What is the standard error of the mean

Assignment Help Basic Statistics
Reference no: EM13131392

A nation-wide (U.S.) donut chain determined that its stores sells an average of 256 donuts per day with a standard deviation of 36 donuts. If a sample of 16 stores results in a sample average of 249 donuts what is the standard error of the mean?

Reference no: EM13131392

Questions Cloud

Explain what is meant by the test data approach : Explain what is meant by the test data approach. What are the major difficulties with using this approach? Define parallel simulation with audit software and provide an example of how it can be used to test a client's payroll system.
Explain balance sheet presentation of the fair value : Explain balance sheet presentation of the fair value adjustment for Perry’s short-term investment.
Grammar and flow of paper to best answer : grammar and flow of paper to best answer the health policy assignment. I am going to upload the directions. Also if possible some text can be googled to add the best reference as well as check the latest statistics to replace some old ones. Th paper ..
What major factors permitted the embezzlement to take place : Frank James, a highly competent employee of Brinkwater Sales Corporation, had been responsible for accounting-related matters for two decades. His devotion to the firm and his duties had always been exceptional, and over the years, he had been giv..
What is the standard error of the mean : A standard deviation of 36 donuts. If a sample of 16 stores results in a sample average of 249 donuts what is the standard error of the mean?
Prepare an adjusting entry to record the year end fair value : Prepare an adjusting entry, if necessary, to record the year-end fair values adjusting for the portfolio of short-term investment in available –for-sale securities.
Auditing-professional standards : In auditing a privately held entity, an auditor must follow the professional standards established by all of the following except:
The imidazole ring system has a great deal of aromatic : Important information about Imidazole. The imidazole ring system has a great deal of aromatic character. Can you formulate two resonance structures that account for the characteristics?
How much interest expense will be recorded for the period : On November 1, 2015, Archangel Services issued $200,000 of 10-year bonds with a stated rate of 3%. The bonds were sold at discount for $191,000, and make semiannual payments on April 30 and October 31.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Outlining the survey data-understanding variables and result

Locate the results of a recent survey in a newspaper, magazine, or Internet article. Outline the survey data so that your peers can understand the variables and results, and then identify at least one key formula from this Module that you could us..

  Confidence interval for the mean monthly consumption

Use these statistics to construct a 94% confidence interval for the mean monthly consumption for the population of all Ontario households.

  Ci for proportion of patients who experience stomach upset

The mean difference in times between the experiment is -9.4 minutes with a standard deviation of 2.8 minutes). Construct a 90% CI for the proportion of patients who experience stomach upset with the experimental medication.

  Confidence interval for mean bmi

In a previous example about the body mass index of young women we developed a 95% confidence interval for the mean body mass index

  Information about statistical quality control

Two mating parts have critical dimensions x1 and x2 as shown below. Assume that x1 and x2 are normally distributed with means 1 and mean2 and standard deviations s1 = 0.400 and s2 = 0.300.

  Description of confidence interval for proportion

A random sample of 80 voters found that 44% were going to vote for a certain candidate. Find the 90% limit for the population proportion of voters who will vote for that candidate?

  Find probability that all selected workers from day shift

How many selections result in all 6 workers coming from the day shift? What is the probability that all 6 selected workers from the day shift?

  Z-score-calculate the probability

A portfolio manager believes that tomorrow's foreign exchange rate of German marks per US dollar will be Normally distributed with mean 2.03 and standard deviation 0.08. Using the manager's numbers:

  Examine the histogram of the standardized residuals

Examine the histogram of the standardized residuals for the regression of annual earning on annual hours worked among Registered Nurses below. Which conclusions can be made about the model using this graphic?

  Dummy variable in regression analysis

First, describe in your own words (no direct quotes, please) what a dummy variable is and its purpose in regression analysis. Secondly, provide an example of where you might use a dummy variable from your own professional experience.

  Prediction of sat by regression approch

The correlation between IQ and the verbal SAT score among the seniors at GWB High School is .90; it is significant. The mean IQ is 100 with a standard deviation of 10.

  Statistics-hypothesis testing with z-test

A 2005 study found that 202 women held board seats out of a total of 1,195 seats in the Fortune 100 companies. A 2003 study found that 779 women held board seats out of a total of 5,727 seats in the Fortune 500 companies.

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