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A survey showed that 75% of the 1600 adult respondents believe in global warming. Construct a 90% confidence interval estimate of the proportion of adults believing in global warming. Show all work. Just the answer, without supporting work, will receive no credit.
The Wilcoxon rank sum of the ranks for group and The value of the Wilcoxon signed rank statistic
Give an example to show that the reported median income of a group can go down even though the group becomes economically better off.
assume the probability that a patient recovers from a rare disease is p0.75. assume 700 individuals are known to have
A recent survey indicated that 82% of single women aged 25 years old will be married in their lifetime. Using the binomial distribution.
a. Find the least-squares regression line of y on x. b. Estimate the number of children that a couple who had planned to have 5 children actually had.
A fair die is rolled some number of times. You can choose whether to stop after 1, 2, or 3 rolls, and your decision can be based on the values.
Write the Lagrangian for a one-dimensional particle moving along the x-axis and subject to a force F=-kx (with k possitive). Find the lagrange eqn of the motion and solve it.
Solve the following problems in essay form (1 to 2 paragraphs for each problem is fine). Please show all work and show how you came up with the answer.
Suppose height is regressed on age for a sample of children.
Suppose that you select a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
Your primary customers are small retailers. How would you uncover leads and convert them into prospects without personally contacting them?
Critical Thinking: Discuss the implications of: magnitude (from 0 to 1); sign ( + or -); and probability versus causality for the Correlation Coefficient (also known as the Pearson Product-Moment Correlation Coefficient).
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