According to a dietary study. high sodium in take may be related to ucers. stomachcancer. and migraine headaches. The human requirement for salt is only 220milligrams per day. which is surpassed in most single servings of ready-to-eat cereals.If a random sample of 20 similar servings of a certain cereal has a mean sodiumcontent of 244 milligrams and a standard devlation of 24.5 miligrams, does thissuggest at 0.05 level of significance that the average sodlum content for a singleserving of such cereal is greater than 220 milligrams?The p-value of the test statistic in 6 decimal places and the critical value in twodecimal places is:example answer: 0.123456 and 1.23

Answered: Image /qna-images/answer/99e67db4-9ae1-4e04-abce-56378c755588.jpg

Answered: According to a dietary study. high…

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 advertising budgets of small stores in Los Angeles is normally distributed with a mean of $5,400 and a standard deviation of $2,100. What percentage of small stores in L.A. have an advertising budget less than $5,000 or greater than $6,000?
Suppose you organized a 10-kilometer race in which the times were normally distributed with a mean of 75 minutes and a standard deviation of 8 minutes. Complete parts a through c. b. What percentage of runners took longer than 103 minutes to finish?
A particular fruit’s weights are normally distributed, with a mean of 712 grams and a standard deviation of 28 grams. The heaviest 18% of fruits weigh more than how many grams?
A parent claims that children spend about 2 hours a day in front of computer screens. We think that the parent is underestimating the situation and does a survey of 25 children and finds a mean of 3.5 and sample standard deviation of 1.2 hours. Check the parents claim at the .05 level.
A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a standard deviation of 11. Students who made 59.99 or lower on the exam failed the course. What percent of students failed the course? a. 88.15% b. 11.85% c. 1.80% d. 98.20%
Suppose the annual employer 401K cost per participant is normally distributed with a mean of $770. If 73.89% of such costs are greater than $370, what is the standard deviation of the annual employer 401K cost per participant?
Suppose the durations of human pregnancies follow a mound-shaped distribution with a mean of 266 days and a standard deviation of 18 days. a. Approximately what percentage of human pregnancies last between 248 and 284 days?
Entrance exam scores at Cititon University are normally distributed with a mean of 310 and a standard deviation of 39. If scholarships are awarded to the top 15% of scores, what is the minimum score needed to guarantee a scholarship?
A particular fruit's weights are normally distributed, with a mean of 620 grams and a standard deviation of 12 grams.The heaviest 15% of fruits weigh more than how many grams?
In a population, it was found that the diastolic blood pressure is normally distributed with a mean 81.5 and standard deviation of 5.5 mm Hg. What proportion of the population have diastolic blood pressures above 80 mm Hg? A. 10.64% B. 39.36% C. 61.79% D. 60.64%
Statewide, the population as a whole watches 6.2 hours of TV per day. A random sample of 1017 senior citizens in the state reports watching an average of 5.9 hours per day, with a standard deviation of 0.7. is the difference significant
In the United States, egg sizes are set by the Department of Agriculture. A "large" egg, for example, weighs between 57 and 64grams. Suppose the weights of eggs produced by hens owned by a particular farmer are approximately normally distributed with a mean of 55.8 grams and a standard deviation of 7.5 grams. What proportion of these eggs weigh less than 50grams? What percent of these eggs would be classified as large?

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