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
MAXImum [283]
2 years ago
11

The null hypothesis and the alternate hypothesis are: H0: The frequencies are equal. H1: The frequencies are not equal. Category

f0 A 10 B 30 C 30 D 10 State the decision rule, using the 0.05 significance level. (Round your answer to 3 decimal places.) Compute the value of chi-square. (Round your answer to 2 decimal place.) What is your decision regarding H0
Mathematics
1 answer:
OLga [1]2 years ago
5 0

Answer:

Reject H0

Step-by-step explanation:

Given :

H0: The frequencies are equal. H1: The frequencies are not equal

Category f0 A 10 B 30 C 30 D 10

Total f0 = (10 + 30 + 30 + 10) = 80

Expected frequency is the same for all categories :

Expected frequency = 1/4 * 80 = 20

χ² = Σ(observed - Expected)² / Expected

χ² = (10-20)^2 / 20 + (30-20)^2 /20 + (30-20)^2 / 20 + (10-20)^2 / 20

χ² = (5 + 5 + 5 + 5) = 20

Pvalue = 0.00017

Pvalue < α

You might be interested in
Gotta go back to school today..
PIT_PIT [208]

Answer:

I  believe its 33.60 because if you add up 33.+5% that would give you 33.6 so its 33.60

Step-by-step explanation:

Hope its right

3 0
3 years ago
Help please I'ma giving alot of points if you say something else just to get the points I will report ​
jenyasd209 [6]

Answer:

Read the explanation

Step-by-step explanation:

look at the photo

8 0
2 years ago
A bakery sold 36 brownies in a day, which was 30% of the total items sold that day. What was the total number of items the baker
babymother [125]

Answer:

120

Step-by-step explanation:

We know that 36 is 30% of total items

So our equation would be 36/? = 30/100

From there we cross multiply so 36x100 = 3600

From there, we divide 3600 by 100

Therefore, your answer is 120

6 0
2 years ago
A jar contains 5 orange marbles, 3 black marbles, and 6 brown marbles. event a = drawing a brown marble on the first draw event
tino4ka555 [31]

The probability of event A and event B IS  15/91.

What is the probability?

Probability determines the odds that a random event would occur. The odds lie between 0 and 1.

The probability of event A  = number of brown marbles / total number of marbles

= 6/14

The probability of event B = number of orange marbles / total number of marbles -1

= 5/13

P(A and B) =6/14 x 5/13

                 = 30/182

                 = 15/91

To know more about probability visit:

brainly.com/question/3142525

#SPJ4

7 0
1 year ago
Reduced form of 6/8.
drek231 [11]

Answer:

3/4

Step-by-step explanation:

7 0
1 year ago
Other questions:
  • Solve this and explain it for me
    13·1 answer
  • How do you do number 2? Help please and thank you.
    5·1 answer
  • What are the steps and answer to <br> 1/3k+80=1/2k+120
    12·1 answer
  • Find the area of this parallelogram. Be sure to include the correct unit in your answer.
    9·1 answer
  • Find the discount. round your answer to the nearest percent. item: rocking chair regular price: $130.00 sale price: $100.00 23%
    10·1 answer
  • Which lines are parallel
    12·1 answer
  • Nknjjhbvyugvtfituyjnjjjjjnnnnj
    15·1 answer
  • Rotate and find the reference angle for 207°.
    7·1 answer
  • Find the indicated missing value
    8·1 answer
  • 2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!