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Consider the equation for the acceleration due to gravity, G ,given in Section 3-12.3 (Use propagation of error (delta method)). Suppose that E(T) = 5.2 seconds and V(T) = 0.0004 square second . Computer the mean and variance of G.
Find an equation of the least squares regression line. Please show your work. Is there a linear correlation between "x" and "y" at the 0.01 significance level? Please justify your answer.
It has been evaluated that 30% of all farms are family-owned. In sample of 12 farms, determine the probability that exactly 3 farms are family owned?
If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours?
use the least squares regression line from question 1. 70.509 0.293 circumference one man had his waist circumference
he length of time a person spends waiting in a physician's office for an appointment can be a frustrating experience. The results below are the responses of internists from two multispecialty group practices to the following question:
Compute the proportion p (hat) for your sample Show your computation. Find a 95% confidence interval for p. What is the margin of error in this confidence interval? What is the meaning of this interval with respect to your data and project?
Chi-square test for goodness of fit - difference in the use of the four entrances?
The national sporting goods association conducted a survey of persons 7 years of age or older about participation in sports activities the total population in this age group was reported at 248.5 million with 120.9 million male and 127.6 million f..
a researcher selects a sample of 6 professors 6 students and 6 administrators at a local school and has them rate the
What is an independent sample and what is a related sample? When should researchers use varying hypothesis tests for the different types of samples?
Recently, students in a marketing research class were interested in the driving behavior of students. Specifically, the marketing students were interested if exceeding the speed limit was related to gender.
Suppose the waiting time at a restaurant is normally distributed with a mean of 12 minutes and a standard deviation of 6 minutes.
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