Question 7 (Unit 9) - 11 marks weak? You will need to use Minitab to answer this question. Justify your answer. [2] The Minitab file that you require for this question should be downloaded from 2. (c) Based on your observations in part (b) while looking at the the 'Assessment' area on the module website. scatterplot, make a guess about the correlation coefficient between the two variables. The Minitab worksheet Trade2020.mwx contains data about the trade of goods Your answer doesn't have to be very close to the true value, but you by the United Kingdom with countries in the European Union. It contains the should aim to get the sign right, and you must justify your answer. [1] value of trade, as exports and imports, to each country, measured in million , 3. (d) Suppose you were asked to produce a scatterplot where the X and for the year 2020. The first column, headed Country, contains the name of the Y country, while the other two columns, headed Export and Import, contain the axes were swapped. Is it correct that this would change the sign of the value of trade in each category. The ONS publishes such trade information in an correlation coefficient? [1] official publication called the Pink Book. 4. (e) Use Minitab to calculate and report the correlation coefficient between Run Minitab and open this worksheet. the two variables. You do not need to include a copy of the Minitab output in your answer. [1] 1. (a) Use Minitab to make a scatterplot of Import as the Y variable against Export as the X variable. Include a copy of the plot in your answer. 5. (f) By looking at the scatterplot, do you think there are any outliers? Explain your answer. [2] 6. (g) Would an increase in exports necessarily cause an increase in imports? Explain your answer. [1] 7. (h) Suppose that UK exports to all countries halved duc to a production crisis, while imports remained at the same level. Will the correlation coefficient between the resulting Export and Import values become half of the original correlation cocfficient value? Explain your answer. 1. (b) Look at the scatterplot and comment on the relationship between the two variables - is the relationship positive or negative? Strong or