A study was conducted in which rats showed compassion by freeing a trapped rat. In the...
A study was conducted in which rats showed compassion by freeing a trapped rat. In the study, all six of the six female rats showed compassion by freeing the trapped rat while 17 of the 24 male rats did so. We found a 95% confidence interval for the difference in proportion of rats showing compassion, using the proportion of female rats minus the proportion of male rats, to be 0.104 to 0.480. In testing whether there is a difference in these two proportions:
(a) What are the null and alternative hypotheses? Your answer should be an expression composed of symbols:
Let group 1 be the group of female rats showing compassion and let
group 2 be the group of male rats showing compassion.
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A study was conducted in which rats showed compassion by freeing
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Are Female Rats More Compassionate Than Male Rats? A study was conducted in which rats showed compassion by freeing a trapped rat. In the study, all Six of the Six female rats showed compassion by freeing the trapped rat while 17 of the 24 male rats did so. The data are available in the dataset CompassionateRats. Click here for the dataset associated with this question. Click here to access StatKey. (a) Give the correct notation for the difference in proportion...
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Are Female Rats More Compassionate Than Male Rats? A study was conducted in which rats showed compassion by freeing a trapped rat. In the study, all Six of the Six female rats showed compassion by freeing the trapped rat while 17 of the 24 male rats did so. The data are available in the dataset CompassionateRats. Click here for the dataset associated with this question. Click here to access StatKey. (a) Give the correct notation for the difference in proportion...
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Question Help Instructor-created question A study was conducted to determine the proportion of people who dream in black and white instead of color Among 304 people over the age of 55, 64 dream in black and white, and among 282 people under the age of 25, 13 dream in black and White. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for...
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this interval, which one of the null hypotheses below (versus a
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