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The data below are the ages and systolic blood pressure (measured in millimeters of mercury) of 9 randomly selected adults. Age, x 38 41 45 48 51 53 57 61 65 Pressure, y 116 120 123 131 142 145 148 150 152
a) Treating the age as the explanatory variable, x determine the estimates of ß1 and ß0.
b) Assuming the residuals are normally distributed, test whether a linear relationship exists between the age and blood pressue at the ?=0.05 level of signifigance.
c) Construct a 95% confidence interval for the slope of the true linear regression line.
A step by step solution is included to explain the concept of finding taylor series expansion of a given polynomial of degree 4 at a given ponit. The same concept can be applied to find the taylor series expansion of other polynomials and function..
Evaluate the difference in the mean ratings and find the standard deviation of the difference in the ratings, what is the chance both children are boys?
musuppose z is the standardization of x zx-musigma where mu and sigma are the mean and standard deviation of x
A window is in the shape of a square of side s, witha semicircle of diameter s above it. Please help me unable to figure out how to write a function that express the total area of the window as a function of s
1.an srs of 20 third grade children is selected in chicago and each is given a test to measure their reading ability.
The standard deviation of their rents is $80. (a) What is the standard error of the mean? (b) What are the degrees of freedom for a one-sample t statistic?
Suppose that we generate a random sample from a given dis- tribution. If it is desired that the probability that the sample mean will be within 2 standard deviations of the mean of the distribution is at least .99, how large should the sample size..
Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.
suppose that the correlation r between two quantitative variables was found to be r 0. this means thatthere is a
below are the ages of people arrested on theft charges at a mississippi county jail. for this sample calculate the
Easy-Fly Airline took a random sample of 25 flights to determine if the mean time it takes for luggage to reach the travelers departing from a flight is less than 15 minutes. The sample mean was found to be 13.8 minutes with a standard deviation o..
At the .05 significance level, is the number of units produced on the afternoon shift larger?
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