20. Hiring In preparing a report on the economy, we need to esti- mate the percentage of businesses that plan to hire additional employees in the next 60 days. a) How many randomly selected employers must we contact in order to create an estimate in which we are 98% confident with a margin of error of 5%? b) Suppose we want to reduce the margin of error to 3%. What sample size will suffice? c) Why might it not be worth the effort to try to get an interval with a margin of error of only 1%?

Q: what percent od 60 is 15

A:

Q: 10 Show that the equation 2x+e" - 2 =0 has a root between x 0 and x= 1. Using the Newton- Raphson…

A:

Q: (40+9/5) +35%

A:

Q: 7) Find x. 8x 22 3x 2

A:

Q: What is YZ to the nearest tenth? Y 14 12 98° YZ =

A:

Q: Let n = 60, p = 0.65, P = .35. Find p90 ?

A:

Q: %3D Salve for X

A: we have to find the value of x

Q: 84 %. $25.50? of udiat auauf is b. 2000"% of cokat amaut 4300?

A: Percentage : It is hundredth part of a quantity a% of b is represented as a100x b Here a is…

Q: 0.5x1.2 =

A: Here we have to multiply.

Q: Solve for x. 6 =664 %3D

A: Here we find value of x

Q: 20 W op 4% -(X+Y) ce (x+y) axdy се D

A:

Q: 48 = 6+ y y:

A: Given,    48 = 6 + y   Now, subtracting 6 from both the sides,  48-6 = 6 + y - 6   42 = y

Q: 6 2/5% of 120 as percentage

A:

Q: 0.5(10.1)605)

A:

Q: 4x1 – 8x, =- 24 -x1 + 6x, = 34

A: Solve the two equations using the substitution method. Take x1 from the first equation and…

Q: 4pt/min=?qt/min

A: Here,.

Q: 7.88 as a percent

A: Given query is to write fraction to percentage form.

Q: 9. 23d = 2,392 %3D

A: Here we have given  23d = 2392 Now we need to obtain the value of d By division algorithm we know…

Q: 0.38 1/2 as a percent

A: 0.38  1/2 as a percent

Q: 0.2 is what percent of 16?

A: We have to find that 0.2 is what percent of 16.

Q: Find mVU . 30 T. V

A:

Q: A = 4Jtr?, for r %3D 6.

A: On solving this we will get

Q: 0.348=%

A:

Q: 7.3%=

A: We will use standard definition of percent to solve this.

Q: 16. 60 #17

A:

Q: S S dydz = %3D

A:

Q: C. 10с%3D 13.71

A: 10c= 13.71 then, c= 13.71 /10 = 1.371

Q: p = 100 − e0.1q; p = 40

A: Put p=40 and solving the equation

Q: 157.2 is 52 2/5% of what

A: Let x be the required number.Given that, 52 2/5% of x is 157.2. That is,

Q: x-6x

A: Given : ∫dxx2-6x

Q: Answers 14. 3V2 + 6cOs.x = 0

A:

Q: 34 . 23 = 64+3 %3D

A: a^n.b^n= (a.b)^n a^n.a.^m= a^(n+m)

Q: Solve for x.

A:

Q: 90% of  = 54

A: let 90 % of x = 54

Q: Between z=1.40 and z=2.03

A: We have to find area between z=1.40 and z=2.03

Q: tanZ= 7.1154

A: Please refer the attached image for complete solution. THANK YOU.

Q: L M 165% N

A:

Q: .

A:

Q: 00 n = 1

A:

Q: 555 Y= x*+ Y = 4 2. Z²

A: Multiple variable calculus

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A:

Q: Q# 8 [(-1)" | n=

A:

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.