In a test of the eflectiveness of garic for lowering cholesterol, 47 mubjecta were treated with garic in a processed tablet form. Cholesterol levels were measured before and after the treatment The changes in their kevels of LDL cholesterol (inmgdi.) have a mean of 3.4 nd a standard deviation of 16.5. Complete parts (a) and () below.a. What in the best poit estmate of the populaton mean net change in LDL cholesterol ater the garlic beatment?The best point estimate 34 mg(Type an integer ora decimal)b. Construct a 0O% confidence interval estimate of the mean net change in LDL cholesterol aher the garic treatment. What doen he conldence eterval suggest about the effectiveress of garic in reduong LDL cholestaroWhat is the conidence interval estimate of the population mean(Round to two deonal places as needed)

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Answered: In a test of the eflectiveness of garic…

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 blood platelet counts of a group of women have a bell-shaped distribution with a mean of 260.2 and a standard deviation of 60.5. (All units are 1000 cells/uL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 78.7 and 441.7? b. What is the approximate percentage of women with platelet counts between 199.7 and 320.7? a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 78.7 and 441.7. (Type an integer or a decimal. Do not round.) b. Approximately % of women in this group have platelet counts between 199.7 and 320.7. (Type an integer or a decimal. Do not round.)
The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 245.6 and a standard deviation of 64.4. (All units are 1000 cells/uL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 52.4 and 438.8? b. What is the approximate percentage of women with platelet counts between 181.2 and 310.0? a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 52.4 and 438.8. (Type an integer or a decimal. Do not round.) b. Approximately % of women in this group have platelet counts between 181.2 and 310.0. (Type an integer or a decimal. Do not round.)
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A set of final examination grades in an introductory statistics course was found to be normally distributed with a mean of 73 and a standard deviation of 8. Calculate: a.the percentage of students scored between 75 and 90 ( using Rstudio) b.the test score higher than what grade if only 5% of the students taking the test (manually and using R studio)
A previous study found that the students' scores in a national examination in 2020 are normally distributed with mean 74 and standard deviation 3.5. a. What percentage of students got a score of at least 80? b. Given the total number of examinees is 2500, how many got a score of at least 80?
The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 260.4 and a standard deviation of 60.2. (All units are 1000 cells/uL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 79.8 and 441.0? b. What is the approximate percentage of women with platelet counts between 140.0 and 380.8? ..I. a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 79.8 and 441.0. (Type an integer or a decimal. Do not round.)
The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 255.1 and a standard deviation of 62.2. (All units are 1000 cells/uL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 68.5 and 441.7? b. What is the approximate percentage of women with platelet counts between 192.9 and 317.3? a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 68.5 and 441.7. (Type an integer or a decimal. Do not round.)

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