What is the null hypothesis of this research

Assignment Help Applied Statistics

Reference no: EM132399197

Problem 1

Conduct a T test

A consumer researcher wanted to know if customers really are influenced to buy more from sales clerks who smile. To test this, clerks at eight stores in a large Canadian clothing chain were given special instructions at the start of a week and then sales over the week were recorded.

Canadian Retail stores were randomly selected to have the clerks receive instructions to be especially courteous and to smile a lot. Clerks at other stores were simply instructed to be especially courteous. Sales Do these results suggest that customers might buy more if they encounter smiling sales clerks? (Use the .05 level.)

-What is the Null Hypothesis of this research?

-What is the Hypothesis of this research?

-Interpret the research findings when finished?

Problem 2

Conduct an t Test for independent samples to complete the following:

A theater department enlists the help of a social science professor to design a study to see if being surrounded by highly attractive people affects the performance of young actors. Each of 30 student actors is provided a script and asked to enact a particular scene with a group of other performers, and his/her performance is rated by a panel of judges.

This enacting of the scene, however, occurs under one of two conditions, to which the actors are randomly assigned: For 13 of the actors, all the other performers are dressed and made up to look very attractive; for the other 17 actors, all the same other performers are made to look very unattractive.

The mean performance ratings for the actors with attractive co-performers was 5.6 (S = .92); with unattractive co-performers, the mean was 6.8 (S = 1.4). Do these results suggest that acting with attractive co-performers affects performance? (Use the .05 significance level.)

-What is the Null hypothesis of this research?

-What is the hypothesis of this research?

-When done please interpret the finding?

Attachment:- Chapter 9.rar

Reference no: EM132399197

Questions Cloud

What is the advantage of analysis dashboards : What is the advantage of analysis dashboards? Give an example of application dashboards.

722CGOV Corporate Governance - Concepts and Practices : 722CGOV Corporate Governance: Concepts and Practices Assignment Help and Solution - Australian Institute of Business, Australia

Phases of developing an enterprise security system : Briefly describe a business impact analysis (BIA) and what it estimates and identifies.

Analyze the time required and give corresponding pseudocode : Give the algorithm iteratively with memoization. Analyze the time required and give corresponding pseudocode

What is the null hypothesis of this research : A theater department enlists the help of a social science professor to design a study to see if being surrounded by highly attractive people affects.

712FMGT Financial Management Assignment : 712FMGT Financial Management Assignment Help and Solution - Australian Institute of Business, Australia. BRIEF overview of the recent stock price

Find the appropriate statistics as you have done in spss : Find the appropriate statistics as you have done in SPSS Project 1, needed to describe the employee satisfaction level of the Marketing department.

Assume a program p running on a single-processor : Assume a program P running on a single-processor system takes time T to complete. 40% of P can only be executed sequentially on a single processor

What is speedup and scaleup : What is speedup and scaleup? Give three reasons why we cannot do better than linear speedup.

User Account

All Pages