According to a recent pol, 29 % of adults in a certain area have high levels...
According to a recent pol, 29 % of adults in a certain area have
high levels of cholesterol. They report that such elevated levels
"could be financially devastating to the regions healthcare system"
and are a major concern to health insurance providers. Assume the
standard deviation from the recent studies is accurate and known.
According to recent studies, cholesterol levels in healthy adults
from the area average about 205 mg/dL, with a standard deviation of
about 25 mg/dL, and are roughly Normally distributed. If the
cholesterol levels of a sample of 40 healthy adults from the region
is taken,
What is the probability that the mean cholesterol level of the
sample will be greater than 217
Group of answer choices
a.0.794
b.0.001
c.0.006
d.0.500
Homework Answers
Let 
be the mean of cholesterol levels of 40 healthy adults from the
region.
The correct answer is c
Add Answer to:
According to a recent pol, 29 % of adults in a certain area have
high levels...
According to a recent poll, 27% of adults in a certain area have high levels of...
According to a recent poll, 27% of adults in a certain area have high levels of cholesterol. They report that such elevated levels "could be financially devastating to the regions healthcare system" and are a major concern to health insurance providers. Assume the standard deviation from the recent studies is accurate and known. According to recent studies, cholesterol levels in healthy adults from the area average about 205mg/dL, with a standard deviation of about 30mg/dL, and are roughly Normally distributed....
According to a recent poll, 25% of adults in a certain area have high levels of...
According to a recent poll, 25% of adults in a certain area have high levels of cholesterol. They report that such elevated levels "could be financially devastating to the regions healthcare system" and are a major concern to health insurance providers. According to recent studies, cholesterol levels in healthy adults from the area average about 210 mg/dL, with a standard deviation of about 30 mg/dL, and are roughly Normally distributed. Assume that the standard deviation of the recent studies is...
According to a recent poll, 29% of adults in a certain area have high levels of...
According to a recent poll, 29% of adults in a certain area have high levels of cholesterol. They report that such elevated levels 'could be financially devastating to the regions healthcare system and are a major concern to health insurance providers. Assume the standard deviation from the recent studies is accurate and known. According to recent studies, cholesterol levels in healthy adults from the area average about 206 mg/dL, with a standard deviation of about 25 mg/dL, and are roughly...
what percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL...
what percent of adults do you expect to have cholesterol
levels between 150 and 160 mg/dL
The cholesterol levels of an adult can be descebed by a normal model with a mean of 181 mg/d and a standard deviation of 21. 130 22 2 b) What percent of adults do you expect to have cholesterol levels over 200 mg/d? 18.41% Round to two decimal places as needed ) c) What percent of adults do you expect to have cholesterol levels...
3. Serum cholesterol levels above 200 mg/dl are considered high. A study is being planned to...
3. Serum cholesterol levels above 200 mg/dl are considered high. A study is being planned to determine if the mean cholesterol level for adult Canadians exceeds 200. If a t-test is to be used with α= 0.05, what sample size is required to detect a mean cholesterol level as high as 218 with power .95? An earlier study estimated the standard deviation of cholesterol levels among Canadian adults to be about 58.2
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2. Calcium levels in healthy adults are normally distributed with mean 9.5 mg/dl per deciliter and...
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According to recent studies, cholesterol levels in healthy adults average about 215 mg/dL with a standard deviation of about 28 mg/dL and are roughly normally distributed.
Suppose we collect a random sample of 39 healthy adults and measure their cholesterol level. What is the standard deviation of the distribution of sample average (sampe size 39)?Note:1- Round any intermediate numbers to 3 decimal places.2- Round your final answer to 3 decimal places. Enter your final answer with 3 decimal places.
According to a recent poll, 29% of adults in a certain area have high levels of cholesterol. They report that such elevated levels 'could be financially devastating to the regions healthcare system and are a major concern to health insurance providers. Assume the standard deviation from the recent studies is accurate and known. According to recent studies, cholesterol levels in healthy adults from the area average about 206 mg/dL, with a standard deviation of about 25 mg/dL, and are roughly...
what percent of adults do you expect to have cholesterol
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The cholesterol levels of an adult can be descebed by a normal model with a mean of 181 mg/d and a standard deviation of 21. 130 22 2 b) What percent of adults do you expect to have cholesterol levels over 200 mg/d? 18.41% Round to two decimal places as needed ) c) What percent of adults do you expect to have cholesterol levels...
3. Serum cholesterol levels above 200 mg/dl are considered high. A study is being planned to determine if the mean cholesterol level for adult Canadians exceeds 200. If a t-test is to be used with α= 0.05, what sample size is required to detect a mean cholesterol level as high as 218 with power .95? An earlier study estimated the standard deviation of cholesterol levels among Canadian adults to be about 58.2
2. Calcium levels in healthy adults are normally distributed with mean 9.5 mg/dl per deciliter and known standard devtion. A physician in a rural community suspects that the mean calcium levels are different for women i this comunity. He collects measurements from 20 healthy women and finds = 9.2 with sample standard deviation s 1.1. (a) (1 point) Describe the parameter of interest to the physician (b) (2 points) State the nl and alternative hypotheses (c)(1 point) Suppose we assume...
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