Determing confidence interval estimation

Assignment Help Basic Statistics
Reference no: EM13104391

Question: Compute the 99% confidence interval for the population mean based on the sample 62, 68, 61, 64, 65, 62, and 66. Then, change the number from 66 to 16 and calculate the confidence interval. Using the results, describe the affect of an outlier or extreme value on the confidence interval.

Reference no: EM13104391

Questions Cloud

Explain the best strategic planning and implementation : From some organization(s) where you have worked (or someone else has worked), write 2 scenarios from the strategic perspective as follows, Explain the BEST strategic planning and implementation.
Explain history of world civilizations : A famous publishing company, has contacted you about possibility of writing new textbook for first semester History of World Civilizations course, potentially very lucrative undertaking.
Analyzing or rejection of a lot of incoming material : The quality control manager for ENTA Inc. must decide whether to accept (a1), further analyze (a2) or reject (a3) a lot of incoming material. Assume the following payoff table is available.
What is the transverse speed for a point on the string : The function y(x, t) = (25.0 cm) cos(?x - 20?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant when that point has the displacement y = +22.0 cm?
Determing confidence interval estimation : Compute the 99% confidence interval for the population mean based on the sample 62, 68, 61, 64, 65, 62, and 66. Then, change the number from 66 to 16 and calculate the confidence interval.
Estimate the least squares regression line : Determine the least squares regression line using Excel. Determine the MSE for the trend line (in a) and the 3 month moving average (in c.) Which forecasting method is better? Explain.
What is the tangential speed of a wad of chewing gum : A wheel with radius 43.9 cm rotates 4.27 times every second. Find the period of this motion.
Point estimates and confidence intervals : The Warren County Telephone Company claims in its annual report that "the typical customer spends $70 per month on local and long-distance service.
What is the total distance the car travels : A car travels north at 28.9 m/s for 14.3 min. It then travels south at 40.1 m/s for 28.5 min. a) What is the total distance the car travels? b) What is the displacement of the car?

Reviews

Write a Review

 

Basic Statistics Questions & Answers

  Linear programming problem-friendly family

On their farm, the Friendly family grows apples that they harvest each fall and make into three products- apple butter, applesauce, and apple jelly.

  Find the standard deviation and sampling distribution

How large should n be so that the standard deviation of is no more than 0.01 and sampling distribution

  Purpose of transforming raw scores

Discuss the purpose of transforming raw scores into standard scores. Describe what "normal distribution" means. Describe measures of variability and explain how they can help therapist understand assessment data.

  Percentiles of known normal distributions

All standard IQ test scores are normally distributed and are set up so that the mean score is 100. However, the standard deviation differs from test to test.

  Question on rao-blackwell theorem

Find an unbiased estimator of mp(1 - p)/n. Find the optimal estimator using the Rao-Blackwell Theorem.

  Developing a nentry five percent confidence interval

What is a point estimate of the P/E ratio for the population of stocks listed on the New York Stock Exchange? Develop a 95% confidence interval.

  Distribution of amounts purchasing normal distribution

The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50 with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the follo..

  Sample size for finding the population proportion

Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.

  Selecting different blocks from bag

A bag contains five purple ("P") blocks and one yellow ("Y") blocks. Without looking into the bag you reach in, take out a block, return the block to the bag, and then repeat the same process a number of times. Which of the following sequences of ..

  Comparing three treatment conditions

The following data were obtained from an independent measures research study comparing three treatment conditions. Use an ANOVA with alpha=.05 to determine whether there are any significant mean differences among the treatments.

  Estimating the number of households with two cars

A researcher wished to estimate the number of households with two cars. How large a sample is needed in order to be 95% confident that the sample proportion will not differ from the true proportion by more than 4%.

  Appropriate independent and dependent variables

Find the least squares regression line by deciding which are the appropriate independent and dependent variables and calculating the equation of the line. State equation of line.

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