Japanese Sturgeon Is A Subspecies Of The Sturgeon Family Indigenous To Japan And The Northwest Pacifc In A Particular F 1 (47.25 KiB) Viewed 202 times
Japanese Sturgeon Is A Subspecies Of The Sturgeon Family Indigenous To Japan And The Northwest Pacifc In A Particular F 2 (57.42 KiB) Viewed 202 times
Japanese sturgeon is a subspecies of the sturgeon family indigenous to Japan and the Northwest Pacifc. In a particular fish hatchery newly hatched baby Japanese sturgeon are kept in tanks for several weeks before being transferred to larger ponds. Dissolved oxygen in tank water is very tightly monitored by an electronic system and rigorously maintained at a target level of 6.5 milligrams per liter (mg/l). The fish hatchery looks to upgrade their water monitoring systems for tighter control of dissolved oxygen. A new system is evaluated against the old one currently being used in terms of the variance in dissolved oxygen Thirty-one water samples from a tank operated with the new system were collected and 16 water samples from a tank operated with the old system were collected, all during the course of a day. The samples yield the following information New Sample 1 ni = 31, si = 0.0121 Old Sample 2: n = 16, s = 0.0319 Test, at the 5% level of significance (that is with a = 0.05). whether the data provide sufficient evidence to conclude that the new system will provide a tighter control of dissolved oxygen in the tanks. Note that the hypotheses under consideration are as follows. H: =1 | versus H, :
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