User Account

All Pages

Confidence interval for the mean price

Assignment Help Basic Statistics
Reference no: EM131210978

A random sample of 9 TI-89 Titanium calculators being sold over the internet had the following prices, in dollars.

135,163,152,153,138,164,160,149,157

Assume the population standard deviation is σ+28 and that the population is approximately normal. Construct a 95% confidence interval for the mean price for all the TI-89's being sold over the internet. Select one: A. (145.5, 159.2) B. (97.5, 207.2) C. (145.6, 159.1) D. (134.0, 170.6)

Reference no: EM131210978

Questions Cloud

Research strategy that you will use to explore the problem : Select an organizational issue, problem, or topic that you would like to research. You have the option to either write a narrative 800-1,000 word paper or create a 6-8 slide (not including title/reference slides) PowerPoint about your proposed res..
Sample show that the average age : The average age of a part-time employee at a ski resort has historically been 37 years. A random sample of 50 part-time employees in 2011 had a sample mean age of 38.5 years with a sample standard deviation of 16 years. At 10 percent level of sig..
Distributed with a standard deviation : A fire department aims to respond to fire calls in 4 minutes or less, on average. Response times are normally distributed with a standard deviation of 1 minute. Would a sample of 18 fire calls with a mean response time of 4 minutes 30 seconds provi..
Find another very important number in mathematics : Do some research on either one of these two numbers, or, better yet, find another very important number in mathematics.
Confidence interval for the mean price : Assume the population standard deviation is σ+28 and that the population is approximately normal. Construct a 95% confidence interval for the mean price for all the TI-89's being sold over the internet. Select one: A. (145.5, 159.2) B. (97.5, 207...
What is the labor cost per unit of wheat output : What is the labor cost per unit of wheat output? Per unit of cloth? What is the rental cost per unit of wheat? Per unit of cloth?
How to break the stream into tokens : Your must tokenize the entire input stream, using the lexical specification below to dictate how to break the stream into tokens.
City oppose a downtown casino : Input According to a survey, 59% of the residents of a city oppose a downtown casino. Of these 59% about 8out of 10 strongly oppose the casino. Complete parts (a) through (c).
Find the month and year of the last payment : Assume that the first payment is made in January of the current year. Find the month and year of the last payment. Find the date of the first month when the amount applied to the principal exceeds the amount of interest paid.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Create a histogram and a percentage polygon

Form a frequency distribution and a percentage distribution that have class intervals with the upper class limits $99, $119, and so on.

  Consider the following joint discrete probability mass

consider the following joint discrete probability mass function pmfpxy 0.1 for xy 11 21 12 and 220.2

  Correlation coefficient and three limitations

What are three assumptions for the evaluation of a correlation coefficient and three limitations?

  A random sample of 900 individuals has been selected from a

a random sample of 900 individuals has been selected from a large population. it was found that 180 are regular users

  Probability based on central limit theorem

Assume that you choose a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?

  1a researcher wishes to compare the effect of the rate of

1.a researcher wishes to compare the effect of the rate of stepping on heart rate in a step-aerobics workout. a

  Confidence interval using proportion testing

Assume if the students toss the coin 200 times each about 68% should have proportions among what two numbers.

  Why is the required sample size larger

The sample size formula for a confidence interval for the population mean requires an estimate of the population standard deviation.- why is the required sample size larger if the population standard deviation is larger.

  Find probability-none of the three parents give punishment

What is the probability that none of the three parents condone spanking as a regular form of punishment for their children?

  Diagonal matrix of r nonzero latent roots

(i) The ith minimum angle between an arbitrary vector in the space of the first r principal components of the first sample, and the one most nearly parallel to it in the space of the first r components of the second sample is cos-1(mi1/2) where mi ..

  The number of marriage licenses issued

The number of marriage licenses issued in a certain city during the month of June may be looked upon as a random variable with μ = 124 and σ = 7.5. According to Chebyshev's theorem, with what probability can we assert that between 64 and 184 marr..

  Construction of the confidence interval using the given data

Construct a 95% confidence interval on the population mean for the following sample data set:

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