A researcher wants to test the claim that the proportion of men and women who exercise regularly is not the same. He finds that
42 of 65 randomly selected men and 34 of 52 randomly selected women report exercising regularly. A 90% confidence interval for the difference in population proportions is (−0.154, 0.138). Which of the statements gives the correct outcome of the researcher's test of the claim? Because the confidence interval includes zero, the researcher can conclude the proportion of men and women who exercise regularly is the same.
Because the confidence interval includes zero, the researcher can conclude the proportion of men and women who exercise regularly may be the same.
Because the confidence interval includes zero, the researcher can conclude the proportion of men and women who exercise regularly is different.
Because the confidence interval includes more positive than negative values, the researcher can conclude that a greater proportion of men than women exercise regularly.
The researcher cannot draw a conclusion about a claim without performing a significance test.
Because the confidence interval includes zero, the researcher can conclude the proportion of men and women who exercise regularly may be the same.
Explanation:
When constructing a two-proportion z-interval, it is important to look for the value zero. A value of zero in the interval shows there is no difference in the proportions between the two populations.
If the interval contains all positive numbers, it implies the true proportion for sample 1 is greater than that for sample 2. If the interval contains all negative numbers, it implies the true proportion for sample 1 is less than that for sample 2.
Explanation: A mutation can help an organism survive in a particular environment. A mutation is a change in the nucleotide sequence of an organism. A mutation can be of three types - beneficial, harmful or neutral. A mutation is considered to be beneficial when it produces a variation that helps the organism to better adapt to its environment.
in my opinion, I wouldn't use any of them, it's only best if you use the book itself. Both the website and the college paper are formed on people's opinions. If this was something that was given to you as a test question, your best bet would be the college paper. The college paper would be filled with Shakespeare's theme and symbolism and some of these themes that he uses are usually not easy to find, especially is your reading the modern version.
Arguments used in defending against a criminal would be 1) Infancy 2) Duress 3) XYY chromosome (makes men men aggressive), 4) Necessity, and 5) Entrapment (forced to commit a crime).
C, details that help readers visualize the settings better. A wouldn't work because it doesn't help the setting, B doesn't help the setting either and D would only add more confusion so UT would have to be C by process of elimination.
