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Why is the concept of making predictions such an important part of statistics? Also, give an example that illustrates the importance of this concept within the business world. Explain your answers in detail.
Suppose that a random sample of 15 consumers agrees to participate in a study aimed at proving this claim, and that their results, extrapolated to savings per gallon per year are ($): 0.95, 1.07, 1.09, 1.12, 0.85, 1.17, 1.25, 0.82, 0.99, 1.02, 1.1..
Find out the probability that the return for common stocks will be more than 0%.
Given that the pair of hypotheses that correspond to the claim are H0=500. Find the critical value for the hypothesis test.Assume that the level of significance is 0.02.
test the hypothesis that more females use instagram than males. samples of 500 female and 500 males were chosen and 430
a sample of 344 subscribers of time magazine shows the mean time spent using the internet is 14.4 hours per week
The Gallup Organization polls 1000 individuals to estimate the percent of American adults who approve of the President's job performance.
The distribution of the width of a standard piece of computer paper is normal with an expectation
I have 400 feet of lumber to frame a rectangular patio. I want to maximize the area of the patio. What should the dimensions of th patio be.
State the appropriate null and alternative hypotheses to assess whether women are taller today.
Explain why the graph you provided gave a good visual representation of the data. Determine the standard deviation and variation, and explain their importance in statistical analysis of a data set.
What is the probability that the flight will be more than 8 minutes late? What's the expected flight time?
Four components of a time series are secular trend, cyclical variation, seasonal variation, and irregular variation (Lind, 2005). Briefly describe each of these components and provide a real-world example of one component.
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