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
fgiga [73]
2 years ago
10

Juana is interested in estimating how long it takes students at her school to complete a maze she designed. She takes a random s

ample of 4 students and records how long it takes each of them to complete the maze. They work separately from each other, so Juana is willing to assume independence. Here are the data with summary
statistics:
Mathematics
1 answer:
NemiM [27]2 years ago
3 0

The 95 percent confidence interval for the mean time (in seconds) it takes students to complete this maze is: 39±1.96(8.83/√4).

<h3>Confidence interval</h3>

Using this formula

Confidence interval=Mean ± z × Standard deviation√Sample size

Where:

  • xMean=39
  • Z value for 95% CI=1.96
  • Standard deviation=8.83
  • Sample size=4

Let plug in the formula

Confidence interval=39±1.96×8.83/√4

Confidence interval=39±8.65

Inconclusion the 95 percent confidence interval for the mean time (in seconds) it takes students to complete this maze is: 39±1.96(8.83/√4).

Learn more about confidence interval here:brainly.com/question/16974109

brainly.com/question/15712887

You might be interested in
Write an algebraic expression that Marshall can use to determine the total cost of buying a watermelon that weighs w pounds and
VMariaS [17]

Answer:

The answer is that the cost will be a total of: $142.05. That is $125.80 for Watermelon that weighs 185 lbs and $16.25 for 5 lbs of tomatoes.

Step-by-step explanation:

Given: Watermelons are .68 / lb and tomatoes are 3.25 / lb.

Let w = watermelon weight and tomato weight.

An equation would be:

.68w + 3.25t = Total cost

For 185 lb of Watermelon and 5 lbs of tomatoes:

.68(185) + 3.25(5) =

$125.80 + $16.25 = $142.05

3 0
3 years ago
Math <br><br> Number 16 <br><br><br> Plz help me plzzz
son4ous [18]
It would be 1/6...
Hope i have done things for you
3 0
3 years ago
Read 2 more answers
Find the value of k so that (x + 3) a factor of H(x) = 3x ^ 3 - 2x ^ 2 + kx - 3
gavmur [86]

Step-by-step explanation:

By Factor Theorem, (x + 3) is a factor of H(x) if and only if H(-3) = 0.

3(-3)³ - 2(-3)² + (-3)k - 3 = 0

-81 - 18 - 3k - 3 = 0

3k = -102

k = -34.

4 0
2 years ago
Help me pleasee 30 points
Inessa05 [86]

Answer:

24

Step-by-step explanation:

8*3=24

6 0
2 years ago
Read 2 more answers
Please help me this is my last question this one is worth big points for me
Allushta [10]

Answer: your gonna add 3,000+ 5,000 then you will add test answer to 157.50 then you’ll put the answer for 3,000+5,000 then you’ll put that in the first box then you’ll add that number two 157.50

Step-by-step explanation:

Hope this helps

:3 have an amazing day or a beautiful day:)

3 0
2 years ago
Other questions:
  • An arithmetic sequence with a thrid term of 8 and constant difference of 5
    7·1 answer
  • Cuál es el número que agregado a 3 suma 8,hacer una ecuacion
    6·1 answer
  • Simplify 4a​ +​ ​ ​8b ​ -​ ​ ​6b​ +​ ​ 2a​
    13·1 answer
  • Explain which method to use in 4x^2-27=0
    8·2 answers
  • Anyone thats gives me the right answers, I will give brainliest to!
    9·2 answers
  • Is 4,564,282 prime or composite?Explain
    12·1 answer
  • What is one half divided by 8
    13·2 answers
  • Can some one please explain this? Thank you all!
    8·1 answer
  • Analyze the diagram below and answer the question that follows.
    9·1 answer
  • 3. Con la finalidad de contar con un alimento para animales con un valor nutritivo
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!