DQ1a Market Researcher Is Interested In Knowing The Type Of

Question

DQ1a Market Researcher Is Interested In Knowing The Type Of Training T A market researcher is interested in determining which type of training is most effective for DVD users. The researcher randomly selects thirty consumers from a population of known DVD owners and divides them into three groups of ten. One group receives training via a written DVD user's manual, another through a 30-minute training video, and the third via a self-paced computer tutorial. After training, each user’s ability to set up and program the DVD is measured by timing their performance in performing a series of operational tasks. The key question is identifying the appropriate statistical analysis technique for comparing these groups, formulating the null hypothesis, and assessing whether a valid answer can be obtained from the data.

Dr. Jack HW Helper · Accepted Answer

The research design outlined involves comparing three independent groups subjected to different training methods. The primary goal is to determine whether the type of training significantly impacts users’ ability to set up and operate the DVD. Consequently, selecting the appropriate statistical test, understanding its assumptions, and formulating the null hypothesis are vital steps. Choosing the Appropriate Statistical Technique The scenario involves three independent groups, each receiving distinct training interventions, with the outcome measured as the time taken to perform specific tasks. Since the data involves comparing the means across three independent samples, the most suitable statistical analysis is the Analysis of Variance (ANOVA), specifically a one-way ANOVA. This technique allows the researcher to test for statistically significant differences among the means of the three groups, assuming the data meets the necessary assumptions such as normal distribution and homogeneity of variances. If the data do not satisfy these parametric assumptions, a non-parametric alternative such as the Kruskal-Wallis H test can be employed. This test does not require the data to be normally distributed and is useful for ordinal data or when variances are unequal. However, for most experimental designs involving continuous, normally distributed data, ANOVA remains the standard choice. Null Hypothesis and Its Implications The null hypothesis (H₀) for the one-way ANOVA in this context states that there are no differences in the mean setup and programming times among the three training methods. Formally, it can be expressed as: H₀: μ₁ = μ₂ = μ₃ Where μ₁, μ₂, and μ₃ represent the population mean times for the manual, video, and computer tutorial training groups respectively. Can the Market Researcher Obtain an Answer? Yes, the researcher can obtain an answer if the assumptions of ANOVA are satisfied, and the sample size is adequate. The primary assumptions include normality of

DQ1a Market Researcher Is Interested In Knowing The Type Of

DQ1a Market Researcher Is Interested In Knowing The Type Of Training T

Paper For Above instruction

Choosing the Appropriate Statistical Technique

Null Hypothesis and Its Implications

Can the Market Researcher Obtain an Answer?

Conclusion

References