15 Part: 0/2 Part 1 of 2 Part: 1/2 16 Part 2 of 2 17 A sample of size n = 45 has sample mean x = 56.9 and sample standard deviation s= 9.4. 18 Continue 19 20 21 Construct a 99% confidence interval for the population mean μ. Round the answers to one decimal place. A 99% confidence interval for the population mean is <μ< 0. If the sample size were n = 54, would the confidence interval be narrower or wider? The confidence interval would be (Choose one) ▼ narrower wider 22 hp = 23 X 24 © 2022 McGraw Hill LLC. All Rights Reserved. 3 25 26 4 Submit Assignme Terms of Use | Privacy Center | Accessibilit

15 Part: 0/2 Part 1 of 2 Part: 1/2 16 Part 2 of 2 17 A sample of size n = 45 has sample mean x = 56.9 and sample standard deviation s= 9.4. 18 Continue 19 20 21 Construct a 99% confidence interval for the population mean μ. Round the answers to one decimal place. A 99% confidence interval for the population mean is <μ< 0. If the sample size were n = 54, would the confidence interval be narrower or wider? The confidence interval would be (Choose one) ▼ narrower wider 22 hp = 23 X 24 © 2022 McGraw Hill LLC. All Rights Reserved. 3 25 26 4 Submit Assignme Terms of Use | Privacy Center | Accessibilit

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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100 samples were obtained from a normal population with means = 50 and variance = 4. For each sample complete the data in the table, construct the respective interval of confidence and identify if the value of the population mean is contained in said interval. (image) The table is much longer, but you don't have to do it all. With the procedure or code of some examples it is enough to guide me with the whole table. My biggest doubt is how to find the lower and upper intervals, because I have formulated the problem several times but they give me different results. Should a t-distribution or a normal distribution be used? What formula? the entire table contains 100 samples
Please give me numerical solutions of these questions. Thanks in advance for your help.
Please help it’s not graded
You are conducting a study to see if the average female life expectancy is significantly different from 81. Your sample data (n=17) produce the test statistic t=-2.67. Find the p-value accurate to 4 decimal places.
Please tell the steps to solve this problem using Ti-84 Calculator. Testing:H0:μ=25.9H1:μ<25.9Your sample consists of 38 subjects, with a mean of 25.3 and standard deviation of 1.41.Calculate the test statistic, rounded to 2 decimal places.
You are conducting a study to see if the proportion of women over 40 who regularly have mammograms is significantly less than 50%. Your sample data resulted in a test statistic of z = - 2.655. Find the p-value accurate to 4 decimal places. p-value =
I have worked out part A but need help to work out part B. The notes say it can be done using technology- can you please show me using the Ti-84 plus. Please use step by step. if this calculator is not able to perform the functions can you do manually and again step by step? Thank you Assume that females have pulse rates that are normally distributed with a mean of=73.0beats per minute and a standard deviation of =12.5 beats per minute. a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 80 beats per minute. The probability is 0.7123 (Round to four decimal places as needed.) b. If 4 adult females are randomly selected, find the probability that they have pulse rates with a mean less than 80 beats per minute. What is the probability?
I do not understand how to calculate type II errors
Question 1
In 1940 the average size of a U.S. farm was 174 acres. Let's say that the standard deviation was 51 acres. Suppose we randomly survey 45 farmers from 1940. I need help with the question below: The middle 50% of the distribution for x̅, the bounds of which form the distance represented by the IQR, lies between what two values? please explain to me the steps I have to do to solve this problem, thank you
(I'm having a hard time solving for the data, can you please help? The first photo is the given values, and the second the equation for the solution.) Identify the following to calculate the test statistic and will input the given to the following formula: The sample mean (x̄) The population mean (μ) The sample standard deviation (s) Number of observations (n)