A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 55 milligrams. You want to test this claim. During your tests, youfind that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 53.9 milligrams. Assume the population is normally distributed and thepopulation standard deviation is 6.8 milligrams. At a = 0.08, can you reject the company's claim? Complete parts (a) through (e).(a) Identify Ho and Ha. Choose the correct answer below.O B. Ho: H= 53.9O A. Ho: us53.9Ha:u> 53.9Ha: H#53.9O C. Ho: H#55D. Ho: H = 55Ha: H= 55Ha: H#55O E. Ho: H5 55OF. Ho:H#53.9Ha: p> 55Ha: µ = 53.9(b) Find the critical value(s). Select the correct choice below and fill in the answer box within your choice.(Round to two decimal places as needed.)O A. The critical values are +O B. The critical value is

Answered: Image /qna-images/answer/5942cb71-cde6-4849-b23b-9e4039da4456.jpg

Answered: A company that makes cola drinks states…

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 mean IQ score of adults is 100, with a standard deviation of 15. Use the empirical rule to find the percentage of adults with scores between 70 and 130. (Assume the data set has a bell-shaped distribution.)
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A psychologist created a questionnaire to assess people's aggression. Assume that the questionnaire responses are regularly distributed with a standard deviation of 100. Assume that 15% of the scores are higher than 700. Determine the mean of the score distribution. Calculate your intermediate results to at least four decimal places. Round your answer to the nearest decimal point.
Someone claims that the systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 125. The population standard deviation is 18. A random sample of 45 adults having systolic blood pressure of 160. Find the test statistic. Z = (Round to one decimal)
It takes an average of 10.2 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 60 injured patients to immediately tell the truth about the injury and noticed that they averaged 10.1 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.62 minutes. What can be concluded at the the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and altemative hypotheses would be: Họ: Select an answer H1: ? Select an answer c. The test statistic (please show your answer to 3 decimal places.) d. The p-value = e. The p-value is (? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that .. (Please show your answer to 4 decimal places.) O The data suggest the population mean is not significantly less than 10.2 at a = 0.01, so there is…
The overall average on a process you are attempting to monitor is 50.0 units. The process population standard deviation is 1.84. Sample size is given to be 16.
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 68 miles per hour, with a standard deviation of 3 miles per hour. Estimate the percent of vehicles whose speeds are between 65 miles per hour and 71 miles per hour. (Assume the data set has a bell-shaped distribution.) Approximately nothing% of vehicles travel between 65 miles per hour and 71 miles per hour.
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Find the ML estimator of the mean and variance from i.i.d. measurements from a normal distribution.

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