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
melamori03 [73]
3 years ago
5

find the value of x2 values that separate the middle 90% from the rest of the distribution for 8 degrees of freedom

Mathematics
1 answer:
Anettt [7]3 years ago
4 0

Answer:

With alpha 0.95 and 8 degrees of freedom χ²= 2.73

And with alpha 0.05 and 8 degrees of freedom χ²=15.51

Step-by-step explanation:

The significance level ∝ = 1- 0.9 = 0.1

But we need the area of the middle so we divide this significance level with 2

so that we get exactly the middle area .

Dividing 0.1/2= 0.05

So we will have two values for chi square

One with  0.9 + 0.05 = 0.95 alpha and one with 0.05 alpha . This is because the chi square is right tailed.

So with alpha 0.95 and 8 degrees of freedom χ²= 2.73

And with alpha 0.05 and 8 degrees of freedom χ²=15.51

This can be shown with a graph.

You might be interested in
A gardener is planting two types of trees:
melomori [17]

First convert the feet to inches:

3 feet= 36 in.; 4 feet=48 in.

Make an equation for each one:

Type A: h=36+15x

Type B: h=48+10x

Since the questions wants the heights to be equal, h=h so you can substitute so you have:

36+15x=48+10x

5x=12

x=2 2/5 years or 2.4 years


3 0
3 years ago
If each can costs $23.97 plus 6% tax, what is the total cost? Round to two decimal places.
kap26 [50]
The total cost for one can is: $25.41.
__________________________________________________
Let us assume that we want to know the total cost of ONE CAN.
_____________________________________________
To calculate our answer:
_______________________________
$ 23.97 + [ (6/100) * 23.97)] = Our answer, in dollars.
__________________________________________
Note: "6%" = 6/100 = 0.06
_______________________
Rewrite as:
____________
$ 23.97 + [ (6/100) * 23.97)]  = our answer, in dollars; 
_____________________________________________
    $ 23.97 + (0.06 * 23.97)

            =    $ 23.97 + 1.4382

            =      $ 25.4082 ; Round to decimal places, to get:
                                         <span>→ $ 25.41
</span>__________________________________________
4 0
3 years ago
Beverly drove from the Atlantic City to New York she drove 284 miles at a constant speed of 58 mph how long did it take Beverly
lubasha [3.4K]

Answer:

4.9 hours = 4 hours 54 minutes

Step-by-step explanation:

speed = distance/time

time * speed = distance

time = distance/speed

time = (284 miles)/(58 mph) = 4.9 hours

4.9 hours - 4 hours = 0.9 hours

0.9 hours * (60 minutes)/(1 hour) = 54 minutes

4.9 hours = 4 hours 54 minutes

8 0
3 years ago
On Friday night 225 people saw the dinosaur exhibit at the museum this amount represents 20% of the people who visited the museu
Igoryamba
20 %  = 225
1%  =  225 / 20
100% =  225 * 100 / 20
           =   1125  answer
8 0
3 years ago
PLEASE SOMEONE HELP ME!!! I WILL GIVE BRAINLIEST TO CORRECT ANSWER!!! PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
taurus [48]
8.8 squared + 9.5 squared = square root 12.94 rounded 12.1
3 0
3 years ago
Other questions:
  • In the figure which point has coordinate
    8·1 answer
  • the diameter of a quarter is 24.26 millimeters and the width is 1.75 millimeters. What is the approximate volume of the roll of
    14·1 answer
  • What is the average rate of change of the function below on the interval from x = 0 to x = 2?
    5·1 answer
  • A housepainter mixed 3 1/2 pints of blue paint in a bucket with 1 1/6 pints of white paint. How much paint was in the bucket? Th
    13·1 answer
  • The sides of a square field are 12 meters.A sprinkler in the center of the field sprays a circular are with a diameter that corr
    11·1 answer
  • Is this a valid conclusion?<br><br> A.<br><br> B.<br><br> C.<br><br> D.
    6·2 answers
  • A one-quart container of tomato soup is shaped like a rectangular prism. A soup bowl shaped like a hemisphere can hold 8 oz of l
    13·2 answers
  • If a project is handed in late, you receive
    6·1 answer
  • 3) The elevator in a large office building is not working so you start climbing the stairs. The first flight
    8·1 answer
  • If BD is congruent to BC, BD = 5x - 26, BC = 2x + 1, and AC = 43, find AB
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!