According to an officer in the Health Care Financing Administration, the average annual expenditure on toiletries is RM110 per person in Malaysia. The data of 30 randomly selected persons are as follows and the standard deviation of the sample is 19.2152. 125 110 110 90 90 85 125 110 85 120 130 125 130 90 130 80 120 90 110 90 90 85 100 130 80 90 100 125 150 100 i. Find the sample mean of the data. Is there enough evidence to support the officer's claim at 0.02 level of significance? iii. What is the decision at a 0.2% significance level? ii.

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According to an officer in the Health Care Financing Administration, the average
annual expenditure on toiletries is RM110 per person in Malaysia. The data of 30
randomly selected persons are as follows and the standard deviation of the sample is
19.2152.
125
110
110
90
90
85
125
110
85
120
130
125
130
90
130
80
120
90
110
90
90
85
100
130
80
90
100
125
150
100
i.
Find the sample mean of the data.
Is there enough evidence to support the officer's claim at 0.02 level of significance?
iii. What is the decision at a 0.2% significance level?
ii.
Transcribed Image Text:According to an officer in the Health Care Financing Administration, the average annual expenditure on toiletries is RM110 per person in Malaysia. The data of 30 randomly selected persons are as follows and the standard deviation of the sample is 19.2152. 125 110 110 90 90 85 125 110 85 120 130 125 130 90 130 80 120 90 110 90 90 85 100 130 80 90 100 125 150 100 i. Find the sample mean of the data. Is there enough evidence to support the officer's claim at 0.02 level of significance? iii. What is the decision at a 0.2% significance level? ii.
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