A college has 25000 students. To estimate the percentage of commuting students, a simple random sample...
A college has 25000 students. To estimate the percentage of commuting students, a simple random sample of 900 students were selected for a survey. Of those surveyed, 734 students were commuting. The percentage of commuting students will be around ________, give or take______ or so. (Round both answers to the nearest percent.) Note that unlike the previous three problems, this problem uses the bootstrap method. The demographics are known ahead of time in the previous three problems. In this problem, a survey is used to estimate the demographics. (See pages 378-379.)
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A college has 25000 students. To estimate the percentage of
commuting students, a simple random sample...
A college has 25000 students. Based on student personal information data, approximately 45 percent are Democrats....
A college has 25000 students. Based on student personal information data, approximately 45 percent are Democrats. A simple random sample of 900 households were selected for a survey. The percentage of Democrats in the sample will be around 45 and 1.65 give or take or so. Estimate the chance that between 42.45 percent and 47.55 percent of the students in the sample are Democrats _____ Please show work. Thank you.
In a study of government financial aid for college students, becomes necessary to estimate the percentage...
In a study of government financial aid for college students, becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.02 margin of error and use a confidence level of 90%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. (Round up to the nearest integer.) b. Assume prior studies...
In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less.
In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.05 margin of error and use a confidence level of 90%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n= (Round up to the nearest integer.) b. Assume prior studies...
A simple random sample of 40 college students was surveyed. The number of participants in given...
A simple random sample of 40 college students was surveyed. The number of participants in given age ranges were recorded in the table below. Complete the table, computing the class midpoints, relative frequencies, cumulative frequencies and the cumulative relative frequencies for each class. Express answers as decimals rounded to 2 decimal places. Then use the table to answer the following questions. Ages Class Midpoint Frequency Rel. Freq. Cumulative Freq. Cumulative Rel. Freq 15-24 20 25-34 16 35-44 8 45-54 4...
Alcohol abuse has been described by college presidents as the number one problem on campus and...
Alcohol abuse has been described by college presidents as the number one problem on campus and is an important cause of death in young adults. A survey of 17,096 students in U.S. four-year colleges collected information on drinking behavior and alcohol-related problems. The researchers defined “frequent binge-drinking” as having five or more drinks in a row three or more times in the past two weeks. According to their definition 3,314 students were classified as frequent5 binge-drinkers. Construct a 901% confidence...
conducted to determine success rates of students enrolled in the Statistics courses offered at South Plains College for the fall semester of 2015. A random sample of 14 students was taken, and...
conducted to determine success rates of students enrolled in the Statistics courses offered at South Plains College for the fall semester of 2015. A random sample of 14 students was taken, and we recorded each student's age, final average, gender, # hours worked per week, race, and t attended this semester). Use the results from the following table to answer all parts of #2. he attendance record (# of classes not Age 20 18 19 Final Average Gender # Hrs...
In a study of government financial aid for college students, it becomes necessary to estimate the...
In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.02 margin of error and use a confidence level of 99%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n (Round up to the nearest integer.) b. Assume...
The price to earnings ratio (P/E) is an important tool in financial work. A random sample...
The price to earnings ratio (P/E) is an important tool in financial work. A random sample of 14 large U.S. banks (J. P. Morgan, Bank of America, and others) gave the following P/E ratios.† 24 16 22 14 12 13 17 22 15 19 23 13 11 18 The sample mean is x ≈ 17.1. Generally speaking, a low P/E ratio indicates a "value" or bargain stock. Suppose a recent copy of a magazine indicated that the P/E ratio of...
Budgeting for an Academic Department at a State University: Can You Believe the Numbers? INTRODUCTION You...
Budgeting for an Academic Department at a State University: Can You Believe the Numbers? INTRODUCTION You are the senior accounting faculty member in the business school and your dean, Dean Weller, is asking for help. She is very discouraged after a midyear budget meeting with the Vice President of Finance. The college's Department of Social Work has a large budget deficit, and because of this the VP is inclined towards closing the department entirely or closing its bachelor's program. The...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
In a study of government financial aid for college students, becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.02 margin of error and use a confidence level of 90%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. (Round up to the nearest integer.) b. Assume prior studies...
conducted to determine success rates of students enrolled in the Statistics courses offered at South Plains College for the fall semester of 2015. A random sample of 14 students was taken, and we recorded each student's age, final average, gender, # hours worked per week, race, and t attended this semester). Use the results from the following table to answer all parts of #2. he attendance record (# of classes not Age 20 18 19 Final Average Gender # Hrs...
In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.02 margin of error and use a confidence level of 99%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n (Round up to the nearest integer.) b. Assume...
Budgeting for an Academic Department at a State University: Can You Believe the Numbers? INTRODUCTION You are the senior accounting faculty member in the business school and your dean, Dean Weller, is asking for help. She is very discouraged after a midyear budget meeting with the Vice President of Finance. The college's Department of Social Work has a large budget deficit, and because of this the VP is inclined towards closing the department entirely or closing its bachelor's program. The...
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