Researcher wants to carry out hypothesis testinvolving

Reference no: EM13338465

A researcher wants to carry out a hypothesis testinvolving the mean for a sample of size n= 18. She does not knowthe true value of the population standard deviation but isreasonably sure that the underlying population is appropriatelynormally distributed. Should she use a z test or a t test incarrying out the analysis? Why?

Reference no: EM13338465

Questions Cloud

Confidenceinterval for the population mean : To estimate the average annual expenses of students on books andclass materials a sample of size 36 is taken. The mean is850$ and the standard deviation is 54$. A 99% confidenceinterval for the population mean is:

Supply chain management and logistics management : Comparison between supply chain management and logistics management?

What is lays market share and globalization : What are lay's chipce's target market, maketsegmentation/ variables, and relate the sementation to marketingmix? What is lay's market share and globalization ??

Interest received from the partnership firm : Does the individual partners are liable to pay taxon interest received from the partnership firm? Justify your answer in either case. A local companyhas hired services of private security guards for security of itskey management personnel. Should th..

Researcher wants to carry out hypothesis testinvolving : A researcher wants to carry out a hypothesis testinvolving the mean for a sample of size n= 18. She does not knowthe true value of the population standard deviation but isreasonably sure that the underlying population is appropriatelynormally distrib..

Responsible in the case of an injury caused : Miles purchased a lawnmowerwith an attached warning that said "The manufacturer is notresponsible in the case of an injury caused by the lawnmower." IfMiles is injured because of a defect in the mower and sues the lawnmower manufacturer, he will most..

International council of shopping centers reports : The international council of shopping centers reports that the average teenager spends 39 during a shopping trip to the mall. The promotions director of a local mall has used a variety of strategies to attract area teens to his mall, including live b..

Write a model for as function of estimator role : Write a model for E(y) as a function of estimator role. interpretfor s

Competitive analysis of the airline industry : Deregulation in 1978 totally restructured and revamped the airlineindustry. Before the industry deregulated, the airline wereassigned routes and fares and healthy profits for all competitorswere practically guaranteed.But with deregulation came the f..

User Account

All Pages