Maximum error of estimate-sample size-width of confidence

Assignment Help Basic Statistics
Reference no: EM13105408

Given a level of confidence of 99% and a population standard deviation of 10, what other information is necessary:

(A) To find the Maximum Error of Estimate (E)?

(B) To find the sample size (n)?

(C) Given the above confidence level and population standard deviation, find the Maximum Error of Estimate (E) if n = 45. Show all your calculations. Show all work.

(D) For this same sample of n = 45, what is the width of the confidence interval around the population mean? Show all work.

(E) Given this same confidence level and standard deviation, find n if E = 3.5. (Always round to the nearest whole person.) Show all work.

Reference no: EM13105408

Questions Cloud

What will be the percentage return on investment : What will be the percentage return on your investment if you bought the stock on margin as well as the margin requirement was a. 25 percent
Llustrate what are their company goals : From the annual reports you previewed, illustrate what is the company’s corporate strategy? Illustrate what are their company goals and were they successful in achieving those goals? Please list the company of the annual report you previewed.
Find the total time the projectile is in the air : a projectile is fired with an initial velocity of 35 m/s at an angle of 30 degrees above horizontal of a 30 feet tall building. find (a) the max height of the projectile
Determine new completion date for the project : Based on the table, perform resource limited scheduling. Assume that each task can perform independently from the other tasks. Assume that only 2 workers are availible at any given time.
Maximum error of estimate-sample size-width of confidence : Given a level of confidence of 99% and a population standard deviation of 10, what other information is necessary:
Explain the steps and compute your profit : explain the Steps and compute your profit? Illustrate what are the implications of trading spreads and commission costs for this profit? Is commission costs are $3,000 per transactions, is arbitrage still possible and profitable?
Describe the seven external factors that could impact : Describe the seven external factors that could impact the business as well as marketing efforts
Determine the length of time the bullet : The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (-5.30 107) t 2 + (3.15 105) t, where v is in meters per second and t is in seconds.
Adults having iq scores and are normally distributed : Assume adults have IQ scores that are normally distributed with a mean of 105 and a standard dviation 20. Find the probability that a rondomly selected adult has an IQ betwwen 93 and 117.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Time series plot for commodity futures index

Construct a time series plot. What type of pattern exists in the data? Compute the exponential smoothing forecasts for a = .2.

  Mean diastolic blood pressure

The mean diastolic blood pressure for random sample of 90 people was 92 millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be 12 millimeters of mercury

  Probability problem marginal analysis

On the fictitious game show "Marginal Analysis for Everyone" the host subjects contestants to unusual tests of mental skill. On one, a contestant may choose one of two identical envelopes labeled A and B, each of which contains an unknown amount o..

  Finding mean-standard deviation from percentiles

The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked" large" and shrimp that weigh less than 0.47 ounces each into packages marked "small"; the remainder are packed in "medium" size packages.

  Likelihood of accurately predicting customers purchases

These predictions, however, are not very accurate. Discuss at least three reasons why these predictions may not be accurate and offer three ways in which you can increase the likelihood of accurately predicting your customers' purchases.

  Chebychev inequality for average time

A researcher wants to estimate the average time (in minutes) spent in a car daily. This will be done by randomly surveying 300 individuals and calculating the sample mean.

  Which problems required a normal distribution

What signified to you on all of the problems that required a normal distribution that you were to use a normal distribution? Which problems required a normal distribution?

  Interpret the decision regarding the null hypothesis

At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? Compute the value of the test statistic.

  Annual precipitation-normal distributions

The annual precipitation amounts in certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches.

  Plot data on us general aviation

Plot the data on U.S. general aviation shipments (b) Describe the patterns and discuss possible causes.(c) Would a fitted trend be helpful? Explain. (d) Make a similar graph for 1992-2003 only.

  Statistics-standard deviation question

A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 47.2 , with a standard deviation of 10.2.

  Statistic from a contingency table

The χ 2  statistic from a contingency table with 6 rows and five columns will have:

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