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IceJOKER [234]
1 year ago
5

A group of 26 canadians were randomly selected among a local group of fitness enthusiasts to participate in an innovative fitnes

s program to lower their heart rate. After four months the group was evaluated to identify if their average heart rate was lower than the national average of 72 beats/minute. The mean heart rate for the group was 68. 5 bpm with a standard deviation of 6 bpm. Is there sufficient evidence to believe that the average heart rate for canadians who participate in this innovative fitness program is lower than the national average heart rate? what statistical procedure should be used to answer this research question?.
Mathematics
1 answer:
Lady_Fox [76]1 year ago
8 0

The appropriate statistical procedure to use here is a two-tailed hypothesis test for the population mean

What is standard deviation?

  • The term "standard deviation" (or "σ") refers to a measurement of the data's dispersion from the mean.
  • A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.

Explanation:

  • Since we are interested in comparing here the mean heart rate for Canadians who participated in this fitness program, to that of the national average,
  • We have to have to conduct a hypothesis test here for sample mean
  • Since we are not trying to find the true population mean based on the sample mean, we do not have to construct a confidence interval
  • As the sample size, n = 26 < 30,therefore we will use the t-test instead of the z-test.

Therefore,  A one-sample t-test for means' is the correct choice.

To know more about sample-test check below link:

brainly.com/question/24466382

#SPJ4

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What will be the new position of the given point (0,6) after a translation<br> of (x+3, y-6)?
Maurinko [17]

Answer:

(3,0)

Step-by-step explanation:

0(x)+3=3

6(y)-6=0

4 0
4 years ago
Read 2 more answers
Answer BOTH questions
Slav-nsk [51]

Answer:

6. C) 2

7. C) 5

Step-by-step explanation:

6. 22 cupcakes

4 children

5 for each child which is 20

22- 20 = 2

7.

25/5 = 5

6 0
3 years ago
I need helpppppp i have no idea what im looking at lol
Fed [463]

The correct answer is option B which is  Cot\theta=\dfrac{24}{7}.

<h3>What is trigonometry?</h3>

Trigonometry is the branch of mathematics which set up a relationship between the sides and angle of the right-angle triangles.

Given that:-

Sec\theta=\dfrac{25}{24}

The value of cot theta will be calculated as:-

We know that sec theta is the ratio of hypotenuse and base and cot theta is the ratio of base and perpendicular so we will find the value of perpendicular by applying the Pythagorean theorem.

H² = P²  +  B²
P² = H²  -  B²

P²  =  25²  -  24 ²  = 49

P  = √49 =  7

Now the value of cot theta will be calculated as:-

Cot\theta =\dfrac{B}{P}=\dfrac{24}{7}

Therefore the correct answer is option B which is  Cot\theta=\dfrac{24}{7}.

To know more about Trigonometry follow

brainly.com/question/24349828

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5 0
3 years ago
ANSWER ASAP
Fudgin [204]
91,000 I'm Guessing Since If You Divide 364138 By 4 You Will Get 91,032 But Then It Says Round To The Nearest Thousand So Then My Best Answer Would be (B) 91,000

Hope I Helped And Got It Right :/
6 0
3 years ago
PLEASE HELP!!
Nesterboy [21]
First, we need to find the volume of the pan.  We do this by multiplying the length, width, and height together.  This is:

volume=10*12 \frac{1}{2} *2=250 in^{3}

Next, we find the volume of the pieces of bread.  We do this the same way.

volume=2*2 \frac{1}{2}*2=10in^{3}

Finally, we figure out how many times 10 can go into 250.  We do this by dividing 250 by 10.

250/10=25, so Arla can cut 25 pieces of bread.
6 0
3 years ago
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