Use the attached data set Weight Gain.xlsx to answer the following questions.An experimental study looked at the effect of a new medicine on premature newborns' weight gain. Manufacturers of the medicine said that it would lead to an average weight gain of over 3 pounds for premature newborns whoare given the medicine. A random sample of 29 newborns was selected and their change in weight after being administed the medicine for the prescribed period was recorded. The data provided lists the changes in weight of thenewborns in the sample. Assume that the population standard deviation is known to be 7.31 pounds.1. Construct a 90% confidence interval. Does your result support the manufacturers' claim? Round to 2 decimal places.2.Now, consider a 99% confidence interval. What do you expect to happen to your confidence interval as a result? Confirm this by constructing a 99% confidence interval. Round to 2 decimal places.For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).BIUSParagraph三 ==Arial14pxA vIxx? X2V...<>!!!<> 1 Changes in Weight (in pounds)11311*Hint, you will need to find the sample mean first.4.6.9.14-389.7102211-512-413131413159.164176.1811191420-32122232224-525-426132713289.294306.3132332.67

Name: Use the attached data set Weight Gain.xlsx to answer the following qu
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Description: Use the attached data set Weight Gain.xlsx to answer the following questions.An experimental study looked at the effect of a new medicine on premature newborns' weight gain. Manufacturers of the medicine said that it would lead to an average weight

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n experimental study looked at the effect of a new medicine on premature newborns' weight gain. Manufacturers of the medicine said that it would lead to an average weight gain of over 3 pounds for premature newborns who re given the medicine. A random sample of 29 newborns was selected and their change in weight after being administed the medicine for the prescribed period was recorded. The data provided lists the changes in weight of the ewborns in the sample. Assume that the population standard deviation is known to be 7.31 pounds. Construct a 90% confidence interval. Does your result support the manufacturers' claim? Round to 2 decimal places. Now, consider a 99% confidence interval. What do you expect to happen to your confidence interval as a result? Confirm this by constructing a 99% confidence interval. Round to 2 decimal places. or the toolbar, press ALT+F10 (PC) or ALT+EN+

n experimental study looked at the effect of a new medicine on premature newborns' weight gain. Manufacturers of the medicine said that it would lead to an average weight gain of over 3 pounds for premature newborns who re given the medicine. A random sample of 29 newborns was selected and their change in weight after being administed the medicine for the prescribed period was recorded. The data provided lists the changes in weight of the ewborns in the sample. Assume that the population standard deviation is known to be 7.31 pounds. Construct a 90% confidence interval. Does your result support the manufacturers' claim? Round to 2 decimal places. Now, consider a 99% confidence interval. What do you expect to happen to your confidence interval as a result? Confirm this by constructing a 99% confidence interval. Round to 2 decimal places. or the toolbar, press ALT+F10 (PC) or ALT+EN+

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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A new screening test for Lyme disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Five hundred people are screened at a clinic during the first year the new test is implemented. Assume the true prevalence of Lyme disease among clinic attendees is 10%. Calculate the predictive value of a positive test.
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Denny studied factors affecting cardiovascular reactivity to a postural change in a sample of healthy men and women. Change in systolic blood pressure (SBP) from supine to standing position was used as the measure of cardiac reactivity in a sample of 842 adults. Supine measurement of blood pressure was taken after participants had lain on an examination table for 15 minutes. Blood pressure was determined every 30 seconds using a Dinamap device for 2 minutes, and the measurements were averaged. Participants then stood up immediately, and additional measurements were made for another 2 minutes. Below is a table describing the characteristics of Denny’s sample: Which measures of dispersion, if any, are presented in this table (Ranges, SDs)? If age is normally distributed, approximately what percent of the sample would be younger than 50? If BMI is normally distributed, approximately what percent of the sample would have a BMI higher than 33.1?
Please show work in Excel.
A clinical study was conducted on a medicine and the data obtained as follows: calculate Sensitivity Diseased •True Positive: 1000 •True negative: 50 Non diseased •True positive: 100 •True negative: 800