[4] Number of apricot- coloured pansies, x 3 Expected frequency 17.2274 Note: The discrepancy in the decimal places is due to approximation errors. (c) Copy and complete table 3 above. Report answers accurate to 4 decimal places. [3] (d) (i) State any expected values less than 5. [1] (ii) Describe what Juliana should do if there is an expected value that is less than 5. [1] (e) (i) Construct a table showing the modification from (d) above. 12 (ii) Find the degrees of freedom for the test. [1] (f ) (1) Find the test statistics for the table in (e). [2] The critical value of this test is 7.815. (ii) Hence, write down the conclusion to the test. Give a reason for your answer. [2] Q5) [Maximum mark: 14], ASL 5.2, ASL 5.3, ASL 5.7, ASL 2.4. A school club wanted to make hoodies to raise fund for a local children home. The total cost fin Swiss Franc (CHF) of producing x number of hoodies is modelled by f =0.2r3-0.6x3+4.3x+300. (a) (i) Find f'. [3] (ii) Sketch y = f' for OS .x. 121 (iii) Explain why if the total cost is minimized then no hoodie is produced. The average cost is g =- (b) Find g'. [2] (c) Find the number of hoodies that the club should produce to minimize the average cost. Give a reason for your answer. [4] (d) Hence, find the total cost that the club pays to minimize the average cost. [2]