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Statistics - Coursework Example

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The histogram below illustrates the normality for the variable customers’ satisfaction. Make some conclusions about the normality. Please, give the definitions of the concepts a) skewness and b) kurtosis. (4 marks)
If Fa is greater than the significant level, we…
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Statistics Coursework
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Download file to see previous pages A marketing manager of a well-known bookstore in the UK conducted a survey measuring customers’ loyalty. Customers’ Loyalty was measured with one question on an ordinal scale from 1 to 10, with lower values indicating less strength and higher values greater strength. The manager also took details on their gender. The manager performed a t-test to examine whether there was an association between the variables loyalty and gender. The results are shown below.
The difference between the means is evidently significantly low at 0.86. However, from the test results, the p value 0.0002 is less compared to the significance level of 0.05. For this reason, we reject the null hypothesis. We may thus conclude that loyalty may be associated with gender.
It means that the difference between the mean loyalty level of males and the mean loyalty level of the females is 0.86. That is mean of male group minus mean of female group is -0.86. The negative sign shows that the mean of the female group is higher than the mean of the male ...Download file to see next pagesRead More
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