You are interested in estimating the proportion of students at OSU who plan to study abroad. ...
You are interested in estimating the proportion of students at OSU who plan to study abroad. You construct a 95% confidence interval based on a survey of a random sample of 125 students, and the interval ends up being from 0.109 to 0.243. If you had instead constructed a 99% confidence interval based on the same sample of data, rather than a 95% confidence interval, how would the center of the interval change?
A More information is needed in order to answer this question.
B The center would not change at all.
C The center would get larger.
D The center would get smaller.
Homework Answers
Add Answer to:
You are interested in estimating the proportion of students at
OSU who plan to study abroad. ...
The Dean of engineering is interested in estimating the proportion of incoming students at her university...
The Dean of engineering is interested in estimating the proportion of incoming students at her university that plan to study engineering. During the university’s orientation, the office staff managed to survey 120 students during the lunch break. Of those surveyed, 25 students said they were interested in studying engineering. Compute a 95% confidence interval that estimates the proportion of incoming students that plan to study engineering. Using the information provided, what sample size would be needed for the width of...
You want to estimate the proportion of students at OSU who have ever used an online...
You want to estimate the proportion of students at OSU who have ever used an online dating app. You select a random sample of 140 OSU students and find that 43% have used an online dating app. If you want to construct a 99% confidence interval, what will the margin of error be? Try not to do a lot of rounding along the way until you get to the end of your calculations.
A school administrator is interested in estimating the proportion of students in the district who participate...
A school administrator is interested in estimating the proportion of students in the district who participate in community service activities. From a random sample of 100 students in the district, the administrator will construct a 99 percent confidence interval for the proportion of all district students who participate in community service activities. Which of the following statements must be true? A)The population proportion will be in the confidence interval. b)The probability that the confidence interval will include the population proportion...
You want to estimate the proportion of students at OSU who use Instagram. You select a...
You want to estimate the proportion of students at OSU who use Instagram. You select a random sample of 150 OSU students and find that 47% use Instagram. If you want to construct a 95% confidence interval, what will the margin of error be? As you calculate this, attempt to round along the way to three decimal places as you are engaging in your calculations in order to make the computations easier. Choose the answer option that is closest to...
A researcher is interested in estimating the mean cholesterol level in men. Based on a simple...
A researcher is interested in estimating the mean cholesterol level in men. Based on a simple random sample of 54 men, the 95% confidence interval for the population mean μ was 189.9 < μ < 210.1 A. If 100 different samples of size 54 are selected, and based on each sample, a confidence interval was constructed, exactly 95 of these confidence intervals would contain the true value of μ. B. If many different samples of size 54 are selected and,...
A lecturer is interested in estimating the proportion of students who fail quantitative methods exams. In...
A lecturer is interested in estimating the proportion of students who fail quantitative methods exams. In a random sample of 120 students who sat for a quantitative methods exam in a certain year 24 failed. (a) Compute a 90% confidence interval for the proportion of students who fail quantitative methods. 2 (b) Is there sufficient evidence to indicate that the proportion of students who fail quantitative methods is higher than 0.15? Test at the 5% level of significance. (c) Can...
A business student is interested in estimating the 95% confidence interval for the proportion of students...
A business student is interested in estimating the 95% confidence interval for the proportion of students who bring laptops to campus. He wishes a precise estimate and is willing to draw a large sample that will keep the sample proportion within six percentage points of the population proportion. What is the minimum sample size required by this student, given that no prior estimate of the population proportion is available? Use Table 1. (Round intermediate calculations to 4 decimal places and...
Question 2. (10 marks) A manager is interested in estimating a population proportion. A sample of...
Question 2. (10 marks) A manager is interested in estimating a population proportion. A sample of size n = 100 yields 42 successes. Based on these sample data, compute a 99% confidence interval estimate for the true population proportion.
9. Some teachers and students are interested in estimating the proportion p of infected geese with...
9. Some teachers and students are interested in estimating the proportion p of infected geese with a certain virus. Determine the sample size n such that the margin of error for the estimate of p does not exceed € = 0.03 with 95% confidence. A) 1068 B) 1067 C) 510 D) 511 E) 208
The President of UTA is interested in estimating the proportion of Statistics students who drop BUSA...
The President of UTA is interested in estimating the proportion of Statistics students who drop BUSA 3321 this semester with an UPPER ONE-TAILED 100*(1-α)% confidence interval (α is shown on right). This semester there were n students enrolled in 3321 (shown on right) and Xo of those students dropped (shown on right). Calculate the UPPER ONE-TAILED confidence limit for the true proportion who drop 3321. Round all Z scores off to 2 decimals. α = 0.05 n = 110 Xo...
Question 2. (10 marks) A manager is interested in estimating a population proportion. A sample of size n = 100 yields 42 successes. Based on these sample data, compute a 99% confidence interval estimate for the true population proportion.
9. Some teachers and students are interested in estimating the proportion p of infected geese with a certain virus. Determine the sample size n such that the margin of error for the estimate of p does not exceed € = 0.03 with 95% confidence. A) 1068 B) 1067 C) 510 D) 511 E) 208
Most questions answered within 3 hours.
-
Suppose N packets are sent,
and each packet arrives at rate of L/2R to a link....
asked 14 minutes ago -
17. Show the steps involved in reduction of the ketone in fatty
acid synthesis. Which cofactor...
asked 15 minutes ago -
5.61 g of octane, C8H18, reacts with excess oxygen in a bomb
calorimeter. The heat capacity...
asked 19 minutes ago -
The velocity field of a flow is given by V = (2+1) x
y2 i +...
asked 28 minutes ago -
(EPS with
Convertible Bonds) On June 1, 2012, Bluhm Company and
Amanar Company merged to form...
asked 25 minutes ago -
2. Discuss why the study exemplifies one that agrees with The
American Psychological Association’s (APA) Ethical...
asked 29 minutes ago -
Without considering the following capital gains and losses,
Charlene, who is single, has a taxable income...
asked 37 minutes ago -
1a. The __________ functional group often triggers our sense of
smell.
1b. The geometry around a...
asked 50 minutes ago -
A uniform plank of length 2.00 m and mass 34.0 kg is supported
by three ropes,...
asked 51 minutes ago -
Suppose a floor on a hospital has 12 physicians at any given
time. You are brought...
asked 1 hour ago -
Compartmentalization
in eukaryotic cells facilitates chemical reactions happening faster
due to... Select all
Substrates needed for...
asked 51 minutes ago -
The deltaH for the solution process when solid sodium
hydroxide dissolves in water is 44.4 kJ/mol....
asked 54 minutes ago