A. Find the length of the confidence interval.1) 0.355

Answered: A. Find the length of the confidence…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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d, e and f
Using a T table, find the critical value of t for a 99% confidence interval with dfequals 14.
Use the given confidence interval to find the point estimate for the population mean 67.3<μ<112.9
The critical value of t for a 98% confidence interval with dfequals 7? The critical value of t for a 90% confidence interval with dfequals 112?
The confidence interval for the population mean is often presented as Lower Limit << Upper Limit or 2+ MoE (Sample Mean Margin of Error) Determine the missing values for the 3 confidence intervals in the table below. Report answers accurate to 2 (two) decimal places. Margin Lower Upper Sample Mean of Error Limit Limit Interval 1 1.4 100.6 Interval 2 147.81 162.08 Interval 3 9.31 96.6
I just need answers for part b) but if you can answer them all step by step will be appreciated. :)
If n=41n=41, ¯xx¯=31, and s=8s=8, construct a confidence interval at a 99% confidence level. Give your answers to one decimal place. < μμ <
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Look at the confidence intervals described in the four options below. Then, imagine that for each of these confidence intervals, someone was to do a matching hypothesis test with the test value shown. On which of the four options do you predict that the matching hypothesis test would REJECT H0? Group of answer choices A confidence interval of -1.2 < µ1 - µ2 < +4.2, and has a test value of µ1 - µ2 = 0 A confidence interval of -4.2 < µ1 - µ2 < -1.2, and has a test value of µ1 - µ2 = 0 A confidence interval of -4.2 < µ1 - µ2 < +1.2, and has a test value of µ1 - µ2 = 0 A confidence interval of -3.5 < µ1 - µ2 < +3.5, and has a test value of µ1 - µ2 = 0
We want to estimate the number of pounds of ground beef produced during a month. The firm processes 25,000 cows every year in this plant, and samples 500 cows for this investigation. This sample produced ?̅= 290 lbs ground of beef per cow with a sample standard deviation of s = 40 lbs. The plant is paid $.75/lb for the beef. a) Find a 90% confidence interval for ground beef. b) The plant manager bragged about the productivity of his workers and gave them a bonus because he says they slaughtered 2,500 cows and made $560,000 for the plant this month. Should the board of directors investigate? Why or why not?
Solve Question 2 Please show work
11

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A. Find the length of the confidence interval. 1) 0.355