Two-sample T-test
Not what you're looking for?
A market analyst wants to determine the difference in the average price of a gallon of milk in Cleveland and New York. A telephone survey is conducted consisting of 31 randomly selected consumers in Cleveland. They are asked if they purchased a gallon of milk during the past 2 weeks. If no, he continues to select consumers until he selects n=31 people who say yes. If yes, he asks how much they paid for the gallon of milk. A similar survey is conducted in New York with 31 respondents. The data compiled is:
Seattle Atlanta
-------------------------------------------------------
$2.55 $2.36 $2.43 $2.25 $2.40 $2.39
2.67 2.54 2.43 2.30 2.33 2.40
2.50 2.54 2.38 2.19 2.29 2.23
2.61 2.80 2.49 2.41 2.18 2.29
3.10 2.61 2.57 2.39 2.59 2.53
2.86 2.56 2.71 2.26 2.38 2.19
2.50 2.64 2.97 2.19 2.25 2.45
2.47 2.72 2.65 2.42 2.61 2.33
2.76 2.73 2.80 2.60 2.25 2.51
2.65 2.83 2.69 2.38 2.29 2.36
2.71 2.44
Do a two-sample t-test for the above given data. Use the five step hypothesis testing procedure to determine whether the price of a gallon of milk between Cleveland and New York is different. Interpret the results and make recommendations.
Purchase this Solution
Solution Summary
This Solution contains calculations to aid you in understanding the Solution to this question.
Purchase this Solution
Free BrainMass Quizzes
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
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.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.