Zoologists studying two populations of tigers conducted a two-sample t-test for the difference in means to investigate whether the tigers in population X weigh more, on average, than the tigers in population Y. Two independent random samples were taken, and the difference between the sample means was calculated. All conditions for inference were met, and the test produced a p-value of 0.02.
Which of the following is a correct interpretation of the p-value?
The probability that the mean weight for tigers in population X is greater than that for population Y is 0.02.
A
The probability that the mean weight for tigers in population X is equal to that for population Y is 0.02.
B
Assuming that the mean weights for populations X and Y are equal, the probability of observing a difference equal to the sample difference is 0.02.
C
Assuming that the mean weights for populations X and Y are equal, the probability of observing a difference as great or greater than the sample difference is 0.02.
D
Answers
Answer:D
Explanation:
The p-value is a statistical metric used it to test a hypothesis against actual facts, and its calcaulation can be defned as follows:
P-Value calculation:The P-value is indeed the possibility of getting a statistical result that is at least as extreme as the observed result, given that the null hypothesis is true.
The null hypothesis assumes that tiger weight in population X equals tiger weight in population Y.The alternative hypothesis is that the weight of tigers in population X is higher than that of tigers in population Y.So, with a p-value of 0.02 for the test, As the proper interpretation of the p-value is If indeed the mean weights of populations X and Y are equal, the probability of seeing a difference equal to or larger than the sample difference is 0.02.Therefore the final answer is "Option D".
Find out more about the p-value here:
brainly.com/question/14790912
Related Questions
Using ideas from Simon Bolivar’s 1815 Jamaican Letter (attached below), address the reasons behind his calls for independence as well as his concerns.
Answers
Answer:
Explanation:
Simon Bolivar’s 1815 Jamaican Letter dealt w the inequality n unrest in Jamaica. he did not believe the current colonial govt could solve the problems. his view was summarized in this statement "we are threatened with the fear of death, dishonor, and every harm; there is nothing we have not suffered at the hands of that unnatural stepmother-Spain."
he listed the independence movements in other Latin American countries n concluded dat independence was the only solution.
What part of the brain does learning a new language strengthens? action. thought. memory. all of the above
Answers
Answer:
thought im 99 percent shure
what makes radio a potent tool for information dissemination of communication
Answers
The correct answer to this open question is the following.
Although there are no potions attached we can answer the following.
What makes radio a potent tool for information dissemination of communication is the fact that radio can directly get to millions of people in the United States territory and abroad using radio waves.
Since its creation in 1921, radio has been an effective way to inform and transmit news and important messages to citizens. Experts consider radio to be the ultimate instrument in the dissemination of public messages for its capacity to reach masses simultaneously, no matter the distance or their location.
Through the use of radio, the government and public institutions are capable of promoting the proper awareness of important news and situations in the political and economic sphere so people can be informed and could create public opinion and participate in politics.