User Account

All Pages

Construct a 95 confidence interval estimate of the

Assignment Help Basic Statistics
Reference no: EM13584483

The quality-control manager at a light bulb factory needs to determine whether the mean life of a large shipment of light bulbs is equal to 375 hours. The population standard deviation is 100 hours. A random sample of 64 light bulbs indicates a sample mean life of 350 hours.

  1. At the 0.05 level of significance, is there evidence that the mean life is different from 375 hours?
  2. Compute the p-value and interpret its meaning.
  3. Construct a 95% confidence interval estimate of the population mean life of the light bulbs.
  4. Compare the results of (a) and (c). What conclusions do you reach?

Reference no: EM13584483

Questions Cloud

Cedars hospital has average revenue of 180 per patient day : cedars hospital has average revenue of 180 per patient day. variable costs are 45 per patient day fixed costs total
In computing the cost of an automobile the cost of small : 1. an unexpired cost appears on the balance sheet and expired cost appears on the income statement.true or false2.
Create a comparative table of five famous viruses such as : create a comparative table of five famous viruses such as c-brain friday 13th melissa lovebug and so forth to compare
In a town 60 of families are known to drive european cars : in a town 60 of families are known to drive european cars. in a sample of 10 families what is the probability that at
Construct a 95 confidence interval estimate of the : the quality-control manager at a light bulb factory needs to determine whether the mean life of a large shipment of
The information that follows pertains to consumer products : the information that follows pertains to consumer products for the year ended december 31
If the company drills 12 wells what is the probability that : norfisk oil is drilling some exploratory wells on the mainland of norway. the results are described as either a
Merritt company uses a process cost system of accounting : merritt company uses a process cost system of accounting for the following transactions. journalize the entries
On december 15 2013 ted purchases and occupies a new : on july 1 2013 ted age 73 and single sells his personal residence of the last 30 years for 365000. teds basis in his

Reviews

Write a Review

Basic Statistics Questions & Answers

  Confidence interval application

The US Census Bureau announce that the median sales price of new houses sold in April 2009 was $221,600 while the mean sales price was $274,300. Assume that the standard deviation of the prices is $90,000.

  Application of linear regression

The management of a chain of fast food restaurants wants to investigate the relationship between the daily sales volume (in dollars) of a company restaurant and the number of competitor restaurants within a 1 mile radius. The following data have b..

  Least square regression line

Based on a scatter diagram, would you estimate the linear correlation coefficient to be:

  Determining probability and tree diagrams

A craftsperson makes stuffed animals for sale. 85% of the animals she makes are bears while the remaining 15% are rabbits. Suppose she sells 75% of her bears at craft shows but only 50% of her rabbits are sold at craft shows.

  Find confidence interval for population mean-annual growth

Find a 90% confidence interval for the population mean of annual growth (of those trees with an initial size of 2.41-2.60 centimeters).

  You need to estimate the mean christmas sales across a large

You need to estimate the mean Christmas sales across a large chain of jewelry stores. You want to estimate this mean value to within $100 with 99% confidence

  Paragraph about the normal distribution

Write down a paragraph about the normal distribution. In the paragraph give an example of a distribution that you would judge to be nearly normal and explain why you have made that conclusion.

  How to compute probability value using normal distribution

X has a normal distribution with a mean of 80.0 and a standard deviation of 3.5. Find the following probabilities.

  Test claim that the actual amount of coke exceeds a value

Test the claim that the actual amount of coke exceeds 12 ounces. (Note: You can use the value of $s$ as the value of $sigma$ for your hypothesis test).

  Find margin of error in estimating population mean

Determine the margin of error in estimating the population mean. a sample of 68 college students yields a mean annual income of $3248.

  For each of the following state the null hypothesis and the

q1. for each of the following state the null hypothesis and the alternative hypothesis.a the publisher of celebrity

  Basic formula of a line

Regression analysis works with the basic formula of a line, which is Y = mX + b. We can use it to look at causation. Think about the Lemonade Stand Game.

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