Use technology to construct the confidence intervals for the population variance o and the population standard deviation o. Assume the sample is taken from a normally distributed population.c= 0.90, s= 33, n= 20The confidence interval for the population variance is ( )(Round to two decimal places as needed.)CleHelp me solve thisView an exampleGet more help -DIIDD80F6F7F5escF3F4F2F1&

Answered: Use technology to construct the…

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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The combined SAT scores for the students at a local high school are normally distributed with a mean of 1462 and a standard deviation of 297. The local college includes a minimum score of 1759 in its admission requirements.What percentage of students from this school earn scores that satisfy the admission requirement? P(X > 1759) = ________ %
find the estimsated standard deviation
Pulse Rates of Males Refer to Data Set 1 “Body Data” in Appendix B and use the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. b. Treating the unrounded values of the mean and standard deviation as parameters, and assuming that male pulse rates are normally distributed, find the pulse rate separating the lowest 2.5% and the pulse rate separating the highest 2.5%. These values could be helpful when physicians try to determine whether pulse rates are significantly low or significantly high.
H0 , test statistic, and p value please
Pls help ASAP ASAP.
Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 29 drivers the standard deviation is 9.9 miles per hour. At =α0.10, is the driver correct? Assume the variable is normally distributed. State the hypotheses and identify the claim with the correct hypothesis. H0: H1: Claim or Not a Claim? This Hypothesis test is one-tailed or two-tailed? What is the Critical Value?
Also included in question find estimated variance of errors, estimated variance of slope, and 90% and 95% confidence intervals for slope. Thank you so much
Age of College Students Find the 90% confidence intervals for the variance and standard deviation of the ages of seniors at Oak Park College if a random sample of 20 students has a standard deviation of 2.2 years. Assume the variable is normally distributed. Use the chi-square distribution table to find any chi- square values to three decimal places. Round the final answers to one decimal place.
Breaking Strength of Steel Cable The average breaking strength of a certain brand of steel cable is 2000pounds, with a standard deviation of 100pounds. A sample of 20 cables is selected and tested. Find the sample mean that will cut off the upper 91% of all samples of size 20 taken from the population. Assume the variable is normally distributed. Round intermediate z-value calculations to 2 decimal places and round the final answer to at least 2 decimal places. The sample mean that will cut off the upper 91% of all samples of size 20 is ____ pounds.

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