6.1 achieved at first chance! This document is written for the first opportunity in academic year 2021/2022, if you are in a different academic year, you may have other questions. For this document, I got a 6.1 for the first chance, so don't take over everything literally, but also see for yourself...
Klas: HABSMAVT3A
Study: Business studies, Haarlem
Semester 2: OE601: research skills for marketeers
Teacher: Henk Grimmelius
Sign in date: 19 April ’22
Part C: linear regression ................................................................................................................................. 30
A1
Question: Do the customers who receive a newsletter generate a higher revenue than the
others, on average?
The null hypothesis states that the customers who receive a newsletter generate a higher
revenue than the others (the ones who don’t receive a newsletter). The test used is the
“Independent Samples T-Test”. Levene’s test (0,966) is higher than 0,05 so the first t-test is
used: <0,001. <0,001 is lower than 0,05. This means that there is a significant difference
between the revenue of people who receive a newsletter and who don’t. The null hypothesis
can be seen as the practical conclusion: there is a significant difference between the revenue
of people who receive a newsletter and who don’t receive a newsletter.
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