sAMPLING mETHOD, Basic Statistics

Assignment Help:
A toothpaste company wants to know if its new product increases the length of time in between dentist
visits for its users. The company sets a target of 180 days to determine if its product prevents dentist visits
longer than other toothpastes. A random sample of 49 customers is taken with a mean of 186 days and a
standard deviation of 20. Set up a one-tailed test at 0.01 level.

Related Discussions:- sAMPLING mETHOD

Semi average trend values, Year : 2008 2009 2010 2011 2012 2013 sale : 111 ...

Year : 2008 2009 2010 2011 2012 2013 sale : 111 120 114 123 117 126

Sampling errors, what are the types of sampling errors and their causes?

what are the types of sampling errors and their causes?

Determine the coefficient of determination, A researcher is interested in t...

A researcher is interested in the relationship between fathers' performance in high school and their children's social skills.  She obtains the high school transcripts of fathers a

Time series , what is the importance of time series

what is the importance of time series

Explain the effects of the transactions, Explain the effects of the transac...

Explain the effects of the transactions on Accounting Equation under a Financial Accounting System. Ans. Under the Double Entry System each of the financial transaction bring the

Thermodynamics, Answers for calculate the amount of heat which must be adde...

Answers for calculate the amount of heat which must be added or removed to change the temperature of a gas

International accounting standards committee, IASC:  The IASC (Internationa...

IASC:  The IASC (International Accounting Standards Committee is an international organization which was set up in 1973 was restructured to form IASB in 2001. It was an agreement b

T test, Ten students are given coaching for environmental statistics. The s...

Ten students are given coaching for environmental statistics. The score obtained in tests 1 and 5 are given below: Sl No of student 1 2 3 4 5 6 7 8 9 10 Marks in 1st test 50 52 53

Define payroll accounting, It's a fact of business–if an organization has w...

It's a fact of business–if an organization has workers, it has to account for paycheck and edge advantages. In this description of paycheck bookkeeping we'll present paycheck, e

Write Your Message!

Captcha
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