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
Black_prince [1.1K]
3 years ago
14

A cell phone service provider has selected a random sample of 20 of its customers in an effort to estimate the mean number of mi

nutes used per day. the results of the sample included a sample mean of 34.5 minutes and a sample standard deviation equal to 11.5 minutes. based on this information, and using a 95 percent confidence level:
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
8 0
So, we are doing mean and median range
or another else
You might be interested in
A washing machine is filling up with water at a constant rate. The rate is Three-fourths of a gallon in StartFraction 1 over 5 E
konstantin123 [22]

Answer:

3/4 in 1/5 of 60 sec

1/5*60=12

3/4 in 12 seconds

3/4*5=15/4=3 3/4

He multiplied 3/4 by 1/5 instead of by its reciprocal , 5.

12/4=3

3 mph

3 0
3 years ago
Read 2 more answers
I need help if you answer this your littearly a pro hacker pls​
Anit [1.1K]

Answer:

24 meters cubed

HOPE THIS HELPS

- Todo ❤️

Step-by-step explanation:

V=Bh

V=6*4

V=24

6 0
3 years ago
Read 2 more answers
The sector of a circle has an area of 104pi/9 square inches and a central angle with measure 65 degrees. What is the radius of t
vagabundo [1.1K]

Answer: b : 8

Step-by-step explanation:

4 0
2 years ago
Jeff subscribed to cable for 75.00 a month and 140.00 installation andrew has another cable co. For 20.00 installation and 90.00
lilavasa [31]
8 months; $740

75x+140=90x+20
Find x then plug it in to find the cost
7 0
3 years ago
True or false when we carry out a chai square test of Independence the alternate hypothesis states that the two relevant classif
Anna35 [415]

Answer: False

Step-by-step explanation:

degrees of freedom=(r-1)(c-1)

I don't know if I'm exactly right

if not sorry

6 0
3 years ago
Other questions:
  • every morning Halle goes to school with a 1 liter bottle of water. she drinks 1/4 of the bottle before school and 2/3 before lun
    10·2 answers
  • Walt is 3 years older than Ralph Ralph is 4 years older than Henry. If Walt is 48, how old is Henry?
    9·2 answers
  • What is the value of x?<br>24​
    5·1 answer
  • The point (5,-6) lies on a circle and the center of the circle is at the point (5,-8).
    11·1 answer
  • Whats 2(-1)2 +4(-1)-1=
    5·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!! 20 POINTS!!!!!!!!!!!!!!!!
    11·1 answer
  • I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would
    5·1 answer
  • Describe in detail how you would create a number line with the following points: 3, 2.25, the opposite of 4, and – (–1fraction o
    11·1 answer
  • A spinner is divided into 12 equal sectors labeled with the letters A through L The spinner is spun 80 times.
    11·2 answers
  • Hi I need help with this question <br> 2 1/7+3/7(3x-5)=-4
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!