Answered: q17- The confidence interval gets…

q17- The confidence interval gets _______, if the sample size gets larger Select one: a. less informative b. confused c. tighter (or narrower)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: 1. A study in 2010 performed by called people on the phone asked 2251 US adults the question "Do you…

Q: Use the given confidence interval to find the margin of error and the sample mean. (15.3,23.5)…

A: Given information- We have given the confidence interval is- C.I = (15.3, 23.5) Lower limit = 15.3…

Q: 23a, 23b, and 23c

A: a. Independent and dependent variables: The variable of interest, regarding which, the prediction is…

Q: Use the given confidence interval to find the margin of error and the sample mean. (14.6,21.2) The…

A: Answer - Given confidence interval ( 14.6, 21.2) Find the margin of error and the…

Q: Suppose we wanted to estimate the average amount of sleep (in hours) a college student gets a night.…

A: Confidence interval : Confidence interval is a range of values it contains the true population…

Q: A 95% confidence interval for the proportion of voters who say "they want change" is computed and…

A: From the provided information, Confidence level = 95% Confidence interval for the proportion is…

Q: Q#3, Which of the following statements about confidence intervals are true? A) If we decrease the…

A: Which of the following statements about confidence intervals are true? A) If we decrease the level…

Q: A dietician is conducting a study to see how many pieces of fruit or vegetables American Adults eat…

A: Given, n = 11 and data set is : 7 5 9 6 10 12 10 1 1 6 5 Calculating Mean and Standard…

Q: 1. We are interested in determining if absences from a class affect your overall class grade. The…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: B. (39.431, 46.569) 29. Bob draws a simple random sample from an original population where the…

Q: Use the given confidence interval to find the margin of error and the sample mean. (13.7,20.7)…

A: Given Data Lower limit = 13.7 upper limit = 20.7

Q: A 95% confidence interval for the proportion of voters who say "they want change" is computed and…

A: For the population proportion, the confidence interval can be computed using the formulae: C.I=p⏞±E…

Q: Suppose that the a college wants to have an idea of the average SAT score of the incoming freshman…

A: The confidence level is 0.90, the standard deviation is 310 and margin of error E is 50.

Q: I need help finding R code for analysis. Below are heights for a simple random sample of n = 15…

A: Given that x (27,33,33,34,36,37,39,40,40,41,41,42,44,46,47)

Q: In which of the following situations we can not construct a confidence interval for the population…

A: To construct a confidence interval for the population proportion, we need to make sure the following…

Q: Use the given confidence interval to find the margin of error and the sample mean. (12.3,20.5)…

Q: The figure shows the results of a recent Marist poll asking about President Biden’s approval rating.…

A: *Answer: Given the results of a recent Marist poll asking about President Biden’s approval rating.

Q: Use the given confidence interval to find the margin of error and the sample mean. (13.5,20.7) The…

Q: Kim wants to determine a 80 % confidence interval for the true proportion ? of high school students…

Q: Suppose you are constructing a Cl for a mean using the T-distribution and your sample size is 17.…

A: Degrees of freedom = n-1

Q: The figure to the right shows the results of a survey in which 2500 college graduates from the year…

Q: A confidence interval for (u, -µ2) is (-8, 2). Which o

A: The confidence interval for μ1-μ2 is (-8,2)

Q: A Gallop Poll in 2015 found that 75% of respondents believed in an afterlife, 15% were not sure or…

A: Given Information : A Gallop Poll in 2015 found that 75% of respondents believed in an afterlife,…

Q: Use the given confidence interval to find the margin of error and the sample mean. (15.8,23.6) The…

A: Given :Confidence interval (C.I)=(15.8 , 23.6)

Q: You are interested in finding a 90% confidence interval for the average commute that non-residential…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: The sample mean is. (Type an integer or a decimal.) The margin of error is. (Type an integer or a…

A: Here confidence interval for population mean is (6.37, 10.89)

Q: Goofy Marketing Solutions conducted a survey among 16 randomly selected visitors to the newly opened…

A: The random variable satisfaction score follows normal distribution. We have to construct 95%…

Q: Use the given confidence interval to find the margin of error and the sample mean. (6.23,10.55) The…

A: Solution: From the given information, the confidence interval is (6.23, 10.55).

Q: The figure to the right shows the results of a survey in which 1500 college graduates from the year…

A: Given the, survey of 1500 college graduates. Where 53% graduates feel unemployed. We need to 99%…

Q: Summary statistics are given for independent simple random samples from two populations. Use the…

Q: The figure to the right shows the results of a survey in which 1500 college graduates from the year…

A: For proportion of college students that expect to stay at their first employer for 3 or more years…

Q: 5.82 Carbon Tax. A poll commissioned by Friends of the Earth and conducted by the Mellman Group…

A: We have given that p=72%=0.72. ,q=1-p=1-0.72=0.28 n=6 X~Binomial(n=6,p=0.72) The pmf of Binomial…

Q: Which of the following is the best estimate of the range of a population value given the sample…

A: Confidence interval is known as the probability that a population parameter will lie between a set…

Q: Which of the following is the concept illustrated with the misentered data? OA. The procedure for…

A: The concept that is illustrated with the misentered data must be determined.

Question

q17-

The confidence interval gets _______, if the sample size gets larger

Select one:

less informative

confused

tighter (or narrower)

wider

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

Expert Solution

Step 1

In the statement it is given that sample size gets larger.

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Use the given confidence interval to find the margin of error and the sample mean. (15.3,24.1) The sample mean is (Type an integer or a decimal.) The margin of error is (Type an integer or a decimal.)
All else constant, a 90% confidence interval for u will be wider than a 95% confidence interv O True O False
Use the given confidence interval to find the margin of error and the sample mean. (6.19,8.33) The sample mean is The margin of error is (Type an integer or a decimal.) (Type an integer or a decimal.)
Use the given confidence interval to find the margin of error and the sample mean. (7.14,10.84) The sample mean is The margin of error is ... (Type an integer or a decimal.) (Type an integer or a decimal.)
You are interested in finding a 99% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 12 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 18 20 20 24 5 28 10 13 5 24 11 11 b. With 99% confidence the population mean commute for non-residential college students is between ? and ? miles. c. If many groups of 12 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About ? percent of these confidence intervals will contain the true population mean number of commute miles and about ? percent will not contain the true population mean number of commute miles.
Ezekiel wants to use an interval from a sample based on z-scores to estimate the proportion of seniors in his school who have a smartphone. He takes a MORE of 20 out of the total 100 seniors and finds that 12 of those sampled have a smartphone. What conditions for constructing this confidence interval does Ezekiel's sample satisfy? Choose all the appropriate answers: The data is a random sample from the population of interest The observed scores of successes and failures are large enough Individual observations can be considered independent
Which two of the following could be confidence intervals with the same sample? (0.45, 0.75) (0.4, 0.5) (0.35, 0.45) (0.3, 0.6)
Use the given confidence interval to find the margin of error and the sample mean. (15.3,23.7) The sample mean is . (Type an integer or a decimal.) The margin of error is. (Type an integer or a decimal.)
Use the given confidence interval to find the margin of error and the sample mean. (11.3,21.1) The sample mean is The margin of error is
A developmental psychologist believes that children’s self-esteem scores change with age. She measures N=8 children’s self-esteem in 3rd grade and again in 6th. Evaluate the results of her data using α = .052tail. **Attached Image** a. Show how the 95% confidence interval was calculated. b. State the conclusion in APA format. c. What is Cohen’s d?
first picture is the background information