User Account

All Pages

New system is faster than the old

Assignment Help Basic Statistics
Reference no: EM132523149

The average length of time for students to register in the 1st semester at a certain school has been 50mins. A new registration procedure is being tested. If random samples of 20 students have an average of 45mins with a standard deviation of 9mins under the system, can you conclude that the new system is faster than the old? Use 0.01 level of significance.

Reference no: EM132523149

Questions Cloud

Test data contradict the manufacturer claim : A car manufacturer asserts that with the new collapsible bumper system, the mean body repair cost for the damage sustained in a collision impact
How much should invest at the beginning of each year : She estimates that the car would cost $2,500,000.00. Given that the existing interest rate is 12 %, how much money should she invest now?
Calculate a predetermined overhead rate : Combine the individual overhead costs into a cost pool and calculate a predetermined overhead rate assuming the cost driver is number of units
Chance of detecting an error in a piece of written : A professional proofreader has a 98% chance of detecting an error in a piece of written work (other than misspellings, double words, and similar errors
New system is faster than the old : The average length of time for students to register in the 1st semester at a certain school has been 50mins. A new registration procedure is being
Database design and development : Relevant information for the database which is essentially concerned with recording the information necessary to track the progress of a campaign
What is expected stream of dividends per share for investor : What is the expected stream of dividends per share for an investor who plans to retain his shares rather than sell them back to the company?
Reading comprehension of the freshmen students : Does staying in the college improve reading comprehension of the freshmen students? Use 0.05 level of significance
Historical context of legal national immigration policy : Describe in detail historical context of legal national immigration policy and how national policy has impacted State of Texas both positively and negatively

Reviews

Write a Review

Basic Statistics Questions & Answers

  Convert the data in the table to ranks

Employers often use standardized measures to gauge how likely it is that a new employee with little to no experience will succeed in their company.

  Confidence interval for the population proportion

Construct a? 99% confidence interval for the population proportion. Interpret the results.

  For which class should sara expect the better grade

For which class should Sara expect the better grade? Please explain your answer ASAP.

  Explain which requirements are met and which are not

A student drilled a hole in a die, loaded it with lead weight, and then rolled the die 200 times. The observed frequencies for the outcomes of 1, 2, 3, 4, 5, and 6 are respectively 27, 31, 42, 40, 28, and 32. Would you be able to conduct a goo..

  What is the value of private consumption as share of gdp

Private consumption as a share of GDP is a random quantity that follows a roughly normal distribution. According to an article in BusinessWeek.

  Charged on the outstanding balance

A man buys a car for £4500 and pays a deposit of 20 per cent. Interest is charged 2.5 per cent on the outstanding balance. He repays this balance over 24 months. How much is the monthly instalment (to the nearest penny)?

  Create a five number summary for the rainfall data

Create a five-number summary for the rainfall data in given Example, Table. Write a few sentences describing the dataset. The data are in the dataset rainfall on the companion website.

  Are the species and sex of the animals independent

Pets again. The local animal shelter in Exercise reported that it currently has 24 dogs and 18 cats available for adoption; 8 of the dogs and 6 of the cats.

  Computing t test and p-value

Solar cells are attached to a panel with a new heat resistant adhesive. The adhesive must provide 2.80 pounds of force in order to hold the cell on the panel. A random sample of 50 cells is tested and the following forces are necessary to break th..

  Compute the ratios for each region by dividing the number

One way to compare the numbers of Facebook users for different regions of the world is to take into account the populations of these regions.

  State the death rate before and after vaccine

State the death rate before vaccine and the death rate after vaccine. What was the change in deaths per 100,000 children? From the given p-value.

  Population and a random sample

A) Describe the term population. B) Describe the term random sample. C) What is the difference between a population and a random sample?

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