Question
In: Statistics and Probability
2. The latest available data showed health expenditures were $8086 per person in the United States...
2. The latest available data showed health expenditures were $8086 per person in the United States or 17.6% of gross domestic product (Centers for Medicare & Medicaid Services website, April 1, 2012). Use $8086 as the population mean and suppose a survey research firm will take a sample of 100 people to investigate the nature of their health expenditures. Assume the population standard deviation is $2500. a) Identify the sampling distribution of the mean amount of health care expenditures for a sample of 100 people. (1.5 marks) b) What is the probability the sample mean will be within ±$200 of the population mean? (1 mark) c) What is the probability the sample mean will be greater than $9000? If the survey research firm reports a sample mean greater than $9000, would you question whether the firm followed correct sampling procedures? Why or why not? (0.5 + 0.5 mark).
Solutions
orchestra answered 1 year agoRelated Solutions
Suppose data made available through a health system tracker showed health expenditures were $10,348 per person...
Suppose data made available through a health system tracker
showed health expenditures were $10,348 per person in the United
States. Use $10,348 as the population mean and suppose a survey
research firm will take a sample of 100 people to investigate the
nature of their health expenditures. Assume the population standard
deviation is $2,500.
What is the probability the sample mean will be within ±$150 of
the population mean? (Round your answer to four decimal
places.)
The mean income per person in the United States is $43,500, and the distribution of incomes...
The mean income per person in the United States is $43,500, and
the distribution of incomes follows a normal distribution. A random
sample of 14 residents of Wilmington, Delaware, had a mean of
$50,500 with a standard deviation of $11,400. At the 0.010 level of
significance, is that enough evidence to conclude that residents of
Wilmington, Delaware, have more income than the national average?
State the null hypothesis and the alternate hypothesis. State the
decision rule for 0.010 significance level....
The mean income per person in the United States is $45,000, and the distribution of incomes...
The mean income per person in the United States is $45,000, and
the distribution of incomes follows a normal distribution. A random
sample of 17 residents of Wilmington, Delaware, had a mean of
$55,000 with a standard deviation of $8,500. At the 0.100 level of
significance, is that enough evidence to conclude that residents of
Wilmington, Delaware, have more income than the national average?
State the null hypothesis and the alternate hypothesis. State the
decision rule for 0.100 significance level....
In the United States the SEC provides deposit insurance for $250,000 per person per bank.true or...
In the United States the SEC provides deposit insurance for
$250,000 per person per bank.true or false
Discuss the current government health care expenditures in the United States. In your assignment, argue whether...
Discuss the current government health care expenditures in the
United States. In your assignment, argue whether or not you believe
that the government can continue to spend at the current level.
Support your position.
Discuss the current government health care expenditures in the United States. In your assignment, argue whether...
Discuss the current government health care expenditures in the
United States. In your assignment, argue whether or not you believe
that the government can continue to spend at the current level.
Support your position.
The annual per capita (average per person) chewing gum consumption in the United States is 200...
The annual per capita (average per person) chewing gum
consumption in the United States is 200 pieces. Suppose that the
standard deviation of per capita consumption of chewing gum is 145
pieces per year.
(a) Find the probability that the average annual chewing gum
consumption of 84 randomly selected Americans is more than 220
pieces.
(b) Find the probability that the average annual chewing gum
consumption of 84 randomly selected Americans is within 100 pieces
of the population mean.
(c)...
per capita health spending in the united states a) is comparable to that in most other...
per capita health spending in the united states
a) is comparable to that in most other industrialized
nations
b) is the highest than that of all the other industrialized
nations
c) is lower than that of most other industrialized natins
d) cannot be measured, too much fluctuation
The federal program known as aid to dependent children
a) was part of the 1935 social security act
b provided federal assistance directly to widows and their
children
c) was the result of...
The mean number of eggs per person eaten in the United States is 234. Do college...
The mean number of eggs per person eaten in the United States is
234. Do college students eat more eggs than the average American?
The 65 college students surveyed averaged 248 eggs per person and
their standard deviation was 92.4. What can be concluded at the α =
0.01 level of significance? For this study, we should use The null
and alternative hypotheses would be: H 0 : H 1 : The test statistic
= (please show your answer to...
Discuss Mental Health in United States
Discuss Mental Health in United States
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