Question
In: Statistics and Probability
In the United States in 2007, the proportion of adults age 21-24 who had no medical...
In the United States in 2007, the proportion of adults age 21-24 who had no medical insurance was 28.1%. A survey of 75 recent college graduates in this age range finds that 30 of them are without insurance. Does this support a difference from the nationwide?
• Perform a two-sided significance test in R for a proportion, following the procedure of seven steps in the lecture note (choose a significance level of 0.05).
• Use the related function in R to report the p-value. What’s your conclusion based on the result?
Solutions
orchestra answered 1 year agoRelated Solutions
A professor states that in the United States the proportion of college students who own iPhones...
A professor states that in the United States the proportion of
college students who own iPhones is .66. She then splits the class
into two groups: Group 1 with students whose last name begins with
A-K and Group 2 with students whose last name begins with L-Z. She
then asks each group to count how many in that group own iPhones
and to calculate the group proportion of iPhone ownership. For
Group 1 the proportion is p1 and for Group...
A professor states that in the United States the proportion of college students who own iPhones...
A professor states that in the United States the proportion of
college students who own iPhones is .66. She then splits the class
into two groups: Group 1 with students whose last name begins with
A-K and Group 2 with students whose last name begins with L-Z. She
then asks each group to count how many in that group own iPhones
and to calculate the group proportion of iPhone ownership. For
Group 1 the proportion is p1 and for Group...
A professor states that in the United States the proportion of college students who own iPhones...
A professor states that in the United States the proportion of
college students who own iPhones is .66. She then splits the class
into two groups: Group 1 with students whose last name begins with
A-K and Group 2 with students whose last name begins with L-Z. She
then asks each group to count how many in that group own iPhones
and to calculate the group proportion of iPhone ownership. For
Group 1 the proportion is p1 and for Group...
A professor states that in the United States the proportion of college students who own iPhones...
A professor states that in the United States the proportion of
college students who own iPhones is .66. She then splits the class
into two groups: Group 1 with students whose last name begins with
A-K and Group 2 with students whose last name begins with L-Z. She
then asks each group to count how many in that group own iPhones
and to calculate the group proportion of iPhone ownership. For
Group 1 the proportion is p1 and for Group...
The minimum legal drinking age in the United States is 21. Suppose we conduct a survey...
The minimum legal drinking age in the United States is 21.
Suppose we conduct a survey of students at URI. We collect data on
their age (in months), the number of drinks they consumed in the
last week, number of minutes of exercise in the last week, their
body mass index (BMI), and other characteristics such as education,
race, gender, class year, etc.
Using this observational data, what would be an appropriate
identification strategy if we are interested in estimating...
A senator wishes to estimate the proportion of United States voters who favor abolishing the Electoral...
A senator wishes to estimate the proportion of United States
voters who favor abolishing the Electoral College.How large a
sample is needed in order to be 98% confident that the sample
proportion will not differ from the true proportion by more than
3%?
A senator wishes to estimate the proportion of United States voters who favor abolishing the Electoral...
A senator wishes to estimate the proportion of United States
voters who favor abolishing the Electoral College.How large a
sample is needed in order to be 98% confident that the sample
proportion will not differ from the true proportion by more than
3%?
In 2006 the United States is at full employment. Then, in 2007: a. The real estate...
In 2006 the United States is at full employment. Then, in
2007:
a. The real estate market collapses. Illustrate with a graph the
effect of this event on the aggregate economy. Identify the result
in the unemployment rate, real GDP and the price level.
b. Oil producing countries cut production. Illustrate with a
graph the effect of this event on the aggregate economy. Identify
the result in the unemployment rate, real GDP and the price
level.
Through March 16th of this year, 12% of patients in the United States who had contracted...
Through March 16th of this year, 12% of
patients in the United States who had contracted COVID-19 were
hospitalized (Centers for Disease Control). In Orange
County, Florida, as of April 8, 2020, out of 931 confirmed COVID-19
cases, there were 129 hospitalizations (The Orange County
Register). Use this sample information to conduct a test of
significance to determine whether the rate of hospitalization due
to COVID-19 in Orange County is greater than the rate of
hospitalization in the United States...
Through March 16th of this year, 12% of patients in the United States who had contracted...
Through March 16th of this year, 12% of
patients in the United States who had contracted COVID-19 were
hospitalized (Centers for Disease Control). In Orange
County, Florida, as of April 8, 2020, out of 931 confirmed COVID-19
cases, there were 129 hospitalizations (The Orange County
Register). Use this sample information to conduct a test of
significance to determine whether the rate of hospitalization due
to COVID-19 in Orange County is greater than the rate of
hospitalization in the United States...
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