Numerade

Questions asked

BEST MATCH

For a certain application, at room temperature, you must select a known copper alloy, but you have 4 choices: alloy of ASTM grain size 4, alloy of ASTM grain size 6, alloy of ASTM grain size 8 and alloy of ASTM grain size 10. If strength is important which one would you choose:

View Answer

BEST MATCH

A manufacturing company uses an acceptance scheme on items from a production line before they are shipped. The plan is twostaged one. Boxes of 25 items are readied fro shipment, and a sample of 3 items is tested fro defectives. if any defectives are found, the entire box is sent back for $ 100 \% $ screening. If no defectives are found, the box is shipped. What is the probability that a box containing 3 defectives will be shipped? Select the correct response: 0.6696 0.4936 0.779 0.52

View Answer

BEST MATCH

An industrial chemist is checking for the desired concentration of a certain chemical component in a batch of polymer blend. The target concentration is set at 8.2%. To verify whether the actual average concentration matches the target for the current production line using a significance level of $\alpha = 0.05$, 15 independently obtained samples are taken for analysis. Assume that the concentration of the chemical component in a sample is normally distributed with $\sigma = 0.5\%$ and that the sample mean is $\bar{x} = 8.0$. 1. Based on the information provided, perform a hypothesis test to determine if there is statistical evidence that the true average concentration of the chemical component is different from 8.2%. State the null and alternative hypotheses and calculate the P-value. Based on the P-value and the significance level, explain your conclusion. (10 points) 2. Assuming that the actual average concentration is $\mu = 8.1\%$, calculate the probability of committing a Type II error, denoted as $\beta(8.1)$. (10 points)

View Answer

BEST MATCH

convert insert algorithm into O(nlogn) Hint. Using binary search when do insert

View Answer

BEST MATCH

2. Circle the alkyne(s) that will not isomerize in the presence of NaNH$_2$?

View Answer

BEST MATCH

Given the following classes. Check whether statement A, B will be accepted by a standard C++ compiler. class Odd { protected: int id; private: string name; }; class Deranged: private Odd { public: void setName(string name); void setID(int id); }; void Deranged::setName(string name) { this->name = name; // statement A } void Deranged:: setID (int id) { this->id = id; // statement B } a. Statement B is accepted only. b. Both A and B are not accepted. c. Both A and B are accepted. d. Statement A is accepted only.

View Answer

BEST MATCH

Evolution that results from changes in the gene pool from one generation to the next is: Microevolution O Speciation Adaptive radiation Macroevolution

View Answer

BEST MATCH

Please answer all questions and parts. Thank you! Problem 1: Find the flux integral of F=ry-3, ry+1,5 through the parallelogram formed by the vertices A(0,0,1), B(1,1,1), C(6,1,4), D(5,0,4). Hint: Find the normal vector and the area of a parallelogram using cross products. This is Math 13 material. If done correctly, your integral should become ∮dA for some constant C. Problem 2: Say whether the following integrals are positive, negative, or zero. Explain why. You don't need to calculate these integrals. a) The circulation of the vector field around the ellipse x^2+y^2=1 oriented clockwise. b) The flux coming out of the closed surface z+y+z-1=1 of the vector field <-x,0,-> Problem 3: Show that we can compute the area of a region R in the xy plane bounded by a curve C by finding half of the line integral of the vector field F=-x around the curve C. Can you give an example of a vector field not equal to F that works instead? Hint: What should ∇ x F equal?

View Answer

BEST MATCH

2.4. Let $f(x_1, x_2)$ be a production function with two factors and let $w_1$ and $w_2$ be their respective prices. Show that the elasticity of the factor share ($w_2 x_2 / w_1 x_1$) with respect to ($x_1 / x_2$) is given by $1/\sigma - 1$.

View Answer

BEST MATCH

What is the mechanism by which ammonium sulfate leads to the precipitation of proteins? (4 points)

View Answer

nancy s.