Width of a confidence interval

Assignment Help Basic Statistics
Reference no: EM1316687

The width of a confidence interval will be: 

A. Narrower for 99% confidence than 95% confidence

B. Wider for a sample size of 100 than for a sample size of 50

C. Narrower for 90% confidence than 95% confidence

D. Wider when the sample standard deviation (s) is small than when s is large

Reference no: EM1316687

Questions Cloud

Determining the probability in class using table : Determine the probability in big class that both sections are covered? Only one section? Neither section?  Determine the expected number of sections covered?
Probability using the z - score : Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 8 hours. A random sample of four students was taken in order to estimate the mean study time for the population of all students.
Developing a pseudocode and the flowchart : Develop a flowchart and write down the psuedocode for the following: A program which prints every number from 1 through 10. A program which prints every number from 1 through 10 along with its square and cube.
Apply the quadratic formula to solve the equation : Apply the quadratic formula to solve the equation.
Width of a confidence interval : The width of a confidence interval will be:
Finding various costs of wendel company : Suppose the company wants to set its price equal to full cost plus 30 percent. To determine cost, the company must estimate the number of units it will produce and sell in a year.
Calculating the expected number of days : Calculate the expected number of days it takes to get the order and standard deviation.
Explain analysis of data through capm model : Explain Analysis of Data through CAPM Model and The period should include exactly 5 years of data
Level of confidence and sample size : When the level of confidence and sample size remain the same, a confidence interval for a population proportion π will be __________ when p(1-p) is larger than when p(1-p)   is smaller.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability that gas tank-s capacity is above the range

Determine the probability that gas tank's capacity is above 15.25 gallons?

  Conditional values for the different alternatives

A concessionaire for the local ballpark has made a table of conditional values for the different alternatives  also states of nature

  Recognizing independent variable and dependent variable

Recognize independent variable and dependent variable for this experiment. Think in your head what influences what? Or, what causes what? Cause is independent variable.

  Compute the probability values using discrete distribution

What is the probability that a respondent said neither the Big Ten nor the Pac-10 would have a team in the Rose Bowl?

  Elucidate the mean and standard deviation

Illustrate what can we say about the probability distribution. Is it approximately normal, elucidate the mean and standard deviation.

  Hypothesis testing for difference between matched pairs

Using the following data on 15 workers, construct an exact 95% confidence interval for µ.

  Sampling design for study

Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents

  Probability value-occurring of event

A probability value of .25 means that an event will occur:

  Setting up null hypothesis for associated f test

Set up null hypothesis for associated F test.

  Hypothesis testing-matched pairs

The standard deviation of the differences d for the paired sample data s d  = ____________

  Frequency of committing error with different alpha level

In 1,000 samples, assuming that  H 0 is true, how many times would you expect to commit Type I error if:

  Normally distributed population

Suppose that an IQ test was given to a large group of persons, the scores are assumed to be from a normally distributed population, that mean = 100 and s (standard deviation) = 15.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd