1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tems11 [23]
3 years ago
14

A union of restaurant and foodservice workers would like to estimate the mean hourly wage, , of foodservice workers in the U.S.

The union will choose a random sample of wages and then estimate using the mean of the sample. What is the minimum sample size needed in order for the union to be confident that its estimate is within of ? Suppose that the standard deviation of wages of foodservice workers in the U.S. is about .
Mathematics
1 answer:
Mkey [24]3 years ago
5 0

Answer: n = [1.96*2.15/0.35]^2 = 145

Step-by-step explanation:

You might be interested in
Find f(x) of |2x-2| if x is -1.​
Pavlova-9 [17]

Answer:

4

Step-by-step explanation:

x = -1

|2x-2| = |2(-1)-2| = |-2-2| = |-4| = 4

4 0
3 years ago
Read 2 more answers
Elen planned to read a book of 40 pages in two days. On the first day, she read 4 hours reading 7 pages per hour. On the second
amm1812

Ok so 7 times 4 is 28 so she read 28 the first day. For the second day since 40-28= 12, 12 divided by 2 is 6. So she read 6 pages per hour.

7 0
3 years ago
Read 2 more answers
Now consider a cube of mass m with edges of length
LekaFEV [45]
1/6 ma^2

You can solve this by considering moment of inertia of a square plate along the central axis and using the perpendicular axis theorem.
4 0
4 years ago
The interior angles of a polygon are; (3x + 30), x, 2x, (x + 20) and 3x. find the value of x
julia-pushkina [17]

Answer: 49

Step-by-step explanation:

This polygon has 5 sides, meaning its interior angles add to 180(5-2)=540^{\circ}.

3x+30+x+2x+x+20+3x=540\\\\10x+50=540\\\\10x=490\\\\x=49

5 0
2 years ago
Calculate the speed of a car that travels 50 km (kilometers) in 30 min (minutes). Question 1 options: 1. 6 km/min (kilometers pe
algol13

The speed of this car is equal to 1.6 km/min.

<u>Given the following data:</u>

  • Distance = 50 kilometers.
  • Time = 30 minutes.

To calculate the speed of this car:

Speed can be defined as the distance travelled by an object per unit time and it is usually measured in meter per seconds (m/s). Also, speed has magnitude but no direction and as such it is a scalar quantity.

Mathematically, speed is given by the formula;

Speed = \frac{distance}{time}

Substituting the given parameters into the formula, we have;

Speed = \frac{50}{30}

Speed = 1.6 km/min.

Read more: brainly.com/question/13102821

7 0
2 years ago
Other questions:
  • Graph the following inequality. Then click to show the correct graph. x &lt; -1
    8·1 answer
  • Point J (−4, −6) and point K (4, 4) are located on a coordinate grid. A blank one is shown above.
    14·2 answers
  • What is the first step in solving the inequality -2x &gt; -10
    12·1 answer
  • Julie ran 8 laps around her track that is a quaurter mile in 18 mins. her average velocity was __________m/s
    8·2 answers
  • Paula bought a ski jacket on sale for $8 less than half its original price. She paid $87 for the jacket. What
    9·1 answer
  • Evaluate the expression for r = –1 and s = 31.<br><br> 39|r| + s =
    8·1 answer
  • Which numbers are irrational? Select all that apply.
    11·1 answer
  • (02.07) If the measure of y=35 degrees, and the measure of x=110 degrees, what is the measure of angle 2? A X o B 85 a а b b 145
    9·1 answer
  • 2x<br> х<br> (x +20)<br> what’s the value of “x”?
    10·1 answer
  • PLEASE HELP LAST PROBLEM I NEED HELP ON (Homework Help)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!