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
Hey can someone please help me asap
dmitriy555 [2]

Answer:

slope: 1/5

y-intercept: 4

5 0
3 years ago
How do I remember the customary units?
soldier1979 [14.2K]
Write it down.

Easy and simple
3 0
3 years ago
Solve the equation by completing the square. Round to the nearest hundredth if necessary.
nikdorinn [45]
This answer would be A hope this helps
6 0
2 years ago
The executives in a company are four women and three men. Three are to be chosen at
Lisa [10]
The correct answer is A i hope this helps
4 0
3 years ago
Which statement is true? All squares are rectangles. All quadrilaterals are rectangles. All parallelograms are rectangles. All r
azamat

Answer:

all squares are rectangles is true

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • The question is down below
    11·1 answer
  • Five classmates came to Dan’s birthday party. This is half as many as the number of his summer camp friends who came and one thi
    8·2 answers
  • Janice wears uniform number 6 .Lily's uniform number is 4 times as great as Janice's. Addison's uniform number is 20 more than J
    15·2 answers
  • Write the sum of the numbers as the productof their gcf and another sum 32+20 and 18+27
    15·2 answers
  • Ed Sloan invests $1,600 at the beginning of each year for eight years into an account that pays 10% compounded semiannually. The
    13·2 answers
  • If 3a +5b =10 and 5a +3b =30 what is the average of a and b?
    14·1 answer
  • How many cups are in 1 quart?​
    14·1 answer
  • How is a common denominator in a common multiple alike
    12·2 answers
  • А + B = 8, A*C = 21, B-D=5<br>С*D= 9<br>find<br>А,В,С,D​
    8·1 answer
  • Help is this the right answer if not can u give me the correct answer
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!