A student organization wants to get an estimate of the proportion of students who would attend...
A student organization wants to get an estimate of the proportion of students who would attend a Tiny Cowboys concert at Al Lang stadium. They ask you how many students they should include in their sample to get this estimate. They tell you that a similar concert held at another college close by had 24% of all students attend the concert, they would be ok with being 90% confident and want the estimate to be within 6% of the true value. Calculate the sample size. Write a sentence or two to communicate to the student organization how many students they should sample.
Homework Answers
Add Answer to:
A student organization wants to get an estimate of the
proportion of students who would attend...
a)A university planner wants to determine the proportion of spring semester students who will attend summer...
a)A university planner wants to determine the proportion of spring semester students who will attend summer school. Suppose the university would like a 0.90 probability that the sample proportion is within 0.195 or less of the population proportion.What is the smallest sample size to meet the required precision? (There is no estimation for the sample proportion.) (Enter an integer number.) b)A university planner wants to determine the proportion of spring semester students who will attend summer school. She surveys 31 current...
Students who get more sleep get better grades. You want to estimate the hours of sleep...
Students who get more sleep get better grades. You want to estimate the hours of sleep per night that a college student gets. You select 29 students; on average they slept 6.2 hours with a standard deviation of 1.8 hours. The standard error is 0.334. In order to be 90% confident of an estimate of the population mean, what is the critical value? A- 1.640 B- 1.960 C- 1.699 D- 1.701 E- 2.064
(3 pts) In a college student poll, it is of interest to estimate the proportion p...
(3 pts) In a college student poll, it is of interest to estimate the proportion p of students in favor of changing from a quarter-system to a semester-system. How many students should be polled so that we can estimate population proportion to within 0.09 using a 99% confidence interval? A small study has been done, that found a sample proportion of 0.35
Saved What sample size would be needed to estimate the true proportion of students at your...
Saved What sample size would be needed to estimate the true proportion of students at your college (if you are a student) who are wearing backpacks, with 95 percent confidence and an error of +0.04? (Enter your answer as a whole number (no decimals). Use a z- value taken to three decimal places in your calculations.) Sample size
A) A certain region would like to estimate the proportion of voters who intend to participate...
A) A certain region would like to estimate the proportion of voters who intend to participate in upcoming elections. A pilot sample of 25 voters found that 17 of them intended to vote in the election. Determine the additional number of voters that need to be sampled to construct a 95% interval with a margin of error equal to 0.06 to estimate the proportion. The region should sample ____ additional voters. B) Determine the sample size needed to construct a...
Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune...
Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune tellers. Use a 0.04 margin of error, use a confidence level of 98% and use results from a prior poll suggesting that 11% of adults have consulted fortune tellers. A student wants to estimate the mean score of all college students for a particular exam. First use the range rule of thumb to make a rough estimate of the standard deviation of those scores....
2- A randon sample of College students were asked how moch money they spent on books and supplies...
number one has been answered! please help with the rest
2- A randon sample of College students were asked how moch money they spent on books and supplies this senester. Beze are the sumary statistics: a-10 $249, s-$30.construct a 90% confidence interval tor the nean coats for all college students. Assune that the anount spent on books and supplies by college students is nonally distributed. 3- A researchez wants to estinate the mean beights of 8- year- old gizis. It...
can i get help answering these questions please i do not understand how to solve them...
can i get help answering these questions please i do not
understand how to solve them im having trouble please.
Question Hop The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 90% confident that his estimate is within seven percentage points of the true population percentage? Complete...
RRM # 2 (ends at for organization, and they force their ideas to fit it. Along...
RRM # 2 (ends at for organization, and they force their ideas to fit it. Along the way, their perfectly good ideas get mangled or lost). Purple # 2 1. Create a simple outline of the bulleted points. RRM # 3(ends at it doesn't begin to explore how or why something happened.) Purple # 3 2. Does this relate to you? Do you write like this? 3. Predict what will come next. RRM # 4 (ends at opened are, in...
Case Study 1: Should a Computer Grade Your Essays? Would you like your college essays graded...
Case Study 1: Should a Computer Grade Your Essays? Would you like your college essays graded by a computer? Well, you just might find that happening in your next course. In April 2013, EdX, a Harvard/MIT joint venture to develop massively open online courses (MOOCs), launched an essay-scoring program. Using arti ficial intelligence technology, essays and short answers are immediately scored and feedback tendered, allowing students to revise, resubmit, and improve their grade as many times as necessary. The non-profit...
Saved What sample size would be needed to estimate the true proportion of students at your college (if you are a student) who are wearing backpacks, with 95 percent confidence and an error of +0.04? (Enter your answer as a whole number (no decimals). Use a z- value taken to three decimal places in your calculations.) Sample size
number one has been answered! please help with the rest
2- A randon sample of College students were asked how moch money they spent on books and supplies this senester. Beze are the sumary statistics: a-10 $249, s-$30.construct a 90% confidence interval tor the nean coats for all college students. Assune that the anount spent on books and supplies by college students is nonally distributed. 3- A researchez wants to estinate the mean beights of 8- year- old gizis. It...
can i get help answering these questions please i do not
understand how to solve them im having trouble please.
Question Hop The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 90% confident that his estimate is within seven percentage points of the true population percentage? Complete...
RRM # 2 (ends at for organization, and they force their ideas to fit it. Along the way, their perfectly good ideas get mangled or lost). Purple # 2 1. Create a simple outline of the bulleted points. RRM # 3(ends at it doesn't begin to explore how or why something happened.) Purple # 3 2. Does this relate to you? Do you write like this? 3. Predict what will come next. RRM # 4 (ends at opened are, in...
Most questions answered within 3 hours.
-
QUESTION 6
Determine the linear momentum of a 2,800 kg houseboat going 3
m/s.
9,100 kg.m/s...
asked 2 minutes ago -
Draw the Lewis dot structures for the following molecules. None
of the atoms have a formal...
asked 8 minutes ago -
Question 5
What effect would a decrease in
temperature have on pressure, assuming that volume
(T)...
asked 3 minutes ago -
Jor-el throws a ball upward from the top of a 728 foot building
on the planet...
asked 6 minutes ago -
What does it mean when an element is radioactive?
a.
It means the element is changing...
asked 8 minutes ago -
A company deposits $6,000 in a bank at the end of every year for
10 years....
asked 8 minutes ago -
What are some strategies for eliminating service barriers?
By using your knowledge of
behavioral styles, please...
asked 16 minutes ago -
What are the decimal numbers for 159, 150, 200, 113, 225, 87,
106, 81 when converted...
asked 24 minutes ago -
Calculate and plot the number and weight distributions of x-mers
found in a step-growth polymerization for...
asked 44 minutes ago -
The Baily Corporation has developed a specialized software
program that improves inventory control capability. The following...
asked 47 minutes ago -
Problem 5-4A (Part Level Submission) Wolford Department Store is
located in midtown Metropolis. During the past...
asked 48 minutes ago -
Preparation of Benzoic Acid using a Grignard Reagent URGENT
1. During your Grignard formation, a small...
asked 1 hour ago