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The following table gives the 2002 median annual salaries of various categories of scientists in the United States holding PhDs.
Construct a bar graph for these data with "Annual Salary" on the axis and "Category of Scientist" on the Y axis. Arrange the categories so that the salaries decrease from left to right.
a. Calculate the range and the standard deviation. (Use either definition for the range) b. Add 2 points to each score and compute the range and the standard deviation again. Describe how adding a constant to each score influences..
The file HotelPrices contains the prices in English pounds
Compute the power of the acceptance region - A randomly selected woman is 1 inch taller than the average woman in the sample. Would you predict her earnings to be higher or lower than the average earnings for women in the sample? By how much?
We are studying hypothesis testing. My instructor asked: Once the p-value is determined, how do you decide whether or not your evidence is strong enough? In other words, what is your criteria for rejecting the null hypothesis?
the initial research proposal will consist of the following six items1. identify a business research topic2. define the
The mean height for a population is 65 inches with a standard deviation of 3 inches. Let A and B denote the events below: A = The mean height in a random sample of 25 is within 1 standard deviation of the population mean.
Find the number of people who will score between 458 and 556.
Based on this table, how much profit can be made by assembling and inspecting only deluxe phones (X2)?
Determine the correlation coefficient. Find the predicted value of Y given X = 75. Give an interpretation of the predicted value in the context of the problem.
The maximum acceptable variance in the weight of a product is 0.0004. Suppose the sample variance for 30 parts turns out to be 0.0005. Test whether the population variance specification is being violated. Use α = 0.05
If a Pie Chart were constructed for the weights of the salmon, what would be the measure of the central angle for the class weighing 200-249 grams?
The table below contains estimates from a linear regression predicting respondents' views on an abortion views scale going from 0 to 10 where higher values indicate more pro-choice views and lower values indicate more pro-life views with the indep..
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