Your team is required to obtain a sample of at least three similar products (eg. Instant rice: Brahim's, Sharifah, Suhana and Mexican). Study the products in terms of weight, volume, or any appropriate parameter that you are interested.

Data collection:measure at least 10 observations for each product then record the measurements in Table 1. (NOTE: This is for the purpose of experiencing data collection only. It is not exactly the correct sampling process in statistics).

1. Record the statistic of the product and fill in Table 1. (4 marks)

Table 1

	Product 1	Product 2	Product 3
	Parameter	Parameter	Parameter
Sample, n
1
2
3
4
5
. . .
N

1. Key in all data into SPSS and answer the following questions using SPSS:
   1. State the response variable that you are studied. (1 mark)
   2. From each of the product, calculate the point estimator for the parameter mean. (4 marks)
   3. Get a 95% confidence interval for each parameter mean. Interpret. (9 marks)
   4. Get a 95% confidence interval for any pair differences of the product. (7 marks)
   5. Based on the pair you had chosen in part 2d, test whether the difference mean exist between the two groups at 5% significance level? (9 marks)
   6. At 5% significance level, is there any difference of the parameter mean among the three products? (5 marks)
   7. By using the multiple comparison test, state which product has difference mean at 5% significance level. (11 marks)