User Account

All Pages

Construct a confidence interval for the true distance

Assignment Help Basic Statistics
Reference no: EM131745985

Question - Paper airplanes. In preparation for a regional paper airplane competition, a student tried out her latest design. The distances her plane traveled (in feet) in 11 trial flights are given here. (The world record is an astounding 193.01 feet!) The data were 62, 52, 68, 23, 34, 45, 27, 42, 83, 56, and 40 feet. Here are some summaries:

2333_figure.png

a) Construct a 95% confidence interval for the true distance.

b) Based on your confidence interval, is it plausible that the mean distance is 40 ft? Explain.

c) How would a 99% confidence interval for the true distance differ from your answer in part a? Explain briefly, without actually calculating a new interval.

d) How large a sample size would the student need to get a confidence interval half as wide as the one you got in part a, at the same confidence level?

Reference no: EM131745985

Questions Cloud

Analyze the value of the press coverage in the media : Analyze the value of the press coverage in the media of the high profile law cases.Give special attention on the effect of the prejudicial publicity in the case
Write a program that allows the user to enter center point : Write a program that allows the user to enter the center point and a point on the circle into textboxes (you can use four for the four coordinates).
Estimate the true percentage of people : How many such random checks would they have to do to estimate the true percentage of people who misrepresent their backgrounds to within with 98% confidence
How is status determined in hindu society : Describe in more detail the four castes prescribed by orthodox Hinduism? How is status determined in Hindu society?
Construct a confidence interval for the true distance : Paper airplanes. In preparation for a regional paper airplane competition, a student tried out her latest design. Construct a 95% confidence interval
Wealthy neighborhood and a fairly poor neighborhood : You recently inherited some property between a wealthy neighborhood and a fairly poor neighborhood.
What steps must be taken to prove insanity : Does you feel this defendant is competent to stand trial? Why or why not? What is required in your state for an insanity defense?
Write an executive briefing memo to technical leadership : Write a 3-pages executive briefing memo to technical leadership identifying a current system within your organization's network that you would propose moving.
How many herds of wild horses were studied : Wild horses. Large herds of wild horses can become a problem on some federal lands in the West. How many herds of wild horses were studied

Reviews

Write a Review

Basic Statistics Questions & Answers

  Suppose that 13 of all steel shafts produced by a certain

suppose that 13 of all steel shafts produced by a certain process are nonconforming but can be reworked rather than

  Compute the mean and variance and standard deviation

For a local charity, the donations in dollars received during the last month were 5, 10, 15, 20, 25, 50 having the frequencies 20, 30, 10, 40, 50, 5. Compute the mean, variance and standard deviation.

  Consider the single-sample plan that utilizes

Consider the single-sample plan that utilizes n = 50 and c = 1 when N = 2000. Determine the values of AOQ and ATI for selected values of p, and graph each of these against p. Also determine the value of AOQ

  Gven n 36 005 and 3 draw a normal curve and label

a customer service manager charting customer complains wants to be able to detect an increase equal to one complaint in

  Compute the expectations and variances

One of the 4 bus drivers is also randomly selected. Let Y denote the number of students on his bus. Compute the expectations and variances of X and Y?

  Sketch a standard normal curve

Satisfies each of the following statements. In each case, sketch a standard Normal curve and shade the area under the curve that is the answer to the question.

  What is the distribution for the total length of batteries

The length of time a particular smartphone's battery lasts follows an exponential distribution with a mean of ten months.

  Distribution of the sample mean x-bar

If the sample size (n) is large, and the sample is a random sample, then the distribution of the sample mean x-bar is approximately a:

  Calculate for alpha, beta, and the effect size

Calculate for Alpha, Beta, and the Effect size?

  What is the probability that it came

Find the probability that the mp3 is defective. If the mp3 is defective what is the probability it came from Factory I? If the mp3 player is no defective, what is the probability that it came from factory II?

  What general conclusion would you make about mutually

assume that we have two events a and b that are mutually exclusive. assume further that we know pa .30 and pb .40.a.

  Estimate the results of an upcoming local election

A university is conducting a survey in order to estimate the results of an upcoming local election. They intend to take a simple random sample of individuals from the population of eligible voters.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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