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Qns 1) Describe 99% confidence interval of the mean monthly household expenditure in 2019 and 2020, respectively. Interpret and discuss whether Mr. Goh can conclude
Qns 1) Describe 99% confidence interval of the mean monthly household expenditure in 2019 and 2020, respectively. Interpret and discuss whether Mr. Goh can conclude that the household expenditure of Singapore residents in 2020 is lower than that in 2019. (Please refer to image below)
Average Monthly Household Expenditure (SG$) Household No. Year 2019 Year 2020 3100 3720 2 8250 5940 3 5430 5919 4 5900 5723 5 3900 3198 6 6300 7560 4800 5760 8 7400 6734 9 9210 8197 10 5950 6962 11 4390 3249 12 5520 3919 13 5810 4648 14 6360 5724 15 6490 7528 16 4290 3947 17 5550 4329 18 8280 8528 19 7360 6330 20 7810 6170 21 6745 7082 22 5630 4335 23 6530 4571 24 4570 5301 25 5790 6832 26 6390 6710 27 5210 4741 28 3670 2789 29 4420 4243 30 4690 5065 31 5630 5461 32 5910 4373Step by Step Solution
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