Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

In a pilot survey, thirty (30) respondents were asked to indicate their preference for universities (measured on a 7-point scale where 1=not at all preferred

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed

In a pilot survey, thirty (30) respondents were asked to indicate their preference for universities (measured on a 7-point scale where 1=not at all preferred and 7=greatly preferred) and their emphasis on the attributes of job prospects, quality of teaching, location benefits, and reputation (measured on a 7-point scale where 1=not at all important and 7=very important). Results of the pilot survey are presented below:

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
Hypothesis testing process Problem Definition Clearly state the null and alternative hypotheses Determine the Choose the relevant test degrees of freedom Determine the Decide if one-or two- significance level Choose the critical value tailed test Compute relevant Compare test statistic & critical value test statistic Does the test statistic fall in the critical Do not reject null region? Reject null Draw marketing research conclusionStep 1: Problem definition . Stating the problem confronting the manager and the marketing research problem that the researcher will address Symptoms vs. underlying causes . Research focus and purpose . Research questions . Research objectives . Constructs or variables of interest . Ultimately, your hypotheses!Step 2: Formulate the hypothesis A null hypothesis is a statement of the status quo, one of no difference or effect. If the null hypothesis is not rejected, no changes will be made. - An alternative hypothesis is one in which some difference or effect is expected. Accepting the alternative hypothesis will leac to changes in opinions or actions. - In marketing research, the null hypothesis is formulated in such a way that its rejection leads to the acceptance of the desired conclusion. The alternative hypothesis represents the conclusion for which evidence is sought. E.g., drug A reduces/increases symptom X (H1) vs. no effect (HO) Step 2: Formulate the hypothesis (cont) - The test of the null hypothesis is a one-tailed test, because the alternative hypothesis is expressed directionally (i.e., there is some preferred direction, whether larger or smaller than some predefined value) HO: p s 0.40 (null) H]: p > 0.40 (alternative, one-tailed) Ifthat is not the case, then a two-tailed test would be required, and the hypotheses would be expressed as: HO: (.1 = 0.40 (status-quo, no difference) H]: p i 0.40 (alternative, two-tailed) Step 3: Select an appropriate test Parametric statistical techniques Using parametric data (e.g., interval, ratio) . E.g., t-tests, correlation, regression analysis Non-parametric statistical techniques . Using non-parametric data (e.g., nominal, ordinal) . E.g., cross-tabulations, chi-square testTypes of data and statistical techniques Nominal and ordinal scales Interval and ratio scales Non-metric data (categorical) Metric data (numerical) Non-parametric tests Parametric tests - Frequencies - t-tests - Cross-tabulations - Correlation - Chi-square (hypothesis testing) - RegressionStep 4: Choose a level of signicance Whenever an inference is made about a population, there is a risk that an incorrect conclusion will be reached. Two types of error can occun Type I error occurs when the sample results lead to the rejection 01 the null hypothesis when it is in fact true The probability of Type I error (a) is also called the level of significance which is specified by the researcher Type I error is controlled by establishing the tolerable level of risk (i.e., threshold) of rejecting a null hypothesis (typically at 5%) - If p

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Complex Analysis For Mathematics And Engineering

Authors: John H Mathews, Russell W Howell

6th Edition

1449604463, 9781449604462

More Books

Students also viewed these Mathematics questions