User Account

All Pages

Two-sided hypothesis test to determine

Assignment Help Basic Statistics
Reference no: EM131697797

A production line produces rulers that are supposed to be 12 inches long. A sample of 49 of the rulers had a mean of 12.1 and a standard deviation of .5 inches. The quality control specialist responsible for the production line decides to two-sided hypothesis test to determine whether the production line is really producing rulers that are 12 inches long or not.

a) What is the null hypothesis?

Ho: u=12

b) What is the alternative hypothesis

H1:

c) Using whatever method, you want, clearly run and summarize the result of the hypothesis test. What does this mean in terms of the problem situation?

Tstat= x'- Uo/(s/ )    12.1-12/(.5/ ) = 1.49  .5/.7 = 1.400

Do not reject the null hypothesis. There is no evidence that the average length of the rulers is different inches.

Reference no: EM131697797

Questions Cloud

Normally distributed with a mean : Suppose that x is normally distributed with a mean of 20 and a standard deviation of 15. What is P(-7.45 = x = 54.95)?
Simple index of weight for height : Body mass is a simple index of weight for height that is commonly used to classify overweight and obesity in adults.
Considering locations at two different shopping centers : The results of the October 3rd vote on the Emergency Stabilization Act of 2008 are shown in the table below.
What are the functions of audit documentation : What are the functions of audit documentation? The testing of hierarchy is considered to be more effective and more efficient. Why?
Two-sided hypothesis test to determine : The quality control specialist responsible for the production line decides to two-sided hypothesis test to determine whether the production line.
How does model differ from traditional pricing approaches : What are the pros and cons of the model? How does the model differ from traditional pricing approaches discussed in the textbook?
Determine the investment and the amount of cash savings : Determine the investment and the amount of cash savings realized each year for Video Repair.
Approximate percentage of cars : Using the empirical rule (as presented in the book), what is the approximate percentage of cars that remain in service between 43 and 54 months?
Daily requests to replace florescent light bulbs : The physical plant at the main campus of a large state university receives daily requests to replace florescent light bulbs.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Solve problem using the standard stepwise regression

Use the standard stepwise regression to produce an estimate of a multiple regression model to predict y. Use 0.15 as the alpha to enter and to remove.

  Amount of variation in the data

A graphical presentation may accomplish ALL BUT which of the following objectives? Illustrate the amount of variation in the data.

  Now the group is 4500 people and 1000 of them are

now the group is 4500 people and 1000 of them are left-handed. as before eight of them are selected and x - the number

  If the conditions of a survey sample satisfy those required

if the conditions of a survey sample satisfy those required by the central limit theorem then there is a 95 probability

  Economical number to produce per production run

Once production is set up, 80 units can be produced per day. Daily demand rate for the units is 60 per day. a. What is the most economical number to produce per production run? b. How long is each production cycle?

  Peas are generated from parents having the greenyellow pair

peas are generated from parents having the greenyellow pair of genes so there is a .75 probability that an individual

  Difference between average population ratings of cameras

For the Minolta sample, the average sample rating is 7.8, and the standard deviation is 1.8. Is there a difference between the average population ratings.

  Transforming the data

Refer to Exercise 7.118 and the OC data for 31 females. Variables that measure concentrations such as this often have distributions that are skewed to the right. For this reason it is common to work with the logarithms of the measured values. Her..

  A bagel shop wants to estimate their daily demand for their

a bagel shop wants to estimate their daily demand for their popular poppy seed bagel. the shop owner determined that

  1as the degrees of freedom become larger the difference

1.as the degrees of freedom become larger the difference between the t and z distributions becomesa.narrowerb.stays the

  Forecasting of operations management

A manager receives a forecast for next year. Demand is projected to be 600 units for the first half of the year and 900 units for the second half.

  Will larger samples generally give larger or smaller margin

What can you conclude about the results of a significance test of the null hypothesis that the population means are equal versus the two-sided alternative?

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