In a concrete production plant, the average concrete production of is projected as uo=5500 tons/month according to the production plan. In order to verify these data, the 12-monthly concrete production samples are randomly observed as in the following table. CALCULATE ZCAL and Zcr by using sample standart deviation S as an estimate population standart deviation o. Is there any difference between the average projected-concrete production and the average observed-concrete production with the level of significance (a)? a = 0.05, Montly concrete production samples (tons/month) 5 6 | 7 10 1 2 2340 3616 3 4 8 9 11 12 5250 6800 | 7950 | 4910 | 9025 | 7910 | 5820 || 4100 | 3000 1808

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Q.2
Concrete Production Plant
In a concrete production plant, the average concrete production of
is projected as µo=5500 tons/month according to the production
plan. In order to verify these data, the 12-monthly concrete
production samples are randomly observed as in the following
table. CALCULATE ZCAL and Zcr by using sample standart
deviation S as an estimate population standart deviation o. Is
there any difference between the average projected-concrete
production and the average observed-concrete production
with the level of significance (a)? a = 0. 05,
A
1 2
2340 3616
Montly concrete production samples (tons/month)
3 4 5 6 7 | 8 | 9
5250 6800 7950 | 4910 | 9025 | 7910 | 5820 4100 3000 1808
10 11 12
Transcribed Image Text:Q.2 Concrete Production Plant In a concrete production plant, the average concrete production of is projected as µo=5500 tons/month according to the production plan. In order to verify these data, the 12-monthly concrete production samples are randomly observed as in the following table. CALCULATE ZCAL and Zcr by using sample standart deviation S as an estimate population standart deviation o. Is there any difference between the average projected-concrete production and the average observed-concrete production with the level of significance (a)? a = 0. 05, A 1 2 2340 3616 Montly concrete production samples (tons/month) 3 4 5 6 7 | 8 | 9 5250 6800 7950 | 4910 | 9025 | 7910 | 5820 4100 3000 1808 10 11 12
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