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
rewona [7]
3 years ago
9

One hundred draws are made at random with replacement from box A, and 250 are made at random with replacement from box B. (a) 50

of the draws from box A are positive, compared to 131 from box B: 50.0% versus 52.4%. Is this difference real, or due to chance
Mathematics
1 answer:
Yuliya22 [10]3 years ago
3 0

Answer:

Therefore WE accept the Null hypothesis H_0 That 50.0% versus 52.4%.difference is real

Step-by-step explanation:

Sample size A n_a=100

Sample size B n_b=250

Positive draw from box A n_a=50

Positive draw from box b n_b=131

Generally the equation for Probability of Positive draw from Box A is mathematically given by

 P_1=\frac{50}{100}

 P_1=50%

Therefore

 1-P_1=50\%

Generally the equation for Probability of Positive draw from Box A is mathematically given by

 P_1=\frac{131}{250}

 P_1=52.4%

Therefore

 1-P_1=47.6\%

Generally the equation for Standard error S.E is mathematically given by

 S.E=\sqrt{\frac{n_1(p_1)*(1-P_1)}{n_1^2}+\frac{n_2(P_2(1-p^2))}{n_2^2}}

 S.E=\sqrt{\frac{100(0.50)*(50)}{100^2}+\frac{(250)(0.524(47))}{250^2}}

 S.E=0.592

 S.E=59.2\%

Therefore

 Z=\frac{50-52.4}{59.2}

Generally

 P value P>0.05

Therefore WE accept the Null hypothesis H_0 That 50.0% versus 52.4%.difference is real

You might be interested in
Please help me ASAP!!!
Mama L [17]
9/20 

A percentage is the same as showing a number over 100 and if we multiply 20 by 5 we get 100.  So if we multiply 9 by 5 we get 45, giving us 45/100 which can be shown as 45%.

As a decimal, well if we say 100% equals 1.0, then 45% equals 0.45

7 0
3 years ago
Factor X^3-7x^2-5x+35
Vinil7 [7]
The answer would be
- (34x^3 - 35)
3 0
3 years ago
Read 2 more answers
Garrett can complete four laps around the track in 7 minutes and 45 seconds. How many FULL LAPS can he complete in 1 hour?
tiny-mole [99]

Answer: N/A

Step-by-step explanation:

this answer is not physically possible cause the human body is not capable of going that fast continually for an hour. If you are in athletics and run everyday you would understand. i mean come on don't believe me? your try.

4 0
3 years ago
Joseph drives 125 miles in 2 1/2 hours. At the same rate , how far will he be able to travel in 6 hours ?
Mariana [72]

Answer:

Step-by-step explanation:

300 miles

125/2.5= 50 miles per hour

50*6=300

8 0
3 years ago
Read 2 more answers
Dan draws a circle with a radius of 8 inches. Question 1 Part A: What is the circumference of Dan's circle, inches? If needed, r
geniusboy [140]

Answer:

The circumference of Dan's circle is approximately 50.27 inches.

Step-by-step explanation:

The length of the circumference (s), measured in inches, is determined by the formula:

s = 2\pi\cdot r (1)

Where r is the radius, measured in inches.

If we know that r = 8\,in, then the length of the circumference is:

s = 2\pi\cdot (8\,in)

s \approx 50.27\,in

The circumference of Dan's circle is approximately 50.27 inches.

8 0
3 years ago
Other questions:
  • What’s 7c(-31) answer
    6·1 answer
  • Can someone help me asap! thank you so much
    5·1 answer
  • Can someone help me find the answers to this question
    9·1 answer
  • The metric prefix for denoting 1000X is what
    7·1 answer
  • 1/2x=13 help!!?????????
    12·2 answers
  • so i have this question that says I was at a grocery store and my total is 35.25 but I get to the register and find out it is 25
    6·1 answer
  • If 2c - d = 3d - 2c, what is d in terms of c
    8·1 answer
  • What is the rate of Change in y=8x - 4
    9·1 answer
  • Can you write down the days of the week with the number "500" next to them for me. Make this 2 times thank you :)
    14·2 answers
  • a simple random sample is group of answer choices a sample that gives every possible sample of the same size from the same popul
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!