know what the popular vote was.? What was the percentage for each leader?
a. State the appropriate hypotheses for your significance test. b. Use the sample results to compute the test statistic and the p-value.
A man is in the process of buying a new car. He has a choice of 3 engine makes, 7 body styles and 10 colors. How many different cars does he have to choose from?
The probability is 90% that the sample percentage is contained within what symmetrical limits of the population percentage?
Explain a few of the following on whatever topic you choose: decision tree, decision stragety, probability, forecasting, linear programming as it relates to work, life or interset.
Approximately how large should n be
a) Under what circumstances can z be greater than one? b) Under what circumstances can a probability be greater than one?
A thorough examination reveals there is nothing wrong with the filling machine. From a statistical standpoint, was there a "type" error made? If yes, which type? Explain.
Calculate the expected value of your portfolio and calculate the expected standard deviation of your portfolio.
Five students took a math test before and after tutoring. Their scores were as follows. Using a 0.01 level of significance, test the claim that the tutoring has an effect on the math scores.
Having obtained the z score and then derived the percentage... what does the percentage tell you?
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