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
postnew [5]
3 years ago
14

A researcher claims that a post-lunch nap decreases the amount of time it takes to run 20 meters. Ten subjects are randomly sele

cted. The data below list the amounts of time (in seconds) it took the ten subjects to run 20 meters without and with a post-lunch nap. In each data vector, the data are presented in order by subject.
Without a nap: 4.07, 3.94, 3.92, 3.97, 3.92, 3.96, 4.07, 3.93, 3.99, 4.02
With a nap: 3.93, 3.87, 3.85, 3.92, 3.90, 3.85, 3.92, 3.80, 3.89, 3.89

Required:
a. Identify the claim and state.
b. What is the​ claim?

1. A night with only 4 hours of sleep decreases the amount of time it takes males to sprint 20 meters.
2. A night with only 4 hours of sleep increases the amount of time it takes males to sprint 20 meters.
3. A​ post-lunch nap increases the amount of time it takes males to sprint 20 meters.
4. A​ post-lunch nap decreases the amount of time it takes males to sprint 20 meters.
Mathematics
1 answer:
MakcuM [25]3 years ago
5 0

Answer:

4. A​ post-lunch nap decreases the amount of time it takes males to sprint 20 meters.

Step-by-step explanation:

This question wants us to state the claim and the hypothesis.

This researchers claim can be found in the first sentence of this question.

Claim: post lunch nap decreases the time it takes to run for 20 meters.

The correct answer option for the claim is the 4th answer option. And it means that sleeping after lunch reduces the time it takes males to run in a 20m race.

B. Hypothesis

H0: Ud <= 0

H1: Ud > 0

d = is the race time without a nap - race time with a nap

You might be interested in
First five common multiples of 7and 20
gulaghasi [49]
The first 5 Multiples of 7<span> are 35, 70, 105, 140, 175
</span>The first 5<span> Multiples of </span>20<span> are: </span>20<span>, 40, 60, 80, 100
</span>
4 0
3 years ago
GIVING BRAINLIEST PLZZ HELP ASAP
stealth61 [152]

Answer:

D

Step-by-step explanation:

x and y go up at a constant rate (or you can say it has a CROC or constant rate of chacge) y going up 5 for every one x

with our equation being y = 5x + 5

hope this helps <3

7 0
3 years ago
Read 2 more answers
What is the difference of polynomials (8r6s3-9r5s4+3r4s5)-(2r4s-5r6-4r5s4)
Alinara [238K]
If you would like to solve <span>(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4), you can do this using the following steps:

</span>(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4) = 8r^6s^3 – 9r^5s^4 + 3r^4s^5 – 2r^4s^5 + 5r^3s^6 + 4r^5s^4 = 8r^6s^3 – 5r^5s^4 + r^4s^5<span> + 5r^3s^6
</span>
The correct result would be 8r^6s^3 – 5r^5s^4 + r^4s^5<span> + 5r^3s^6.</span>
7 0
3 years ago
14α - (2a + 9) = 3 (12a - 18)
Leona [35]

Answer:

a = 2 5/8

Step-by-step explanation:

14a - (2a + 9) = 3 (12a - 18)

14a - 2a + 9 = 36a - 54

12a + 9 = 36a - 54

12a - 36a = -54 - 9

-24a = -63

a = -63/-24

a = 21/8

a = 2 5/8

3 0
3 years ago
Expertsss/aceee plzzz helpppp quickkklyyyy
Solnce55 [7]

1+5

2+4

3+3

4+2

5+1


 5 ways

6*6 = 36

 so 5/36

5 0
3 years ago
Other questions:
  • Please answer this correctly
    7·1 answer
  • A computer company uses the function f(h) = 50h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Fin
    6·1 answer
  • Where is this trying to show?
    13·2 answers
  • ∆ABC ~ ∆WXY. What is the value of x? (show work)
    15·1 answer
  • Solve this question 4-6n=8(n+7) do the distribute property
    14·1 answer
  • Solve 4x − 2(x + 1) = 3x + 10. (5 points)
    11·1 answer
  • Hello please help i’ll give brainliest
    13·2 answers
  • A quality control expert found 12 defective cell phones in a shipment of 75 cell phones, based on these results how many cell ph
    5·1 answer
  • Y = 4 + 6x<br> Siope-interce<br> What linear equation form is this equation written in?
    8·1 answer
  • Please help no links I WILL GIVE YOU A BRAINLIST
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!