2. A professor is interested in finding out whether there is urban dwellers and rural dwellers differed in their helpfulness to strangers. The following data show the number of respondents who admitted or did not admit the strangers into their homes: Admitted strangers into their home Did not admit strangers into their home Urban dwellers 50 100 150 Rural dwellers 60 40 100 110 140 1. Alternative hypothesis: 2. Null hypothesis: 3. Chi-square obtained:

Q: S(3x+1) (3x²+2x+1)³dx

A: I=∫(3x+1)(3x2+2x+1)3dxSubstitute 3x2+2x+1=u

Q: can this be solved with a Z table please?

A: Yes, the questions can be solved using a Z table, please find the work below with the attached Z…

Q: 2/5x+4=1/4x

A: Given 25x+4=14x ⇒2(4x)=5x+4⇒8x=5x+4⇒8x-5x=4⇒3x=4⇒x=43

Q: 5x 1 х2-1 х-1 х+1

A: The solution is given below-

Q: i would like to know how to calculate this without a calculator or big numbers

A:

Q: For the following data, test the hypothesis that a relationship exists between X and Y. = .30, = 61.

A: 1. The correlation is 0.30, sample size is 61. Let ρ population correlation between X and Y. Null…

Q: S(x*-3x3 +- -2)dx = x(8x*-30x3+5x-80) + C 1 %3D 40

A: Consider the right hand side of the given equation. The integration formula is  ∫xn=xn+1n+1+c

Q: Simplify 4-1(X2Y3)2/ X-2y5

A: We have to simplify the expression: 4-1X2Y32X-2Y5 We know the laws of exponents,…

Q: Solve for x. 3(x+8)=-3(6x-4)+3x

A:

Q: 1/3(12x-6)=4x-9

A: the given expression is 1312x-6=4x-9.

Q: 2/5x-1=3/10x+7

A:

Q: Evaluate J - 11x + 10 (2x - 5)(x + 1) -dx + с

A:

Q: I asked above if you can please show the calculation using the graphing calculator, not Excel. Can…

A: It is given that maximal error (E) is 0.001 and the confidence level is 99%.

Q: S(2 + vx)³ Vīdx

A:

Q: Find the solution for 3/4 - (-6/12)

A:

Q: Solve 3x + 2y > 6 graphically.

A: Shaded area below is the graphical solution.

Q: State FIVE (5) ways in which technology can be used to enhance the learning of Mathematical concepts…

A: Please check the next step for details

Q: 1/3p + 7 = 25

A:

Q: ax +-b dx ax² +bx +d

A:

Q: -2

A:

Q: Hi I cannot have the using excel at all. Please redo without excel and all the work shown. Thanks so…

A: Given data :  In 2005 the percentage of airline ticket purchasers who actually arrive to take their…

Q: x + 10 10

A: The given inequality is,x+10<3 or 2x≥10

Q: 4=6/2x-3

A: Given query is to find the value of x.

Q: Why multiplication/division and addition/subtraction have different rules in terms of identifying…

A: If we add or substract zero from a number then it will give the same number. But when we multiply of…

Q: Sex(1+ e2x)³dx

A: Integrate by using substitution

Q: Use increment method V4x + 3

A: Here we have to use the increment method to find the derivative of y=4x+3

Q: メ+4 dx x²+4

A: Given:       ∫x+4x2+4dx      =∫xx2+4+4x2+4dx Apply linearity:      =∫xx2+4dx+4∫1x2+4dx

Q: Integrate x2

A:

Q: 5+5/6=1/3x-1

A: Consider the given equation 5+56=13x-1

Q: Solve for x. 4(x + 4) - 26 = x+8

A: The given equation is: 4x+4-26=x+8   As we know from the distributive law: ab+c=ab+ac

Q: Evaluate ³*-2 dx 3x-2 e³x-2 + C O (3x-2) e³x-2 +C Ⓒ (3x-2) Ce³x-2 3x-2 3 + C

A:

Q: What is 3x / 4y

A: Topic:- algebra

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.