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
qwelly [4]
2 years ago
8

A cell phone company offers two plans to its subscribers. At the time new subscribers sign up, they are asked to provide some de

mographic information. The mean yearly income for a sample of 39 subscribers to Plan A is $55,575 with a standard deviation of $8,970. For a sample of 29 subscribers to Plan B, the mean income is $59,475 with a standard deviation of $6,942.
At the .025 significance level, is it reasonable to conclude the mean income of those selecting Plan B is larger? Hint: For the calculations, assume the Plan A as the first sample.
The test statistic is ______. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
The decision is _______
the null hypothesis that the mean of Plan B is larger.
The p-value is ______
(Round your answer to 2 decimal places.)
Mathematics
1 answer:
slavikrds [6]2 years ago
3 0

Answer:HI

Step-by-step explanation:HI

You might be interested in
Tell whether the triangle with the given side lengths is a right triangle.
Lerok [7]

Answer:

No

Step-by-step explanation:

6 0
3 years ago
In triangle ABC, medians AD, BF, and CE intersect at G. What is the length of GE is CH=12?
sashaice [31]
You do not have any point labeled "H" in your diagram.

What I can tell you is that point "G" (where all 3 medians meet) is called a centroid.
<span>
Along </span>each<span> median:</span>
the distance from EACH vertex to the centroid (point G) is TWICE the distance from the centroid to the side.
<span>CG = 2*GE   AG = 2*GD   BG = 2*GF


</span>
6 0
3 years ago
Can anybody helppp meee please
crimeas [40]

Answer:

r^2=(A/pi)

Step-by-step explanation:

if A=pi*r^2 then maybe dividing by pi to get r^2 alone says r^2=(A/pi) or to get rid of the exponent you may square root each side so r=(sqrt(A/pi))

3 0
3 years ago
South School has a circular pattern on the playground that has a radius of 6 feet. Find a. the circumference of the pattern and
katrin [286]

Answer:

Circumference: 37.68

Area: 113.04

Step-by-step explanation:

the formula to find the circumference is 2 x 3.14 x r

r is the radius so you plug in 6 for that

2 x 3.14 x 6 = 37.68

the formula to find the area of a circle is 3.14 x r ²

r is still the radius so you plug in 6 for that

3.14 x 6² = 113.04

6 0
3 years ago
kathy plans to bake 2 types of cookies to take to the party. She needs to be sure she has enough ingredients. The chocolate chip
myrzilka [38]

Answer:

4 11/12

I hope I helped! (If I got it wrong, feel free to tell me I got it wrong)

7 0
3 years ago
Other questions:
  • If A = 1<br> B = 1<br> What is A+B<br> A) 2<br> B) 2<br> C) 2 <br> D) 2
    10·2 answers
  • . -2x + 9x<br> Simply the expression
    13·2 answers
  • Triangle A B C is cut by line segment M N. Line segment M N goes from side A B to side B C. The length of M N is 9 feet. The len
    11·2 answers
  • Two angle measures in a scalene triangle are 38° and 25°. What is the measure of the third angle?
    7·2 answers
  • Please help with number 22
    7·1 answer
  • 6. You worked a total of 200 hours this summer at the local restaurant. Some of
    10·1 answer
  • How can we use variables and equations to help us <br> solve problems?
    10·2 answers
  • 6) HELP I got it wrong can someone plz fix it and tell me what I did wrong!
    13·2 answers
  • What is the equation for the trendline
    8·2 answers
  • Right triangles 1,2 and 3 are given to its all their angle measures and approximate side lengths
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!