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topjm [15]
3 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]3 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]3 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:

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How much money did the store make for her sales
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Answer:

49.70

Step-by-step explanation:

commission = total sales revenue  mutliplied by the commission rate.

6 0
2 years ago
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HELPP PLS. what do i put?
Rufina [12.5K]

Answer:

(3, 2)

Step-by-step explanation:

Point B has the x-coordinate 3 and the y-coordinate 2, as can be read of directly from the graph.  Therefore Point B is (3, 2).

7 0
3 years ago
What is the sum of the polynomials? (8x2-9y2-4x)+(x2-3y2-7x)
White raven [17]
The sum of the polynomials (8x²-9y²-4x)+(x²-3y²<span>-7x) is:

 1. You must add the terms whose variables and exponents are the same. 
 2. Let's rewrite the polynomials:
</span>
 (8x²-9y²-4x)+(x²-3y²-7x)
 8x²-9y²-4x+x²-3y²-7x
 (8+1)x²+(-4-7)x+(-9-3)y²

 3. Therefore, the result is:

 9x²-11x-12y²

 3. <span>What is the sum of the polynomials?

 The answer is: </span>9x²-11x-12y²
3 0
3 years ago
Help please !!!!!!!!!!!!!!
DIA [1.3K]

The LCM will be the values that are common to both factors. From the given values the LCM will be 2² * 3² * 5

<h3>Least common multiple</h3>

LCM is the lowest number that can divide all other numbers given in an  expression.

Given the prime factorizations 2² * 3² * 5 and 2*3*5. The LCM will be the values that are common to both factors.

From the given values the LCM will be 2² * 3² * 5

Learn more on LCM here: brainly.com/question/233244

#SPJ1

8 0
2 years ago
Let ​ x² + 15x = 49 .​
Aleks04 [339]
Since the numerical coefficient of the first term is only 1, we determine the number that needs to be added to both sides of the equation by squaring half of the second term. That is,
                                   third term = (15/2)² = 56.25
Thus, the missing terms are,
                          x² + 15x + 56.25 = 49 + 56.25
equal to,
                            x² + 15x + 56.25 = 105.25
5 0
3 years ago
Read 2 more answers
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