A Milk X is healthier than milk Y.B Milk X turns bad more easily than milk Y.C Milk X contains more fat than milk Y.D Milk X is good for babies and milk Y is good for old people. 相关知识点: 试题来源: 解析 A 首先要理解 “hypothesis” 这个词的意思,它是 “假设、假说” 的意思...
Protecting children from the impacts of toxic stress requires capacity building, not simply the provision of information and support, for their caregiversProtecting children from the impacts of toxic stress requires capacity building, not simply the provision of information and support, for their ...
Which of the following is a null hypothesis? Abundance of woodpeckers increases in the summer. Addition of nitrogen to a stream will increase algal growth. Algal growth in a stream where nitrogen has been added is not significantly different from a c...
Which of the following statement is a null hypothesis?? A five-percent increase in price will adversely affect the sale of this product.;Power structures have a great effect on the media product.There are no gender differences in the choice of tourist destinations.Milk drinking is positively rel...
Which of the following null hypothesis would require using a two-tailed test? a. H0:μ≠25 b. H0:μ<25 c. H0:μ>25 d. H0:μ=25Two-tailed test.Two tailed test is conducted when the researcher needs to compare that the population...
A. rejecting a true null hypothesis. B. rejecting a true alternative hypothesis. C. failing to reject a false null hypothesis. 相关知识点: 试题来源: 解析 C The Type Ⅱ error is the error of failing to reject a null hypothesis that is not true.反馈...
In hypothesis testing of two groups, which of the following is a null hypothesis?You speak, write a letter, or make a telephone. Your words carry a message. People communicate with words. Do you think you can communicate without words? A smile on your face shows you are happy or...
Which of the following is the correct sequence of events for testing a hypothesis?A. State the hypothesis, select the level of significance, compute the test statistic, formulate the decision rule, and make a decision.B. State the hypothesis, formulate the decision rule, select the level of ...
The "hypothesis" in scientific research is very important. Which of the following words is the opposite of "hypothesis"? A. theory B. fact C. experiment D. conclusion 相关知识点: 试题来源: 解析 B。解析:hypothesis意思是假设。选项A中theory是理论的意思,和假设不是反义关系;选项B中fact是事实,...
Which of the following best describes the organization of the passage as a whole? A.A phenomenon is described, and an interpretation is offered. B.A claim is made, and the corroborating evidence is evaluated. C.A hypothesis is presented and undermined by recent findings. D. A contrast ...