The standard deviation for this sample group

Assignment Help Basic Statistics
Reference no: EM131066623

A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the contents is 81 milliliters. A new machine is tested on a sample of 24 containers and the standard deviation for this sample group is found to be 26 milliliters. At the 0.05 level of significance, test the claim that the amounts dispensed by the new machine have a smaller standard deviation.

Reference no: EM131066623

Questions Cloud

Wishes to estimate the proportion of all american adults : An airline analyst wishes to estimate the proportion of all American adults who are afraid to fly in light of the thwarted terrorist attack on a U.S. commercial airliner on December 25, 2009.
Company year-end balance sheet : Prepare all journal entries related to the warranty for the current year. How will the warranty liability be reported on the company's year-end balance sheet?
Effects of financial crisis on economic zone : Research in Business (BUSN20016) Assessment Task. Project Outline- Effects of Financial Crisis on economic zone. To learn about the influence of financial crisis on the financial zone
Semi-annual interest payment : Record issuance of the bonds on June 30, 2016, the payment of interest at December 31, 2016, and the semi-annual interest payment on June 30 2017
The standard deviation for this sample group : A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the contents is 81 milliliters. A new machine is tested on a sample of 24 containers and the standard deviation for this sample group is found to be 26 mil..
How they perceive the value of the training : You are interested in your employee's opinion of a training class. Specifically, you want to know if their experience level is a factor in how they perceive the value of the training. What are the null and alternate hypotheses?
How many sophomores are in the class : How many sophomores are in the class?
Steps in creating oracle non-predefined exception handlers : What are the differences between anonymous PL/SQL code and procedures (Oracle named blocks)? Explain the steps in creating Oracle non-predefined exception handlers and user defined exception handlers.
Airline claims that the no-show rate for passengers : An airline claims that the no-show rate for passengers is less than 5%. In a sample of 420 randomly selected reservations, 19 were no-shows. Use the z-test for proportions and test the airline's claim. Use a = 0.01. Solution:

Reviews

Write a Review

Basic Statistics Questions & Answers

  Consider a normal distriubtion with mean 5 and standard

consider a normal distriubtion with mean 5 and standard deviation 2a. sketch the associated normal curveb. write the

  Significant association between gender and satisfaction

Using an appropriate statistical test determine if there is a significant association between gender and satisfaction with the new initiative.

  Suppose that the distribution of keyboarding speeds for

suppose that the distribution of keyboarding speeds for students who have completed a two- week keyboarding course is

  Probability of visa card usa

Visa Card USA studied how frequently young consumers, ages 18 to 24, use plastic cards in making purchases. The results of the study provided the following probabilities.

  The monthly average sales of the smiling ninja computer

question 1the monthly average sales of the smiling ninja computer company may be approximated to a normal distribution

  Let x be a random variable that represents the weight in

how much should a healthy kitten weigh? a healthy 10-week-old domestic kitten should weigh an average of mean 24.5

  Hypothesis-expected with random guessing

Test the hypothesis that the dogs did significantly better than what would be expected with random guessing.

  Finding the z-score in construction zone

Find the z-score for a car driving 20 mph in this construction zone. It is an outlier (assume the data is bell shaped, so dont actually test it with pearsons index).

  Course competencies and assessment criteria

By successfully completing this assessment, you will demonstrate your proficiency in the following course competencies and assessment criteria:

  A trading standards officer visits the factory

In a factory items are produced on three production lines, A, B, and C. At the end of each line the items are packed into boxes of 20. These boxes are then stored in the warehouse. The boxes from each production line are stored in separate stacks...

  Hypothesis testing-z test for proportion

A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at most 65%.

  Explain the difference between qualitative quantitative

explain the difference between qualitative quantitative discrete and continuous

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