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Exercise and heart rate. A student project measured the increase in the heart rates of fellow students when they stepped up and down for three minutes to the beat of a metronome. The explanatory variables are step height (Lo= 5.75 inches, Hi =11.5 inches) and metronome beat (Slow= 14 steps/minute, Med =21 steps/minute, Fast= 28 steps/minute). The subject's heart rate was measured for 20 seconds before and after stepping. The response variable is the increase in heart rate during exercise.12 The data file has resting and final heart rates as well as the increase in heart rate for this study. If the randomization worked well, there should be no significant differences among the 6 groups in mean resting heart rate (variable HRrest in the data file).
(a) How many pairwise comparisons are there among the means of 6 populations?
(b) Use Tukey's method to compare these means at the overall 10% significance level.
A study reported on 6 patients with chronic myofascial pain syndrome. The mean duration of pain had been 3 years for the 6 patients and the standard deviation had been 0.5 year. provide a numerical value of chosen test and p-value. Based on the obt..
professor green gives two-month computer programming courses during the summer term. students must pass a number of
Refer to Table 2.10 on death penalty decisions. Fit a logistic model with the two race predictors. a. Test the model goodness of fit. Interpret.
College Students' Seating Choices and Motivation to Achieve.This activity is a revision of an activity found in Real Data: A Statistics Workbook Based on Empirical Data by Z. C Holcomb (1997). Published by Pyrczak Publishing.
Use this model and the formula for Sn to find the total cost of tuition and fees at public colleges for a four-year period from the school year ending in 2007 through the school year ending in 2010.
in 2009 the number of feral quaker parrots living in austin was 250. in 1992 there were only 15 feral quaker parrots.
1 at what age do babies learn to crawl? does it take longer to learn in the winter when babies are often bundled in
In addition, the cruise line has decided to plan for an additional 25% more meals than bookings. Formulate the appropriate linear program and solve using Excel Solver. Show your Work in Excel.
Use this information to find the upper and lower limits of the first class if you wish to construct a frequency distribution with 10 classes.
Find the particular solution of the following differential equation: 12(d^2y/dt^2)-3y=0 given that when t=0, y=3 and dy/dt=0.5 and could you explain the reasons for choosing y=e^(rt)
1. Given the mean equals to 33.1, and s = 1.56, compute the 99 percent and 90 percent confidence intervals for sample size n = 121. 2. Use one example to explain the differences between Type I error and Type II error and their relationship to the ..
suppose x is a normally distributed random variable with mu 13 and sigma 2. find each of the following probabilities
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