Doctors developed an intensive intervention program for obese patients with heart disease. Subjects with aBMI of 30 kg/m² or more, with heart disease were assigned to a three-month lifestyle change of diet andexercise. Patients' Left Ventricle Ejection Fraction (LVEF) are measured before and after intervention, Anormal heart's ejection fraction may be between 50 and 70 percent, higher numbers indicate a healthierheart. Assume LVEF's are normally distributed.BeforeAfter45565260536342594757566745556267545747574150536353584961536135563851Find the 90% confidence interval for the mean of the differences. Use technology to find the critical valueand round answers to at least 4 decimal places.Did the intensive intervention program significantly increase the LVEF measurements? ?Submit QuestionMacBook Air**88810FSF7F2F3F4@#$&23467WETYDFGHK* CO

Compute the difference in each pair of observations by subtracting the observation in the "Before"…

Answered: Doctors developed an intensive…

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 City Council proposed to utilize government-owned land with an area of 9,600 square meters. One-third of the area will be used to plant mango trees while the rest of the land is where an emergency field hospital shall be built. As the city engineer, you were tasked to determine the following: the rate at which the total average number of COVID cases is increasing at x=10 tents and dxdt=1 tent per day, given that if 25 tents are built, the average number of COVID cases per tent will be 6 cases while the average number of cases will increase by 2 per tent for each additional tent in the same area due to overcrowding. Please Include : Illustration and Representation of Variables: Detailed Solution (do not use piecewise): Conclusion:
The City Council proposed to utilize government-owned land with an area of 9,600 square meters. One-third of the area will be used to plant mango trees while the rest of the land is where an emergency field hospital shall be built. As the city engineer, you were tasked to determine the following: the rate at which the total average number of COVID cases is increasing at x=10 tents and dxdt=1 tent per day, given that if 25 tents are built, the average number of COVID cases per tent will be 6 cases while the average number of cases will increase by 2 per tent for each additional tent in the same area due to overcrowding. Answer the drawing/Illustration of the Representation of Variables only thank you:
The City Council proposed to utilize government-owned land with an area of 21,600 square meters. One-third of the area will be used to plant mango trees while the rest of the land is where an emergency field hospital shall be built. As the city engineer, you were tasked to determine the following: The rate at which the total average number of COVID cases is increasing at x=10 tents and dxdt=1 tent per day, given that if 30 tents are built, the average number of COVID cases per tent will be 7 cases while the average number of cases will increase by 2 per tent for each additional tent in the same area due to overcrowding. Need: Illustration and Representation of Variables Detailed Solution Conclusion
The average value of the residuals is
It is important that face masks used by firefighters be able to withstand high temperatures because firefighters commonly work in temperatures of 200–500°F. In a test of one type of mask, 11 of 55 masks had lenses pop out at 250°(a)Construct a 90% CI for the true proportion of masks of this type whose lenses would pop out at 250°(b)Based on this, what would be your recommendations to the manufacturer regarding this specific face mask?
A survey of 90 recently delivered women on the rolls of a county welfare department revealed that 27 had a history of intrapartum or postpartum infection. What is the critical value of z if we need to conclude that the population proportion with a history of intrapartum or postpartum infection is less than 0.25.
A researcher hypothesizes that electrical stimulation of the lateral habenula will result in a decrease in food intake (in this case, chocolate chips) in rats. Rats undergo stereotaxic surgery and an electrode is implanted in the right lateral habenula. Following a ten day recovery period, rats (kept at 80 percent body weight) are tested for the number of chocolate chips consumed during a 10 minute period of time both with and without electrical stimulation. The testing conditions are counter balanced. Compute the appropriate t-test for the data provided below. Stimulation No Stimulation 12 8 7 7 3 4 11 14 8 6 5 7 14 12 7 5 9 5 10 8 a) What would be the null hypothesis and alternative hypothesis in this study? b) What is your tcrit? c) Is there a significant difference between the two groups? d) Interpret your answer. e) Write out your t-value in APA format. *ANSWER ALL PARTS OF THE QUESTION*
Given the accuracy of a patient's blood test to diagnose gestational diabetes and the prevalence gestational diabetes in our population. We are told that the blood test for this disease is 96 percent reliable, gestational diabetes affects 5% percent of the population in our patient’s age group, and that our test has a false positive rate of 2 percent. Compute the following quantities based on this information: If 100,000 people take the blood test, how many people that test positive will actually have gestational diabetes? What is the probability of having the disease given that you test positive? If 100,000 people take the blood test, how many people that test negative despite actually having gestational diabetes? What is the probability of having the disease given that you tested negative?
In a clinical trial of ciprofloxacin (CIPRO), pediatric patients were initiated on 6 to 10 mg/kg intravenously every 8 hours and converted to oral therapy, 10 to 20 mg/kg, every 12 hours Calculate the ranges of the total daily amounts of ciprofloxacin that would have been administered intrave nously and orally to a 40-lb child
Nutritionists claim that the mean mass of vitamin C per tablet is higher than 291 milligrams. Identify the alternative hypothesis Ha
A group of 10-year-old boys were first ascertained in a camp for diabetic boys. They had their weight measured at baseline and again when they returned to camp 1 year later. Each time, a serum sample was obtained from which a determination of hemoglobin A1c (HgbA1c) was made. HgbA1c (also called glycosylated hemoglobin) is routinely used to monitor compliance with taking insulin injections. Usually, the poorer the compliance, the higher the HgbA1c level will be. The hypothesis is that the level HgbA1c is related to weight. The data in Table 11.28 were obtained. 11.92 What test can be performed to assess the relationship between weight and HgbA1c at the initial visit? 11.93 Please perform the test in Problem 11.92, and report a two-tailed p-value. 11.94 Do the results in Problem 11.93 imply a relationship between change in HgbA1c and change in weight for an individual boy? Why or why not?
A group of 10-year-old boys were first ascertained in a camp for diabetic boys. They had their weight measured at baseline and again when they returned to camp 1 year later. Each time, a serum sample was obtained from which a determination of hemoglobin A1c (HgbA1c) was made. HgbA1c (also called glycosylated hemoglobin) is routinely used to monitor compliance with taking insulin injections. Usually, the poorer the compliance, the higher the HgbA1c level will be. The hypothesis is that the level HgbA1c is related to weight. The data in Table 11.28 were obtained. 11.95 Compute a rank correlation between change in weight and change in HgbA1c, each over 1 year. Use this measure to directly test the hypothesis that change in weight over 1 year is related to change in HgbA1c. Report a two-tailed p-value, and provide a 95% confidence interval for the underlying rank correlation.

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