A random sample of 14 nursing students from Group 1 resulted in a mean score of 61.2 with a standard deviation of 6.8. A random sample of 18 nursing students from Group 2 resulted in a mean score of 66.3 with a standard deviation of 3.6. Can you conclude that the mean score for Group 1 is significantly lower than the mean score for Gro

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

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step-by-step explanation: