2. Pertimbangkan sampel rawak markah berikut untuk kelas Matematik Perniagaan. Consider the following random samples of scores for Business Mathematics class. 80 35 42 86 91 71 67 58 55 70 46 66 69 36 44 45 170 66 58 54 49 88 47 27 75 159 135 78 40 55 71 61 35 82 60 72 69 64 53 81 54 78 40 69 71 38 75 85 87 88 d) Nyatakan bentuk taburan data. State the shape of data distribution. O a. Bell-shaped O b. Skewed left O c. Skewed right3. Pengurus cawangan ZY Stores meletak jawatan, dan tiga jurujual di cawangan itu sedang dipertimbangkan untuk jawatan itu. Ketiga-tiganya mempunyai tempoh perkhidmatan, pendidikan dan sebagainya yang hampir sama. Untuk membuat keputusan, adalah dicadangkan supaya setiap rekod jualan bulanan mereka diperiksa. Lakukan analisis varians (ANOVA) untuk melihat sama ada terdapat sebarang perbezaan dalam jualan bulanan dalam kalangan jurujual . (Gunakan a = 0.05). The manager of a branch of ZY Stores resigned, and three salespeople at the branch are being considered for the position. All three have about the same length of service, education and so on. In order to make a decision, it was suggested that each of their monthly sales record be examined. Perform an analysis of variance (ANOVA) to see if there is any difference in monthly sales among the salespeople . (Use a = 0.05). Jualan Bulanan Monthly Sales (RM'000) Ms. Alina Mr. Sufian Ms. Suzi 15 15 19 10 10 12 9 12 16 5 11 16 16 12 12 a) i- Nyatakan hipotesis nol State the null hypothesis a. The treatment means are not the same O b. The treatment means are same O c. One pair of treatment mean is same