8. a) The mean of 6 different plots of acidic soil samples is 3.2. An extraplot with pH value 3.9 is included in the sample. What is the new mean?b) Five soil samples have a mean of 12 dS/m for soil electrical conductivity(EC). When a soil sample was removed, the mean is 11 dS/m.What is the value of the soil EC been removed?9. Loss of calcium is a serious problem for older women. At the beginningof a study on the influence ofexercise on the rate of loss, the amounts of bone mineral content in theradius bone of the dominant handof 11 elderly women were:0.88, 1.06, 0.90, 1.06, 0.79, 0.80, 0.85, 0.91, 0.94, 1.00, 0.72Calculate:(a) The mean.(b) The median.(c) The mode.(d) A researcher says: "The mode seems to be the best average to representthe data in this survey." Give ONE reason to support this statement.

"Since you have posted multiple questions we will provide solutions only to the first question as…

Answered: 8. a) The mean of 6 different plots 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

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age 2 of 6 b. should not be rejected. c. should be revised. 70°F Sunny d. should not be tested. ANSWER: b MSC 600 Quantitative Methods 7. Part of an ANOVA table is shown below. Source of Variation Between Treatments Within Treatments (Error) TOTAL 480 18 The mean square due to treatments (MSTR) is a. 20. b. 60. c. 18 d. 15. ANSWER: b 8. Part of an ANOVA table is shown below. Source of Sum of Variation "Squares Between Treatments 180 Within Treatments (Error) TOTAL 1105 words Sum of Degrees of SquaresFreedom 180 3 480 The mean square due to error (MSE) is a. 60. b. 15. c. 18. d. 20 ANSWER: 4 W Text Predictions: On Degrees of Freedom 3 18 Mean Square Mean Square Focus 32 F F 00 O Search LAH COLLEGE OF BUSINESS J 7 10 Re SAMSU
Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Question: If a participant has the same corneal thickness in their normal eye as the eye with Glaucoma, what would be the value for difference: measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma.
Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Question:If the t statistic falls below the effect size in which we reject the null, but the p value is greater than 0.05. Do i reject the null? As my scenario had no population mean because the differences were recorded, do i set a test value of 10 or keep it at 0?
How do you calculate the upper quartile when you have missing data in the column age in the dataset df? a. quantile(df$age, .75) b. quartile(df$age, .75, na.rm=T) c. quartile(df$age, .75) d. quantile(df$age, .75, na.rm=T)
The mean score for first exam in your first organic chemistry class (section A) was 60, with a standard deviation of 5. Your score on the exam was 70. A. How many standard deviations above the mean is your score?
Suppose that you wish to estimate the difference between mean pH measurements of rainfalls in two different locations, one in relatively unpolluted area and the other in an area subject to heavy air pollution. You want to be 95% confident that the margin of error for the difference between mean pH of rainfalls in relatively unpolluted area and mean pH of rainfalls in an area subject to heavy air pollution will not exceed 0.1 pH. How many rainfalls (pH measurements) must be included in each sample? Assume that the variance of pH measurements in a relatively unpolluted area is equal to 2 = 20, and the variance of pH measurements in an area subject to heavy pollution is equal to 2 = 0.25, and samples will be of equal size (n = n₂ = n). 2 It is supposed that values of pH in rainfalls are normally distributed in polluted and unpolluted areas. The number of rainfalls (pH measurements) that must be included in each sample is
Glaucoma is a leading cause of blindness in the United States, N. Ehlers measured the difference in corneal thickness (in microns) between the two eyes of eight patients. Each patient had one eye that had glaucoma and one eye that was normal. The difference was measured as the corneal thickness of normal eye – corneal thickness of eye with Glaucoma. Corneal thickness is important because it can mask an accurate reading of eye pressure. Question: Write a report summarizing your findings When writing the report consider that medical staff estimate that a difference of 4.5 microns or more could impact on their ability to interpret eye pressure correctly.
Assume the cholesterol levels of an adult can be described by a Normal model with a mean of 183 mg/dL and a standard deviation of 27. Complete parts a through e. b) What percent of adults do you expect to have cholesterol levels over 190 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 3 c) What percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 4 d) Estimate the interquartile range of cholesterol levels. IQR=enter your response here mg/dL (Round to the nearest integer as needed.) Part 5 e) Above what value are the highest 15% of adults' cholesterol levels? enter your response here mg/dL (Round to the nearest integer as needed.)
Please solve only only the last question.
The mean performance score of a large group of fifth-grade students on a math achievement test is 76. The scores are known to be normally distributed. What percentage of the students had scores more than 2.1 standard deviations above the mean? Click here for page 1 of the Areas under the Normal Curve Table Click here for page 2 of the Areas under the Normal Curve Table The percentage of the students that had scores more than 2.1 standard deviations above the mean is%. (Round to two decimal places as needed.)
A researcher wants to test the association between 4 stress levels and 8 choices of favorite color in mature adults. The Chi-square value coputed was 30.72. At the 0.5 level what should the researcher conclue. Show work.

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