How much do you predict their tensile strengths to differ

Reference no: EM131008679

1. Each month for several months, the average temper- ature in ^oC (x ) and the amount of steam in kg (y) consumed by a certain chemical plant were measured. The least-squares line computed from the resulting data is y = 111.74 + 0.51x .

a. Predict the amount of steam consumed in a month where the average temperature is 65 ^oC.

b. If two months differ in their average temperatures by 5 ^oC, by how much do you predict the amount of steam consumed to differ?

2. In a study of the relationship between the Brinell hardness (x) and tensile strength in ksi (y) of specimens of cold drawn copper, the least-squares line was y = -196.32 + 2.42x .

a. Predict the tensile strength of a specimen whose Brinell hardness is 102.7.

b. If two specimens differ in their Brinell hardness by 3, by how much do you predict their tensile strengths to differ?

Reference no: EM131008679

Questions Cloud

Creating the necessary scale measurement for collecting data : In your judgment, what level of scale design would be the most appropriate in creating the necessary scale measurement for collecting primary data on each construct

Determining the probabilities or percentages : For Exercises 21-28, use the 68-95-99.7 Rule to approximate the probabilities rather than using technology to find the values more precisely. Answers given for probabilities or percentages from Exercise 29 and on assume that a calculator or softwa..

How tall must a man be so that we would predict : Assume that the least-squares line for predicting forearm length (y) from height (x) is y = -0.2967 + 0.2738x . Both forearm length and height are measured in inches in this equation. Predict the forearm length of a man whose height is 70 in.

How much disease was detected overall in the assessed block : How much disease was detected overall in the assessed block - Was the amount of disease likely based on the weather?

How much do you predict their tensile strengths to differ : In a study of the relationship between the Brinell hardness (x) and tensile strength in ksi (y) of specimens of cold drawn copper, the least-squares line was y = -196.32 + 2.42x . Predict the tensile strength of a specimen whose Brinell hardness..

Find the interquartile range : Find the mean. Find the standard deviation. Find the median. Construct a dotplot.

Explore sampling issues in ecology : To quantify the vertical distribution and abundance of biota along a rocky intertidal shore (an environmental gradient)- LOCATION WAS FLINDERS Melbourne australia

Problem regarding the incubator business : The new business "incubator" was assigned the 200 numbers between 452-2500 and 452-2699, but these businesses don't subscribe to digital TV. What is the probability that the randomly selected number will be for an incubator business?

Introduction of the belgian euro coin : Shortly after the introduction of the Belgian euro coin, newspapers around the world published articles claiming the coin is biased. The stories were based on reports that someone had spun the coin 250 times and gotten 140 heads- that's 56% heads.

User Account

All Pages