CHAPTER TESTSolve the following problems completely.An article in the Journal of Environmental Engineering (1989, Vol. 115(3), reported theresults of a study on the occurrence of sodium and chloride in surface streams in centralRhode Island. The following data are chloride concentration y (in milligrams per liter) androadway area in the watershed x (in percentage).yyyX0.194.40.156.60.579.70.7010.60.6710.80.6310.90.4711.80.7012.10.6014.30.7814.70.8115.00.7817.30.6919.21.3023.11.0527.41.0627.71.7431.81.6239.5 MATH 403- ENGINEERING DATA ANALYSIS6. Find a 99% confidence interval of Mean chloride concentration when roadway areax = 1.0%7. Find a 99% prediction interval on chloride concentration when roadway area x =1.0%.8. Plot the residuals versus ŷ and versus x. Interpret these plots.9. Prepare a normal probability plot of the residuals. Does the normality assumptionappear to be satisfied?10. Determine the correlation coefficient and the coefficient of determination.

Given information: x y 0.19 4.4 0.7 10.6 0.47 11.8 0.78 14.7 0.69 19.2 1.06 27.7…

Answered: 6. Find a 99% confidence interval 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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The heights of people in a certain population are normally distributed with a mean of 63 inches and a standard deviation of 4.3 inches. Suppose that a normal model applies.The model that correctly shows the 68-95-99.7 rule (empirical rule) for tree diameter is model: C A B About 68% of heights fall in the range described by option between 54.4 and 71.6. above 67.3. between 50.1 and 75.9. between 58.7 and 67.3. below 58.7. What percent of people in this population have heights below 54.4?
3. Consider a standard normal distribution. a. If z is a standard normal variable, then P(-0.73
The standard deviation of pulse rates of adult males is more than 11 beats per minute. This is a claim about a population proportion so a normal distribution is assumed. The claim undergoes a hypothesis test using a significance level of α = 0.05. The P-value based on sample data is calculated to be 0.345.4. Sketch a normal distribution curve and highlight the region of significance (also called critical region or rejection region).5. On your graph, next highlight the P-value. (The P-value means that there is a 34.5% chance that your results could be random or happen by chance).6. State a conclusion about the null hypothesis. (Reject H0 or fail to reject H0.)7. Without using technical terms or symbols, state a final conclusion that addresses the original claim.
Test the claim below about the mean of the differences for a population of paired data at the level of significance a. Assume the samples are random and dependent, and the populations are normally distributed. Claim: 0 В. Но На > 0 Ha: Ha s0 O C. Ho: Ha = 0 Ha: Hd #0 D. Ho: Ha <0 Ha: Hd 20 O E. Ho: Hd + 0 Ha: Hd F. Ho: Hd 20 Ha: Hd = 0 <0 The test statistic is t= (Round to two decimal places as needed.)
A population of values has a normal distribution with u = 36 and o = 31.3. You intend to draw a random sample of size n = 12. Please answer the following questions, and show your answers to 1 decimal place. Find the value separating the bottom 11% values from the top 89% values. Find the sample mean separating the bottom 11% sample means from the top 89% sample means.
I need the p value, please.
Please help thank you
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.)
Follow the instructions in the given image and write all formulas to do the steps in the Excel.. Please only do the D part
I need some help with this homework question

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