Statistics for Data Science and Business Analysis - Test for the Mean; Independent Samples (Part 2)

Statistics for Data Science and Business Analysis - Test for the Mean; Independent Samples (Part 2)

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Interactive Video

Information Technology (IT), Architecture, Mathematics

University

Hard

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The video tutorial covers hypothesis testing with independent samples and unknown but equal variances. It revisits a dataset comparing apple prices in New York and LA, setting up null and alternative hypotheses. The tutorial explains using pooled variance and calculating the standard error, followed by determining the T-statistic and degrees of freedom. It interprets the results, highlighting the significance of the P-value, and concludes with a discussion on the implications of the findings and further questions for exploration.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the implications of a P value lower than 0.01 in this context.

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Based on the mean values provided, what conclusion can be drawn about apple prices in New York compared to LA?

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