A consumer organization was concerned about the differences between the advertised sizes of containers and the actual amount of product. In a preliminary study, six packages of three different brands of margarine that are supposed to contain 500 ml were measured. The differences from 500 ml are listed here. Brand 1 1 Brand 2 Brand 3 1 3 3 2 4 4 3 4 4 Do these data provide sufficient evidence to conclude that differences exist between the three brands? Use 5% level of significane. a) There is not enough evidence to conclude that differences exist between the three brands. b) There is enough evidence to conclude that differences exist between the three brands. O c) None of the answers are correct 2.

A consumer organization was concerned about the differences between the advertised sizes of containers and the actual amount of product. In a preliminary study, six packages of three different brands of margarine that are supposed to contain 500 ml were measured. The differences from 500 ml are listed here. Brand 1 1 Brand 2 Brand 3 1 3 3 2 4 4 3 4 4 Do these data provide sufficient evidence to conclude that differences exist between the three brands? Use 5% level of significane. a) There is not enough evidence to conclude that differences exist between the three brands. b) There is enough evidence to conclude that differences exist between the three brands. O c) None of the answers are correct 2.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter11: Data Analysis And Displays

Section: Chapter Questions

Problem 8CR

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A consumer organization was concerned about the differences between the advertised sizes of containers and the actual amount of product. In a preliminary study, six packages of three different brands of margarine that are supposed to contain 500 ml were measured. The differences from 500 ml are listed here. Brand 1 Brand 2 Brand 3 1 1 3 2 3 4 4 3 2 1 4 4 What is the test value? Use 5% level of significance. a) 0.60 ОБ) 1.69 c) 2.69 d) 0.21 e) None of the answers are correct 2.
A batch of ointment with an average net content of 5 g was evaluated for weight uniformity test. Following are the net weights in gm of 10 weighed samples: 4.8, 4.9, 4.4, 5.5, 5.6, 5.6, 4.6, 4.7, 4.6, 5.4. What would be your recommendation about acceptance or rejection of this batch and Why?
A newspaper infographic titled "Social Media Jeopardizing Your Job?" summarized data from a survey of 1,850 recruiters and human resource professionals. The infographic indicated that 54% of the people surveyed had reconsidered a job candidate based on his or her social media profile. Assume that the sample is representative of the population of recruiters and human resource professionals in the United States. USE SALT (a) Use the given information to estimate the proportion of recruiters and human resource professionals who have reconsidered a job candidate based on his or her social media profile using a 95% confidence interval. (Round your answers to three decimal places.) Give an interpretation of the interval in context. O There is a 95% chance that the true proportion of recruiters and human resource professionals who have reconsidered a job candidate based on his or her social media profile falls directly in the middle of this interval. O There is a 95% chance that the true…
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High cholesterol is one of the major risk factors for heart disease. A total cholesterol reading above 190 mg/dL is considered high.A physician is concerned that a patient may be at risk for high cholesterol. In order to accurately measure the patient's average cholesterol level, the physician instructs the patient to come into the physician's office once a week for 12 weeks for a blood lipid screening. The results of the 12 measurements are listed below. 189 186 199 197 190 186 185 200 200 200 185 190 Use the critical value method to test the hypothesis that the patient's cholesterol level is greater than 190 mg/dL, using a significance level of 10%. Assume that the distribution of all cholesterol measurements from this patient is approximately normally distributed. Determine the critical value(s) for this hypothesis test. Round the solution(s) to four decimal places. If more than one critical value exists, enter the solutions using a comma-separated list.Determine the test…
A newspaper infographic titled "Social Media Jeopardizing Your Job?" summarized data from a survey of 1,900 recruiters and human resource professionals. The infographic indicated that 52% of the people surveyed had reconsidered a job candidate based on his or her social media profile. Assume that the sample is representative of the population of recruiters and human resource professionals in the United States. In USE SALT (a) Use the given information to estimate the proportion of recruiters and human resource professionals who have reconsidered a job candidate based on his or her social media profile using a 95% confidence interval. (Use a table or SALT. Round your answers to three decimal places.) 0.028 0.017 Give an interpretation of the interval in context. We are 95% confident that the true proportion of recruiters and human resource professionals who have reconsidered a job candidate based on his or her social media profile falls within this interval. We are 95% confident that…
A quality-control apprentice is preparing a CUSUM chart. The values calculated for SL and SH are presented in the following table. Three of the values have been calculated incorrectly. Which are they? Sample SL SH 2 3 -1.3280 -1.4364 -2.0464 -1.6370 -0.8234 0.2767 -0.4528 0.1106 10 0.7836 11 0.2371 0.0097 12 0.7104 13 0.2775 14 0.5842 15 0.3750 16 0.4658 17 0.1866 18 0.3277 19 -0.2036 20 -0.7345
What is the scale of measurement that is most appropriate for each of the following variables? • percentage of 11th grade students with standardized scores above a median • college major • high school class rank
The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of Asian postmenopausal women who were vegans and another sample of such women who were omnivores. Diet Sample Size Sample Mean Sample SD Vegan 86 5.30 1.02 Omnivore 93 5.75 1.20 Calculate a 99% CI for the difference between population mean total cholesterol level for vegans and population mean total cholesterol level for omnivores. (Use ?Vegan − ?Omnivore. Round your answers to three decimal places.) , (mmol/l) Interpret the interval. We are 99% confident that the true average cholesterol level for vegans is greater than that of omnivores by an amount within the confidence interval.We are 99% confident that the true average cholesterol level for vegans is less than that of omnivores by an amount within the confidence interval. We are 99% confident that the true average cholesterol level for vegans is greater than that of omnivores by an amount outside…
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The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of Asian postmenopausal women who were vegans and another sample of such women who were omnivores. Diet Sample Size Sample Mean Sample SD Vegan 88 5.10 1.09 Omnivore 97 5.55 1.10 Calculate a 99% CI for the difference between population mean total cholesterol level for vegans and population mean total cholesterol level for omnivores. (Use uvegan- Homniyore Round your answers to three decimal places.) (mmol/I) Enter a number. Interpret the interval. O We are 99% confident that the true average cholesterol level for vegans is greater than that of omnivores by an amount within the confidence interval. O We cannot draw a conclusion from the given information. O We are 99% confident that the true average cholesterol level for vegans is greater than that of omnivores by an amount outside the confidence interval. We are 99% confident that the true average cholesterol level for vegans is less than that…