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.
Answer:
Assuming that more physical contact is associated with higher relationship satisfaction, this study is a demonstration of predictive validity.
Explanation:
The survey above is an example of predictive validity. This term refers to a research that has the ability to predict the future of individuals, based on the analysis of some factors and characteristics that these individuals have. This can be seen in the question above because the researcher predicts the future satisfaction of couples in a relationship based on the amount of physical contact they have had.
Answer:
The best answer from the options given, to the question: How do polls affect presidential elections, would be: Polls identify the top candidates and the media interviews those candidates.
Explanation:
Polls are a means by which elections can be affected and swayed in favor of a candidate, a political party, or a group, because they tend to show the upward trends, which means, it will display, in a campaign, who is at the top in voters´ intention to vote, and thus, might sway other voters to choose either of those at the top. When a campaign takes place, especially for elections, researchers, and pollers, seek to help the public to make the better choice by finding out who is leading the intention of vote in voters. By doing this, polls may allow the public to know who has a chance of being elected, and thus sway support from the public to one, or another of those candidates. The media, of course, will focus their interviewing efforts on those who stand a chance of being elected. Which is why the answer is the one above.
Answer:
Because she cares about her sister.
Honestly, without more information there isn't a better answer.
Hope this sorta helps.
