Sm ate 100 g of dark chocolate and in another random sample of 15 adults each of them ate 100 g of milk chocolate. After one hour their tloodand the summary statistics are given below.Dark chocolate (DC)Milk chocolate (MC)Sample mean171.5Sample standard deviation6.8165.07.2e sufficient evidence that dark chocolate produces different mean level of total blood plasma antioxidant capacity from milk chocolate?re normal with equal variance.arkc (</ >/ *)(round at two decimal places)(do not round up).pothesis and concludethan the critical value, we (accept/reject)produce different mean level of total blood plasma antioxidant capacity than mild chocolate.tailed test. Question 6In a random sample of 12 adults each of them ate 100 g of dark chocolate and in another random sample of 15 adults each of them ate 100 g of mik choplasma antioxidant capacity was measured and the summary statistics are given below.Sample meanSample standard deviationDark chocolate (DC)Milk chocolate (MC)171.56.8165.07.2At 5% significance level do the data provide sufficient evidence that dark chocolate produces different mean level of total blood plasmà antioxidant cAssume that the population distributions are normal with equal variance.a. The alternative hypothesis is H1: Pparkc (</ >/ +)HMIKCb. The test statistic t=(round at two decimal places)c. The degrees of freedom (d.f.) =d. The critical value of the test =(do not round up).than the critical value, we (accept/reject)e. As the test statistic is (less/greater)produce different mean level of total blood plasma antioxidant capathat dark chocolate (does/does not)-tailed test.f. The above test is a (one/two)

Answered: Image /qna-images/answer/e562569b-b4e7-4122-bbc7-abc3c062a291.jpg

Answered: In a random sample of 12 adults each of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The average American consumes 82 liters of alcohol per year. Does the average college student consume a different amount of alcohol per year? A researcher surveyed 15 randomly selected college students and found that they averaged 73.1 liters of alcohol consumed per year with a standard deviation of 15 liters. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Но: Select an answer H1: Select an answer e c. The test statistic ? 0 = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is f. Based on this, we should Select an answer e the null hypothesis. g. Thus, the final conclusion is that ... The data suggest the population mean is not significantly different from 82 at a = 0.10, so there is statistically insignificant evidence to conclude that the population mean amount of alcohol consumed by…
Please help!!
In a test of the effectiveness of garlic for lowering cholesterol, 36 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 2.43. 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. Ho : μ=0 mg/dL B. Ho: µ= 0 mg/dL H1: µ#0 mg/dL H1: µ 0 mg/dL O D. Ho: µ= 0 mg/dL H1: µ >0 mg/dL H1:µ<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.)…
a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after t eatment. The changes in their levels of LDL cholesterol (in mg/dL) have a mean of 3.1 and a standard deviation of 17.8. Complete parts (a) and (b) below.
Avg canadian worker spends 29.88 minutes driving to work each day. Assume the distribution of driving time is normal with standard deviation of 4.47 minutes. What percentage of canadian workers spend fewer than 22 minutes a day driving to work?
The FDA regulates that fish that is consumed is allowed to contain 1.0 mg/kg of mercury. In New Hampshire, bass fish were collected in 51 different lakes to measure the amount of mercury in the fish. Do the data provide enough evidence to show that the fish in New Hampshire lakes has more mercury than the allowable amount? State the Type 1 and Type Il errors in this case. State the Type I error. O Concluding that the mean amount of mercury in bass fish in New Hampshire is 1.0 mg/kg when it is less than 1.0 mg/kg. O Concluding that the mean amount of mercury in bass fish in New Hampshire is less than 1.0 mg/kg when it is 1.0 mg/kg. O Concluding that the mean amount of mercury in bass fish in New Hampshire is 1.0 mg/kg when it is more than 1.0 mg/kg. O Concluding that the mean amount of mercury in bass fish in New Hampshire is more than 1.0 mg/kg when it is 1.0 mg/kg. State the Type Il error. O Concluding that the mean amount of mercury in bass fish in New Hampshire is more than 1.0…
Scientists experimenting with cancerous cells wish to control the number of T-cells in a petri dish, with a standard deviation of 500 cells. Determine the number of tests that the scientists will need to perform in order to ensure that population mean number of T-cells is accurate to within 100 cells, at the 1% significance level.
In a test of the effectiveness of garlic for lowering cholesterol, 36subjects 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 0.9and a standard deviation of 2.28. 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. a) What are the null and alternative hypotheses? b) Determine the test statistic. c) Determine the P-value. d) (reject/do not reject). There is (sufficient/not sufficient) evidence to conclude that the mean of the population of changes are (=, not, >, <) to 0.
The mean alkalinity level of water specimens collected from the Han River in Seoul, Korea, is 50 milligrams per liter. (Environmental Science & Engineering, September 1, 2000.) Consider a random sample of 100 water specimens collected from a tributary of the Han River. Suppose the mean and standard deviation of the alkalinity levels for the sample are Xbar= 67.8 mg/L and s = 14.4 mg/L. Is there sufficient evidence to indicate that the population mean alkalinity level of water in the tributary exceeds 50 mg/L? Use significance level 0.05 a. State the null and alternate hypothesis b. Calculate the test statistic c. Calculate the p-value d. Do you reject the null hypothesis or fail to reject the null hypothesis. e. Write your conclusion
A major car manufacturer wants to test a new engine to determine whether it meets air pollution standards. The mean emission levels of all engines must be not more than 60 parts per million (ppm) of carbon. 10 engines are manufactured for test and the sample mean and standard deviation are 61.1 ppm and 3.0 ppm respectively. Do these data provide sufficient evidence to conclude that this engine does not meet the pollution standards? Using 5% level of significance.
In a test of the effectiveness of garlic for lowering cholesterol, 36 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 1.54. 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.
An investigation of the relationship between traffic flow (measured in cars per day) and lead content (measured in micrograms per gram of dry weight) in the bark of trees near the highway yielded the following summary statistics: Sample Mean Sample Standard Deviation Lead Content (micrograms per gram dry weight) y¯=y¯= 680 sysy = 240 Traffic Flow (cars / day) x¯=x¯= 1750 sxsx = 800 The correlation between lead content and traffic flow was found to be r = 0.6 and a scatterplot showed the form to be linear. The least squares regression line for using X to predict Y was found to be y^=365+0.18xy^=365+0.18x. Which one of the following is a proper interpretation of the slope? Group of answer choices For each 1 car per day increase in traffic flow, we predict an corresponding increase of 0.18 in lead content of surrounding trees For each 0.6 car per day increase in traffic flow, we predict an corresponding increase of 365.18 in lead content of surrounding trees For each 1…

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS