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13 Apr 2021

Calculate the death rate. If there are 24,000,000 people between the ages of 65 and 74 years, 173,000 of these people die of cardiovascular disease.

What is the death rate from cardiovascular disease for this group of people?

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Priyanshu Patel
Priyanshu PatelLv10
15 Apr 2021
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Related textbook solutions

Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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You are studying the ages of people afflicted with acne. You collected a random sample of 49 people that have acne and recorded their ages. Using this data, you find that the sample mean age is 18.2 years and sample standard deviation is 18.3 years. Assume that the ages are normally distributed.
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You are studying the ages of people afflicted with acne. You collected a random sample of 49 people that have acne and recorded their ages. Using this data, you find that the sample mean age is 18.2 years and sample standard deviation is 18.3 years. Assume that the ages are normally distributed.

To find a 91% confidence interval for the ages of people with acne, what z-value would you need to use?

Calculate the lower boundary of a 91% confidence interval for the ages of people with acne.(Round to two decimal places)

Calculate the upper boundary of a 91% confidence interval for the ages of people with acne.(Round to two decimal places)

 

You are studying the ages of people afflicted with acne. You collected a random sample of 49 people that have acne and recorded their ages. Using this data, you find that the sample mean age is 18.2 years and sample standard deviation is 18.3 years. Assume that the ages are normally distributed.

To find a 91% confidence interval for the ages of people with acne, what z-value would you need to use?

Calculate the lower boundary of a 91% confidence interval for the ages of people with acne.(Round to two decimal places)

Calculate the upper boundary of a 91% confidence interval for the ages of people with acne.(Round to two decimal places)

 

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