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
topjm [15]
2 years ago
14

Sara is studying how quickly adults tire after eating turkey. She splits a group of 20 adults into 2 groups. One group is given

turkey to eat and the other group is not given anything to eat. Sara asks the adults to start exercising at the same, and to stop when they tire, measuring the time each adult stops exercising. She finds that the adults who did not eat turkey exercised 2 minutes longer than those who did eat turkey. Sara rerandomizes the data, calculates the difference between the means, and creates the dot plot shown below. Based on the data, can Sara conclude the difference is significant?
dot plot ranging from negative two to two in increments of point five with frequencies of two, three, four, five, six, nine, six, twelve, fifteen, twelve, nine, ten, five, four, three, and two respectively


No, Sara cannot conclude the difference is significant because a 2-minute difference is likely to happen by chance.
Yes, Sara can conclude the difference is significant because 0.25 is the difference in means that occurs most often.
No, Sara cannot conclude the difference is significant because 0.25 is the difference in means that occurs most often.
Yes, Sara can conclude the difference is significant because a 2-minute difference is not likely to happen by chance.
Mathematics
2 answers:
nlexa [21]2 years ago
7 0

Answer:

 Yes, Sara can conclude the difference is significant because a 2-minute difference is not likely to happen by chance.

pishuonlain [190]2 years ago
5 0

Answer:

Answer is Yes, Sara can conclude the difference is significant because a 2-minute difference is not likely to happen by chance.

Step-by-step explanation:

You might be interested in
organic milk cost $2.25 per half gallon at this rate how can the price of organic milk be determined ?
cupoosta [38]
Per half gallon it is $2.25
1/2 G=$2.25
1 G=$4.50
1 1/2 G=$6.75
And so on...
Hope this helped
3 0
3 years ago
Samples of skin experiencing desquamation are analyzed for both moisture and melanin content. The results from 100 skin samples
zheka24 [161]

Answer: a. 0.40   b. 0.23  c . 0.435   d . 0.25

Step-by-step explanation:

                                   melanin      content    Total

                                            high   low

moisture   high                     13      10                23

content    low                       47      30                77

 Total                                   60      40              <u> </u><u>100</u>

Let A denote the event that a sample has low melanin content, and let B denote the event that a sample has high moisture content.

a) Total skin samples has low melanin content = 10+30=40

P(A)=\dfrac{40}{100}=0.40

b) Total skin samples has high moisture content = 13+10=23

P(B) =\dfrac{23}{100}=0.23

c) A ∩ B =  Total skin samples has both low melanin content and high moisture content =10

P(A ∩ B) =\dfrac{10}{100}=0.10

Using conditional probability formula , P (A|B)=\dfrac{P(A\cap B)}{P(B)}

P (A|B)=\dfrac{0.10}{0.23}=0.434782608696\approx0.435

d)  P (B|A)=\dfrac{P(A\cap B)}{P(A)}

P (B|A)=\dfrac{0.10}{0.40}=0.25

8 0
3 years ago
If a+b=2 find the value of a3+b3+6ab
mars1129 [50]

Answer:

Step-by-step explanation:

Factor the sum of cubes

a³ + b³ = (a+b)(a² - ab +b²)

= 2a² - 2ab + 2b²

a³ + b³ + 6ab = 2a² + 4ab + 2b²

= 2(a² + 2ab +b²)

= 2(a+b)²

= 8

7 0
2 years ago
Choose the answer.
myrzilka [38]
**4/5** is equal to .8, so 4/5 is the answer. to check, multiply .8 x 5 = 4
4 0
2 years ago
Read 2 more answers
Twice the product of the cube of a and the square of b
arlik [135]

For this case we have to rewrite the given expression algebraically:

the cube of a, is represented as: a ^ 3

the square of b, is represented as:b ^ 2

Thus, the product of both expressions is:

(a ^ 3 * b ^ 2)

And twice the product is represented as:

2 (a ^ 3 * b ^ 2)

Answer:

2 (a ^ 3 * b ^ 2)

6 0
3 years ago
Other questions:
  • I REALLY NEED HELP!! WILL MARK BRAINLIEST!
    5·2 answers
  • A friend is building a dog pen with an area of 150 square feet. Each side must be at least 5 feet long.
    13·1 answer
  • This graph shows a proportional relationship between the number of cello players and the number of violin players in a music gro
    14·2 answers
  • The diagram shows FGH, its medians, centroid P, and the lengths of some of the subsegments. Apply the Centroid Theorem to find o
    11·1 answer
  • Can someone verify if this is correct
    5·2 answers
  • (25 + 19) + 15 = (19 + 25) + 15<br><br><br> What property is that equation
    7·2 answers
  • HELP !!!!!!!!!!!!!!!!!!
    10·1 answer
  • 10 points
    6·1 answer
  • Select the inequality that match the situation:
    10·1 answer
  • Which is a perfect square?<br> O 5<br> 0001<br> O<br> 36<br> 44
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!