Answered: wat distribution tal W. Rage 1 of the…

Name: In a test of the effectiveness of garlic for lowering cholesterol, 43
Uploaded: 2024-03-20T07:06:16.000Z
Channel: Bartleby
Description: In a test of the effectiveness of garlic for lowering cholesterol, 43 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (before - after) in their levels of LDL

Math

Statistics

wat distribution tal W. Rage 1 of the sta w Rage 2 of the sta fidence interval estim

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 4GP

See similar textbooks

Related questions

Q: Monthly Salaries of 60 Employees in OAO Garments Use the given table to answer item numbers 1 to 10.…

A: 1) Salary (in Pesos) x Number of employees f Less than Cumulative frequency 29000-31999 2…

Q: 10. 100 childern took three examinations, 40 passed the first, 39 passed the second and 48 passed…

Q: Fre quency Data was collected for 40 randomly selected trees growing in the median strip of a busy…

A: The horizontal axis of the histogram denotes the height.

Q: A normal quantile graph is another name for a histogram. O True O False

A: A histogram is graphical representation that organises a group of data points into user specified…

Q: The following are ages of 18 of the signers of the Declaration of Independence. 44, 49, 40, 50, 42,…

A: Percentiles are 99 points that divide the data into 100 equal parts.

Q: Which of the following statements is true about statistics? a A statistic calculated from a…

A: An estimator is a sample statistic used to estimate a population parameter.

Q: Q7. The Table shows the distribution of the number of students of different age groups, who are…

Q: In frequency distributions, classes are mutually exclusive if each individual, object, or…

A: Here we have to identify whether the given statement is True or False

Q: The manager of a band recorded the amount of time each customer spent waiting in line during peak…

Q: etermine the number of scores between 19.5 and 51.5.

A: The data is given by Class Frequency 20-27 8 28-35 9 36-43 13 44-51 2 52-59 6

Q: Speed Dating Some of the nonparametric methods in this chapter use ranks of data. Find the ranks…

A: The data shows that the attractiveness ratings of males by females who participated in a speed…

Q: 01. A scatter diagram is a (a) two-dimensional graph of a straight line (b) two-dimensional graph…

A: We have given the following statement about. The correlation coefficient.

Q: A man surveyed a sample of 36 high school students and asked, "How many days in the past week have…

A: A data can be raw or grouped, with some pro and cons associated with both of them. The raw data has…

Q: NetT x O Grap x myC x Stem xA Orde x Quiz: X My S n/courses/31088/quizzes/92004/take ĐẠI CHIẾN…

A: We have given a histogram.We have to first note frequency of each bar,3,8,6,4,2,1,1.

Q: nts) the table below shows the number of books the Jefferson Middle school students read each month…

A: Given information: Months=September, October, November, December, January, February, March, April,…

Q: I need to make a frequency distributions for some pretest and posttest scores on a 20 question test.…

A: Frequency distribution for pretest:Step-by-step procedure to create frequency distribution using…

Q: Which of these statements is not a condition for an exposure to quality as a risk factor?…

A: The statement that is not a condition for an exposure to quality as a risk factor is:The observed…

Q: The ________ statistic tests whether the means of more than two groups are equal A.) Chi-Square B.)…

A: The ________ statistic tests whether the means of more than two groups are equal A.)…

Q: (g) Compute the 95% confidence intervals for the mean. Suppose we have the same scenario as the…

A: g) Given Information: Sample size n=20 Sample mean x¯=25 Hypothesized value of population mean is 23…

Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

Topic Video

Question

In a test of the effectiveness of garlic for lowering cholesterol, 43 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (before - after) in their levels of LDL cholesterol (in mg/dL) have a mean of 4.2
and a standard deviation of 17.4. Construct a 90% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol?
Click here to view at distribution table.
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table.
What is the confidence interval estimate of the population mean u?
Omg/dL < u <Omg/dL
(Round to two decimal places as needed.)

Expert Solution

Step 1

According to the sum, in a test of the effectiveness of garlic for lowering cholesterol, 43 objects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their level of LDL have a mean of 4.2 and a standard deviation of 17.4. We need to construct a 90 % confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment.

Confidence interval= $X \pm Z_{\frac{α}{2}} \frac{σ}{\sqrt{n}}$

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Centre, Spread, and Shape of a Distribution$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

In a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.1 and a standard deviation of 1.93. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? O A. Ho: H=0 mg/dL O B. Ho: H=0 mg/dL H1: µ#0 mg/dL H1:H>0 mg/dL OC. Ho: H>0 mg/dL H1:H<0 mg/dL O D. Ho: H=0 mg/dL H1:H<0 mg/dL Determine the test statistic, O (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal…
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.8 and a standard deviation of 15.9. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.2 and a standard deviation of 17.2. Use a 0.05 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? Ο Α. Hρ: μ=0 mg/dL O B. Ho: µ=0 mg/dL H;: u#0 mg/dL H,: µ>0 mg/dL O C . H: μ=0 mg/dL O D. Ho: µ>0 mg/dL H;: µ<0 mg/dL H,:µ<0 mg/dL Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value, (Round to three decimal…
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes(before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.3 and a standard deviation of 21.5 .Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. a.Determine the test statistic. (Round to two decimal places as needed.) b. Determine the P-value. (Round to three decimal places as needed.)
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.9 and a standard deviation of 21.5. Use a 0.10 significanc level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the gar treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.
In a test of the effectiveness of garlic for lowering cholesterol, 41 senior citizens were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol (in mg/dL) have an average (mean) of 3.8. Identify the sample, the population, the sample statistic, and the population parameter in this study.
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects Were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.3 and a standard deviation of 20.9. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? O A. H, p> 0 mg/dL H p 0 mg/dL O C. H, H= 0 mg/dL H1 p 0 mg/dL O D. H, p=0 mg/dL H, p<0 mg/dL Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final…
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.9 and a standard deviation of 2.39. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Question Help ▼ What are the null and alternative hypotheses? O A. Ho H= 0 mg/dL O B. Ho: u>0 mg/dL H:µ0 mg/dL Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the…
In a test of the effectiveness of garlic for loweringcholesterol, 49 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.6 and a standard deviation of 19.6. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. => Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. (fail to reject/reject) H0. There is (sufficient/not sufficient) evidence…
In a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.8 and a standard deviation of 2.16. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? Ο Α. H: μ = 0 mg/dL H: µ #0 mg/dL B. Ho: μ=0 mg/dL H1:µ > 0 mg/dL C. Ho: µ>0 mg/dL H1: µ<0 mg/dL D. Ho: μ=0 mg/dL H1:µ<0 mg/dL Determine the test statistic. (Round to two decimal places as needed.)
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.9 and a standard deviation of 20.8. Use a 0.05 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? O B. H,: H=0 mg/dL Ο Α. Η μ=0 mgldL H1: µ0 mg/dL O D. H,: µ> 0 mg/dL H: µ<0 mg/dL Determine the test statistic. (Round to two decimal places as needed.)
In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.8 and a standard deviation of 21.4. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? A. H0: μ=0mg/dL H1: μ≠0mg/dL B. H0: μ>0mg/dL H1: μ<0mg/dL C. H0: μ=0mg/dL H1: μ<0mg/dL D. H0: μ=0mg/dL H1: μ>0mg/dL Determine the test statistic. Determine the…