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Suppose that n = 9, ¯X = 85 and the sample standard deviation is s = 2. Test H0: μ = 83 against H1 : μ ≠ 83, stating any assumptions made about the underlying population, and the testing procedure.
Two bonus points for rigorously proving Xt and Xt+1 are not independent. Let Xt=1+et-0.5et-1, t=1,2,3,..., where et~IID N(0,2), variance of et is 2. Calculate the mean of Xt.
Give an example of a null and alternative hypotheses. This can be a personal item or something at work. Additionally, identify the Type I and Type II Errors that could occur with your decision-making process.
Explain what an outlier is. Then, if there are any outliers in the Project 1 Data Set, what are they? If there are no outliers, say no outliers.
Test the significance of a correlation coefficient. Explain the coefficients used in regression analysis. Use regression analysis to analyze a time series
A producer of pleasure boats wants to maximize revenue during the next month. Two types of boats are sold, x1 and x2. Type x1 sells for $40,000 and type x2 sells for $30,000. The x1 boats require 10 weeks of labor and 600 board feet of lumber each..
the reading speed of second grade students in large city is approximately normal with a mean on 90 words per minute and
a simple random sample of families living in a chicago suburb was selected. each family was asked to estimate the
Using the probabilities above what is the expected size of family you draw?
1. Restate the question as a research hypothesis and a null hypothesis about the population. 2. Set your significance level at .05 3. Determine the significance level of the sample's ANOVA, which "Sig." identifies exactly.
binomial distribution. the centers for disease control say that 30 of high school students smoke cigarettes. suppose
Discuss how the statistical application of Pearson r is used for hypothesis testing. Through application of the Spearman Correlation discuss what type of data the Pearson formula can be used for.
If s(x) = [1-(x/100)]1/2, 0 ≤ x ≤ 100, evaluate a. 17p19 b. 15q36 c. 15|13q36 d. μ(36) e. E[T(36)].
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