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
Snowcat [4.5K]
3 years ago
11

One indicator of physical fitness is a resting pulse rate. Ten men volunteered to test an exercise device advertised on televisi

on by using it three times a week for 20 minutes and ten other similar men did not exercise. Their resting pulse rates (beats per minute) were measured after 6 weeks. Results are summarized below. Researchers want to know if there is evidence that exercise can reduce resting pulse rates.
exercise group mean = 82.40
non-exercise group mean = 85.20
standard error for the difference in the two sample means = 6
1. With the difference in population means defined as "exercise mean minus non-exercise mean" which of the following presents the correct test statistic?
O (82.4 - 85.2) / 6
O (85.2 - 82.4) / 6
O (82.4 - 85.2) / √ (6)
O (85.2 - 82.4) / √ (6)
Mathematics
1 answer:
Arlecino [84]3 years ago
4 0
Yep that is right I totally agree
You might be interested in
Given the formula A = P(1 + )". compute A (rounded to two decimal places) if P = 10,000,7
Flura [38]

Answer:

A = 16010.32

Step-by-step explanation:

Given that,

A=P(1+\dfrac{r}{k})^n

Put P = 10,000, r = 0.08, k = 2 and n = 12 in the above formula to find A.

A=10,000(1+\dfrac{0.08}{2})^{12}\\\\=10,000\times (1.04)^{12}\\\\=16,010.32

So, the value of A is 16010.32. Hence, the correct option is (B).

4 0
2 years ago
The students in a furniture making class make a tabletop shaped like the figure shown. The tabletop has squares cut out of the c
Pie
Do you have a picture to go with this? I can't help without the picture :(
7 0
3 years ago
Benjamin is selecting embellishments for a child’s dresser. He picks a wooden embellishment, a ceramic embellishment, and a meta
dybincka [34]

Answer:

B

Step-by-step explanation:

Here is the complete question :

Benjamin is selecting embellishments for a child’s dresser. There are 9 wooden embellishments, 5 ceramic embellishments, and 8 metal embellishments to choose from, shown in the table below. He picks a wooden embellishment, a ceramic embellishment, and a metal embellishment. What is the probability that he picks one of the clouds, one of the dogs, and one of the stars?

Wooden Embellishments Ceramic Embellishments Metal Embellishments

2 hearts 2 cats 3 stars

3 clouds 3 dogs 5 squares

4 birds

A.1/27

B. 3/40

C. 1/9

D.3/8

7 0
2 years ago
The number of vertices in a prism is twice the number of vertices of one of the bases. How many vertices does one of the bases o
Ira Lisetskai [31]
The answer is 12 vertices. 
3 0
3 years ago
Read 2 more answers
During the time interval 0 Less than or equal to t less than or equal to 4.5, water flows into tank A at rate of a(t) = (2t-5) +
ololo11 [35]

Answer:

Photomath

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Total principal in both accounts​
    12·1 answer
  • Solve for brainliest
    8·1 answer
  • Which value of gg makes 26=7(g-9)+ 12 a true statement?
    7·1 answer
  • Look at the photo<br> answers are<br> radius <br> diameter<br> center<br> circumference
    6·1 answer
  • HURRYY!!! <br> which exponential function is represented by the graph
    6·1 answer
  • Find the measure of angle x in the figure below:
    9·1 answer
  • What is the area of this triangle m2 <br><br> 19 m<br> 22m
    9·1 answer
  • The total number of degrees in the center is 360°. If all five vertex angles meeting at the center are congruent, what is the me
    15·1 answer
  • A metal pipe is 33 3 /4 inches long. If you cut the pipe into pieces that are each 3 3 /4 inches long, how many total pieces wil
    5·1 answer
  • What is the Bill of Rights?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!