perate continuously for at least 7 minutes longer than the old battery. To test the claim, the company selects a nple random sample of 100 new batteries and 100 old batteries. The old batteries run continuously for 190 inutes with a standard deviation of 20 minutes; the new batteries, 200 minutes with a standard deviation of 40 inutes. Test the engineer's claim that the new batteries run at least 7 minutes longer than the old. Use a 0.05 vel of significance. (Assume that there are no outliers in either sample.) hat is the null hypothesis? hat is the alternative hypothesis? hat is the test statistic to be used? hat is the appropriate critical region? hat is the actual value of the test statistic? hat is the statistical decision? hat is the statistical conclusion?

Q: 48> -6x

A: The inequality is

Q: The product of -15 and a number no more than 60

A:

Q: -10>x-2>-12

A: given equation

Q: 4 + 5x = 36 - 3x

A: We will solve for 'x' .

Q: - 9x + 4 = 49

A: Solving for x

Q: + + = 20 + + + + X = 15 - + X + X = 42 =3 =14 =27

A:

Q: 3. Discuss the following characteristics of the curve representing wolf population (6A,1C) a.…

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Q: y-14 = -10 + 12/y

A: It is a quadratic equation question. In this we will take LCM first then we will solve the quadratic…

Q: y+ 10≥-30

A: Solve the given inequality

Q: 3y = -x+6 %3D 2x + 4y = 12

A:

Q: X+15 =200 5x +7==17

A:

Q: 44 + A4 + 44 = 30 A4 =20 = 13 + %3D

A: We are given for pictorial representation of three things: boy, shoe and burger. We need to get the…

Q: 12-2x=2

A: We have to solve for x  12 - 2x = 2

Q: a+ 13 >- 23

A:

Q: 11y + 22 2 > 11

A:

Q: y + 8 = 12 y =

A: when left side digit shift to right side then it becomes negative if digit is positive and vice…

Q: -3+9x=12

A:

Q: 7x + 8y = 67  3x + 6y = 39

A: Solving system of equations means finding the value of the variable involved into the equation.

Q: Y+4=15

A:

Q: a2-7a+10=0

A: We have to factor 10 so that the sum of the factors = -710= -5 times -2 and -5 + (-2) =-7 too So we…

Q: 4x - 2 s -22

A:

Q: 20+(-4)(-5)

A: The calculation for 20+(-4)(-5) is presented as follows:

Q: An expression represent 24 less than g

A: The given number is 24. The given variable is "g".

Q: -23+3k>-5

A: Given that  -23+3k>-5 To solve the above expression.

Q: 25x+75>450

A: 25x +75 > 400

Q: What is the product of -4 and 18

A: x*y = xy

Q: -2/4x + 4 + 23 = 3

A:

Q: 3+3=? Please explain

A: To find the value of the following expression. 3+3=?

Q: -8=-4+v

A: The given equation is,

Q: 4+y less than 13

A: (4+y) less than 13   Reduce (4+y) from 13

Q: Selve by omplathg 29uate

A: ANSWER : x = 3b , -b/2 EXPLANATION :

Q: (6x-y > -3 13. ly>x-2 14

A: First draw the two straight line 6x-y=-3, y=x-2.

Q: Is -1 greater than -4

A: Integer type

Q: Evaluate 4a + b - 12 when a = - 1 and b = 2.5

A: See the solution below:

Q: -10, -17/2, -7, -11/2

A:

Q: 4x+7+2x+5=180

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Q: 2y-4>-6 and 3y+1<13

A:

Q: passes through (-4, -3)

A: Given: (-4, -3), (-9, 26), and (-3, 3

Q: X2-13x>48

A:

Q: 2w+515

A: In equation we are equating two sides left hand side and right hand side. It contains variable,…