Computer and plot residuals from the linear relationships

Assignment Help Basic Statistics
Reference no: EM13639858

Data is the effect of reaction temp on the mole weight of resulting poly polyos.

x(pot temp) y(avg. mole weight)

165 808
176 940
188 1183
205 1545
220 2012
235 2362
250 2742
260 2935

Use a statistical package to help complete the following:

a) What fraction of the observed raw variation in y is accounted for by a linear equation in X?

b) Fit a linear relationship y=Bo+B1x to these data via least squares. About what change in avg. mole weight seems to accompany a 1 degree C increase in pot temp(at least over the experimental range of temps)?

c) Computer and plot Residuals from the linear relationships fit in b) Discuss what they suggest about the appropriateness of that fitted equation. (Plot residuals versus X, residuals versus Y, and make a normal plot of them).

D) These data came from a test where the investigator managed the value of X. There is a fairly glaring weakness in the experimenters data collection efforts, what is it?

E) Based on your analysis of these data, what avg. Mole weight would you predict for an additional reaction run at 188 degrees?Why or wouldnt you be willing to make a similar prediction of avg mole weight if the reaction is run at 70 degrees?

Reference no: EM13639858

Questions Cloud

A60 g sample of cuh2o4so4xh2o molar mass 24968 gmol is : a 6.0 g sample of cuh2o4so4xh2o molar mass 249.68 gmol is dissolved in deionized water. if an excess of ammonia is
A researcher conducts an experiment on the iq of one : a researcher conducts an experiment on the iq of one hundred randomly selected only children and finds that their
The ph difference across the membrane of a glass electrode : the ph difference across the membrane of a glass electrode is 6.45. how much voltage is generated by the ph gradient
A guard works betwwen 5 pm and 12 midnight he sleeps an : a guard works betwwen 5 p.m. and 12 midnight he sleeps an average of 1 hour before 9 p.m. and 1.5 hours betwween 9 and
Computer and plot residuals from the linear relationships : data is the effect of reaction temp on the mole weight of resulting poly polyos.xpot temp yavg. mole weight165
Determine the rate of heat transfer from the cold space of : a refrigerator operates with a coefficient of performance of 4.2 and requires an electrical input of 700 w. determine
How long does it take from the moment when the motorcycle : a motorcycle is following a car that is traveling at constant speed on a straight highway. initially the car and the
Benzoic acid is a weak acid that has antimicrobial : benzoic acid is a weak acid that has antimicrobial properties. its sodium salt sodium benzoate is a preservative found
The fan discharge pressure is 148 psia determine a the : a 200-ft3min-flow of air at 14.7 psia and 60 f enters a fan with negligible inlet velocity. the fan discharge duel has

Reviews

Write a Review

Basic Statistics Questions & Answers

  The number of traffic accidents in a city during one hour

the number of traffic accidents in a city during one hour follows a poisson distribution with mean 3 accidents per

  The critical chi-square value for 15 degress of freedom

the critical chi-square value for 15 degress of freedom when a0.05 and the test is right-tailed is 24.996a trueb

  Everlast automobile tires-normal distribution with mean

Research shows that the life time of Everlast automobile tires is normally distributed with a mean value of 70,000 miles and a standard deviation of 7,000 miles. What is the probability of having a tire that lasts more than 80,000 miles?

  Normal distribution with standard deviation

(a) Consider a normal distribution with mean μ = 88. If 2% of the values lie below x = 50, find the standard deviation σ. (b) Consider a normal distribution with standard deviation σ = 15.6. If 10% of the values lie above x = 17.2, find the mean μ.

  Which form of formula to use to find confidence intervals

Confidence intervals for the population mean number of that color of M&Ms in a pack. You may assume that the M&M are approximately normally distributed. Which form of the formula did you use and why?

  Computing standard deviation for dissolved organic carbon

Following data represent concentration of dissolved organic carbon (mg/L) collected from 20 samples of organic soil. Sample standard deviation is?

  Problem related to down syndrome

Suppose that 1 out of 500 infant's are born with Down's Syndrome.

  What conclusions can be drawn from the f-ration and the

q1. in a study of the effects of stress on illness a researcher tallied the number of colds people contracted during a

  To find the sample size needed for a hypothesis test if ho

to find the sample size needed for a hypothesis test if ho mu10 ha mult10 sigma is unknown alpha 0.01 beta 0.05 and e

  Effect of outlier or extreme value confidence interval

Recalculate the confidence interval. Using the results, describe the effect of an outlier or extreme value on the confidence interval.

  Decision making and state of nature

Allen Abbott has a wide-curving, uphill driveway leading to his garage. When ther is a heavy snow, Allen hires a local carpenter, who shovels snow on the side in teh winter, to shovel his driveway.

  Sketch sampling distribution and put in region of rejection

Assume H- to be true. What is the probability that this decision strategy will result in a type I error. Sketch the sampling distribution and put in the region of rejection?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd