Question

Question 1

A small independent book retailer owns a shop and an online web store. The retailer is investigating whether there is a difference in purchase behaviour (the type of book purchased) when customers make a purchase in-store compared to buying online. The retailer looks at all the purchases of business, language and fiction books both online and in-store on a randomly selected day. The results are shown in the table below

Table: Number of books purchased online and in-store categorised by book type

	Place of Purchase
Type of Book	In Store	Online
Business	120	155
Language	47	25
Fiction	120	93

Part a)

Use a Chi-square test at a 1% significance level to investigate whether there is an association between the type of book purchased and the place of purchase.

[10 marks]

Part b)

Using the chi-square test result and the survey data shown in the table, briefly summarise the outcome of the survey for the book retailer.

[4 marks]

Answer 1