Read and analyze each item carefully. Choose the letter that corresponds to youranswer and write it in your notebook.1. How is the expected length of a confidence interval related to the margin of error?A. The expected length is half the margin of error.B. The expected length is twice the margin of error.C. The expected length is equal to the margin of error.D. The expected length is two more than the margin of error.Refer to the problem below to answer item numbers 2 to 5.The standard deviation of the temperature of all the mall goers from a certaincity on a Tuesday morning is 0.16°C. How many of them must be chosen to get anaccurate estimate of the mean temperature within 0.015 at 99% confidence level?k. What does 0.16 refer to?A. population meanB. population standard deviation3. To which quantity does 0.015 refer?A. length of the intervalB. mean4. What needs to be determined in the above problem?A. margin of errorB. population mean5. Which of the following is the correct answer to the problem?A. 437C. sample meanD. sample standard deviationC. margin of errorD. standard deviationC. length of intervalD. sample sizeВ. 438С. 757D. 758

here use basic of confidence interval

Answered: 1. How is the expected length of a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

True or False Q: If a 95% confidence interval for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1.
A random sample from a population of adults consists of 67 men and 43 women. (a) Give a 95% confidence interval for the proportion of men in the population. (b) Interpret that confidence interval.
When computing a confidence interval, the size of the error term depends on what?
2. The margin of error is twice the length of a confidence interval. True False
2. What do Confidence intervals tell us? 3. How can confidence intervals be used in real life?
In an article in the Journal of Marketing, Bayus studied the differences between "early replacement buyers" and "late replacement buyers" in making consumer durable good replacement purchases. Early replacement buyers are consumers who replace a product during the early part of its lifetime, while late replacement buyers make replacement purchases late in the product's lifetime. In particular, Bayus studied automobile replacement purchases. Consumers who traded in cars with ages of zero to three years and mileages of no more than 35,000 miles were classified as early replacement buyers. Consumers who traded in cars with ages of seven or more years and mileages of more than 73,000 miles were classified as late replacement buyers. Bayus compared the two groups of buyers with respect to demographic variables such as income, education, age, and so forth. He also compared the two groups with respect to the amount of search activity in the replacement purchase process. Variables compared…
What happens to the interval width as confidence level increases? Why?
What will happen to the precision of a confidence interval if the variability of a sample gets reduced, all other things equal?
What effect does increasing the sample size have on the length of a Confidence Interval (CI)? Specifically, what happens to the distance between the Left-Hand End Point and the Right-Hand End Point of the CI if everything else remains the same? EXPLAIN YOUR ANSWER
State the assumptions for computing a confidence interval on the difference between means?
explain the logic behind why confidence intervals with higher confidence levels are wider than others?
A flower shop owner wants to estimate the average retail value of the best-selling flower in his inventory. A random sample of 10 flowers indicates an average value of 15 pesos and a standard deviation of 3.5 pesos. What are the point estimate and the 99% confidence interval in the average value of the flower? What is the confidence interval estimate of the problem? a. (11.40 , 18.60) b. (7.29 , 12.71) c. (11.68 , 18.32) d. (7.06 , 12.94)

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS