Independent sample t test
Not what you're looking for?
Periodically Merrill Lynch customers are asked to evaluate Merrill Lynch¯Financial consultants and services (2000 Merrill Lynch Client Satisfactory Survey). Higher ratings on the client satisfaction survey indicate better service with 7 the maximum service
rating. Independent samples of service ratings for two ¯Financial consultants are summarized below. Consultant A has 10 years of experience while consultant B has 1 year of experience. Using a= .05, test to see whether the consultant with the more experience has the higher population mean service rating.
Consultant A Consultant B
x1 = 6.82 x2 = 6.25
s1 = .64 s2 = .75
n1 = 16 n2 = 10
a) State the null and the alternative hypotheses.
b) Compute the value of the test statistic.
c) What is the p-value?
d) What is your conclusion?
Purchase this Solution
Solution Summary
Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.