42. A medical researcher wants to determine how long patients survive once diagnosed with a particular form of cancer.Using data collected on a group of 400 patients with the disease, she observes an average survival time (time until death) of 38 months, with a standard deviation of 9 moCalculate the 95% Confidence Interval for the population mean survival time.Upper limitLower limit43. You have been hired by the Department of Health and Human Services to analyze the qualifications of social workers in your state.Your boss thinks that social workers in one part of the state are underqualified to serve the needs of the community where they work.You know from state data that the average social worker statewide has 10.2 years of experience.You then conducted a study by gathering a random sample of social workers from the region of concern.Your sample consisted of 203 randomly selected social workers, who had an average of 8.7 years of experience, with a standard deviation of 0.52 years.Based on your data, can you conclude that social workers from the region of concern have significantly less experience than workers statewide?mu=Hl:x-bar=n=H0:S=|alpha=Do you reject or keep the null hypothesis?z-observed=P=

Note: Please repost remaining questions as i can answer only 1 question as per my policy. Given…

12. A medical rescarcher wants to determine how long patients survive once diagnosed with a particular form of cancer. Jsing data collected on a group of 400 patients with the disease, she observes an average survival time (time until death) of 38 months, with a standard deviation of 9 Calculate the 95% Confidence Interval for the population mean survival time. Upper limit Lower limit

12. A medical rescarcher wants to determine how long patients survive once diagnosed with a particular form of cancer. Jsing data collected on a group of 400 patients with the disease, she observes an average survival time (time until death) of 38 months, with a standard deviation of 9 Calculate the 95% Confidence Interval for the population mean survival time. Upper limit Lower limit

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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