Question

In: Statistics and Probability

Suppose you are interested in knowing the average cholesterol level of all women between the ages...

Suppose you are interested in knowing the average cholesterol level of all women between the ages of 21 and 30 who live in College Station. Everyone in a class (100 students) takes a random sample of 50 females in the College Station area between the ages of 21 and 30. Each student calculates the average cholesterol in their sample. Jenna is one of the students in this class and she makes a histogram of the 50 cholesterol levels in her sample. What kind of distribution would be displayed in Jenna's histogram?

A. Population Distribution

b.

Sampling Distribution

c.

Data Distribution

d.

More than one of the above

e.

None of the above

Solutions

Expert Solution

Jenna's histogram: Sampling distribution [Option(b)]

The different distributions in this example:

>> Population distribution: Suppose you are interested in knowing the average cholesterol level of all women between the ages of 21 and 30 who live in College Station.

>> Data distribution: Everyone in a class (100 students) takes a random sample of 50 females in the College Station area between the ages of 21 and 30. Each student calculates the average cholesterol in their sample.

>> Sampling distribution: Jenna is one of the students in this class and she makes a histogram of the 50 cholesterol levels in her sample.


Related Solutions

Suppose we are interested in knowing the effect of average number of cigarettes smoked by women...
Suppose we are interested in knowing the effect of average number of cigarettes smoked by women during pregnancy on infant birth weight ( in ounces). Suppose OLS regression estimates for the intercept and the slope coefficient are given as 119.77 and -.514 respectively. Interpret  and
A report states that the total cholesterol level of children between the ages of 2 and...
A report states that the total cholesterol level of children between the ages of 2 and 6 years is approximately normally distributed with a mean of 192 mg/dL (milligrams per deciliter) and a standard deviation of 27 mg/dL. Please answer all the questions. a) What is the probability that one randomly selected child between the ages of 2 and 6 years has a total cholesterol level between 150 mg/dL and 200 mg/dL? b) What is the probability that of 7...
Suppose that you are examining the difference in ages between brides and grooms. You are interested...
Suppose that you are examining the difference in ages between brides and grooms. You are interested in conducting a significance test to examine to address the theory that the bride is younger than the groom in more than half of all marriages. A sample of 100 couples were observed, for which 67 had a bride younger than the groom. whats is the parameter? . Step 2: The null hypothesis and alternative hypothesis? Step 5: whats the  p-value is:
Suppose that you are examining the difference in ages between brides and grooms. You are interested...
Suppose that you are examining the difference in ages between brides and grooms. You are interested in conducting a significance test to examine to address the theory that the bride is younger than the groom in more than half of all marriages. A sample of 100 couples were observed, for which 67 had a bride younger than the groom. whats is the parameter? . Step 2: The null hypothesis and alternative hypothesis? Step 5: whats the  p-value is:
A. As a health policy expert, you are interested in knowing whether men and women in...
A. As a health policy expert, you are interested in knowing whether men and women in the United States differ in the frequency they visit doctors when sick. So you conduct a survey of 134 people and ask them how often they visit a doctor when they are sick.  The results from this sample are as follows: Frequency visit doctor Sex Always Sometimes Never Total Men 13 41 27 81 Women 24 19 10 53 Total 37 60 37 134 Perform...
Discussion 1) Which is more important, knowing blood type or knowing cholesterol level? 2) What is...
Discussion 1) Which is more important, knowing blood type or knowing cholesterol level? 2) What is the difference between blood chemistry and blood serum? 3) How does diet affect the course of diabetes mellitus and coronary heart disease?
DISCUSSION 1) Which is more important, knowing blood type or knowing cholesterol level? 2) What is...
DISCUSSION 1) Which is more important, knowing blood type or knowing cholesterol level? 2) What is the difference between blood chemistry and blood serum? 3) How does diet affect the course of diabetes mellitus and coronary heart disease?
A) A researcher is interested in knowing the level of job satisfaction among employees in a...
A) A researcher is interested in knowing the level of job satisfaction among employees in a large company. He measures job satisfaction on a 5-point scale where 1=” Extremely dissatisfied” and 5 = “Extremely satisfied”. What is the matching description of the variable of interest in this study? Group of answer choices a. Quantitative / Discrete b. Quantitative / Continuous c. Categorical / Ordinal d. Categorical / Nominal B) What is the most suitable measure of centre for a skewed...
Marketing companies are interested in knowing the population percent of women who make the majority of...
Marketing companies are interested in knowing the population percent of women who make the majority of household purchasing decisions. a) When designing a study to determine this population proportion, what is the minimum number you would need to survey to be 90% confident that the population proportion is estimated to within 0.05? (Round your answer up to the nearest whole number.) b) Suppose a marketing company did do a survey. They randomly surveyed 200 households and found that in 120...
Suppose a researcher, interested in obtaining an estimate of the average level of some enzyme in...
Suppose a researcher, interested in obtaining an estimate of the average level of some enzyme in a certain human population, takes a sample of 36 individuals, determines the level of the enzyme in each, and computes a sample mean of 22. Suppose further it is known that the variable of interest is approximately normally distributed with standard deviation of 7. Give a 94% confidence interval of population mean. Suppose we find that, the average engine size in our sample of...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT