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
babymother [125]
3 years ago
8

Express the confidence interval 0.319 < p < 0.488 in the form of p ± E.

Mathematics
1 answer:
KengaRu [80]3 years ago
8 0

Answer:

0.4035+/-0.0845

Step-by-step explanation:

The fundamental step would be to determine the values of p and E which i believe is the margin of error in this case. Consider the following two equations;

p-E=0.319\\p+E=0.488

We simply add the two equations and solve for p;

2p=0.807\\p=0.4035

We then substitute this value of p in either equation and solve for E;

0.4035-E=0.319\\E=0.0845

Since we have both p and E, the confidence interval can thus be written as;

0.4035+/-0.0845

You might be interested in
Whoever is willing to help me out please do so. I will give points and brainliest. I have a headache so yeah..
34kurt

Answer:

1095

MATH        

geometry

suks

7 0
3 years ago
Read 2 more answers
Can someone plz answer my question plz!!!!! It's in the picture
djyliett [7]

-- If the spinner is honest and the sections are all the same size, then
each section should have an equal chance of being landed on.

-- If there are 4 sections, then the chance of landing on each one
should be  1/4  or  25%.

-- The chance doesn't depend on how many times you try it.
If there are 4 sections, then each one should come up
25% of the time.


8 0
2 years ago
Jackie cut a 2 yard spool into 5 equal lengths of ribbon what is the length of each ribbon in yards
ratelena [41]
2/5 yards 
i hope its right
5 0
3 years ago
Read 2 more answers
A survey of 340 randomly chosen US adults found that 60% of the 150 men and 50% of the 190 women ran a five-kilometer race durin
Andrej [43]

Answer:

The p-value is less than the significance level, so we will reject the null hypothesis, and conclude that at 5% significance level, the proportion for women that ran 5 km is more than the proportion of male that ran the 5 km. Thus, women are more likely to run the 5 km race.

Step-by-step explanation:

We are given;

Number of males selected; n₁ = 150

Number of females selected; n₂ = 190

Proportion of the males; p₁ = 0.6

Proportion of females; p₂ = 0.5

Let's define the hypotheses;

Null hypothesis; H0: p₁ ≥ p₂

Alternative hypothesis; Ha: p₁ < p₂

Now, the z score formula for this is;

z = (p₁ - p₂)/√(p^(1 - p^))(1/n₁ + 1/n₂))

Where;

p^ = (p₁ + p₂)/2

p^ = (0.6 + 0.5)/2

p^ = 0.55

Thus;

z = (0.6 - 0.5)/√(0.55(1 - 0.55))((1/150) + (1/190))

z = 0.1/0.0543

z = 1.84

From online p-value from z-score calculator attached, using z = 1.84, significance level = 0.05, one tailed hypothesis, we have;

P-value = 0.033

The p-value is less than the significance level, so we will reject the null hypothesis, and conclude that at 5% significance level, the proportion for women that ran 5 km is more than the proportion of male that ran the 5 km. Thus, women are more likely to run the 5 km race.

Although if we check at 0.01 significance level, we will not have the same answer as the p-value will be greater.

3 0
3 years ago
−
irakobra [83]

Answer: =296

Step-by-step explanation: −2*4=-8+20=28*3=84+48=132*2=164−2=162*4+20*3+48*2= 296

8 0
3 years ago
Other questions:
  • A local drama production sold tickets for a play. Adult tickets sold for $10 each and child tickets sold for $5
    10·1 answer
  • Work out 2/3 + 3/4? <br> Work out 5 times 3/4? <br> PLEASE HELP ASAP!!!
    9·2 answers
  • What is the missing fraction for the equation? <br> 9/10 + ?/? = 99/100
    15·1 answer
  • Question 5 (Essay Worth 5 points) Jessica purchased a DVD that was on sale for 12% off. The sales tax in her county is 3%. Let y
    15·1 answer
  • I don’t understand this problem
    11·1 answer
  • I need help asap!! Points of 10. ​
    13·1 answer
  • Explain or show that the point (5,−4) is a solution to this system of equations:
    13·1 answer
  • PLZ HELP!!! WAHHH &gt;n
    13·2 answers
  • 2E. Point B is halfway between A and C. The distance from C to D is the same as the distance from D to E, which is the same as t
    15·1 answer
  • HELP WITH GEOMETRY TEST QUESTION PLEASE
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!