For an anova comparing three treatment conditions, what is stated by the alternative hypothesis (h1)? there are no differences between any of the population means. at least one of the three population means is different from another mean. all three of the population means are different from each other. none of the other choices is correct.

The correct answer is "at least one of the three population means is different from another mean". In population anova comparing studies the null hypothesis states that the mean of all of the studied treatment conditions are equal. The alternative hypothesis should be the contrary of which was is stated in the null hypothesis, which is at least one mean is different from the others.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.

answer; environmental science;