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
Arada [10]
3 years ago
14

N = 9

Mathematics
1 answer:
g100num [7]3 years ago
7 0

Answer:

The <em>p</em>-value is 0.809.

Step-by-step explanation:

In this case we need to perform a significance test for the standard deviation.

The hypothesis is defined as follows:

<em>H</em>₀: <em>σ</em>₀ = 4 vs. <em>Hₐ</em>: <em>σ</em>₀ ≤ 4

The information provided is:

<em>n</em> = 9

<em>s</em> = 3

Compute the Chi-square test statistic as follows:

\chi^{2}=\frac{(n-1)s^{2}}{\sigma_{0}^{2}}

     =\frac{(9-1)\cdot (3)^{2}}{(4)^{2}}\\\\=\frac{8\times 9}{16}\\\\=4.5

The test statistic value is 4.5.

The degrees of freedom is:

df = n - 1

   = 9 - 1

   = 8

Compute the <em>p</em>-value as follows:

p-value=P(\chi^{2}_{9}>4.5)=0.809

*Use a Chi-square table.

Thus, the <em>p</em>-value is 0.809.

You might be interested in
Easy money : Explain how to muliply <br> 4 X 4 <br> 5 X 5<br> and <br> 6 X 6
defon
4 x 4 = 16
5 x 5 = 25
6 x 6 = 36
4 0
2 years ago
Read 2 more answers
Helppp which one is it pleasee
solong [7]

Answer:

I think is D because u are putting the opposite in the first solutions u got a positive equation so for the other solutions i think u maybe are going to got the opposite I may be wrong But I just trying to help so sorry if u got it wrong

4 0
3 years ago
PLZZZZZ NEED HELP!!!!!!!
ruslelena [56]

Answer:

1.90

Step-by-step explanation:

7 0
3 years ago
How do you find the domain on a graph
nadya68 [22]

The domain is all the input values that's shown on the x-axis on the graph.

7 0
3 years ago
Which measurements could not represent the side lengths of a right triangle?
IRISSAK [1]

Answer:

C

Step-by-step explanation:

3, 4 and 5 cant be a right triangle

3 0
2 years ago
Other questions:
  • How do you write in solution set?
    14·1 answer
  • I need to put parenthesis in order to make this statement true.....help
    15·2 answers
  • In city A, the mean commute to work is 17 miles with a range of 12 miles to 19 miles. In city B, the mean commute to work is 22
    10·1 answer
  • Can someone help me on H?
    15·1 answer
  • Find the LCD of the following list of fractions. 2/21, 10/14, 17/22 LCD=
    5·1 answer
  • Write the equation of the line represented by the following graph
    14·2 answers
  • Evaluate the expression: -6 ( -3/12 ) ( -4 ) ( 5) divided by ( 10 ) <br><br> Please show your work
    14·1 answer
  • *URGENT*
    9·2 answers
  • Triangle a need to be rotated in a 90 degrees counterclockwise
    13·1 answer
  • Find x.<br>I need the answer asap, please.​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!