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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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3 years ago
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3 years ago
Sammy counts the number of people in one section of the school auditorium. He counts 18 female students, 16 male students, and 6
Rzqust [24]

Correct Question:

He counts 18 female students, 16 male students, and 6 teachers. There are

720 people in the auditorium. Consider the probability of selecting one person

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B : The probability of selecting a student is 85%.

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Step-by-step explanation:

Option B  and D are correct because

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3 0
3 years ago
See comment for what I need
Roman55 [17]

Answer:

I already sent u the link from there, even tho, they deleted my question, but yh i set the title as well incase u needed it! Good luck

Step-by-step explanation:

4 0
3 years ago
I'm not really good at these types of questions would really appreciate some help.
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Thanks!

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The falling leaves and the draining of the pool signal an end and parallel the end of the illusion and the end of Gatsby's life.

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