Researchers examined a sample of young adults and found that there was a greater likelihood of...
Researchers examined a sample of young adults and found that there was a greater likelihood of depression (as measured on a numerical scale), the more time that was spent per day using social media, such as Facebook. To test for the significance of their findings, researchers should use:
Homework Answers
To test for the significance of their finding the researchers should use two sample independent T test ( one-sided) or they may also use correlation to find increasing use of social media leads to increase in depression but since we have to find the significance relationship between the two then it is better to use the inference method that is T test
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Researchers examined a sample of young adults and found that
there was a greater likelihood of...
In a study on the physical activity of young adults, pediatric researchers measured overall physical activity...
In a study on the physical activity of young adults, pediatric researchers measured overall physical activity as the total number of registered movements (counts) over a period of time and then computed the number of counts per minute (cpm) for each subject. The study revealed that the overall physical activity of obese young adults has a mean of mu equals 320 cpm and a standard deviation of sigma equals 90 cpm. In a random sample of n equals 100 obese...
Researchers doing a study comparing time spent on social media and time spent on studying randomly...
Researchers doing a study comparing time spent on social media and time spent on studying randomly sampled 200 students at a major university. They found that students in the sample spent an average of 2.3 hours per day on social media and an average of 1.8 hours per day on studying. If all the students at the university in fact spent 2.2 hours per day on studying, with a standard deviation of 2 hours, the shape of the sampling distribution...
4.9.165 Question Help In a study on the physical activity of young adults, pediatric researchers measured...
4.9.165 Question Help In a study on the physical activity of young adults, pediatric researchers measured overal physical activity as the total number of registered movements (counts) over a period of sme and then computed the number of counts per minute (apm) for each subject. The study revealed that the overall physical activity of ofbese young adults has a mean of u 320 epm and a standard deviation of a 80 cpm. In a random sample of n 100 obese...
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Suppose across all cities in Florida, the proportion of people young adults (ages 20 to 30)...
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A poll found that in a random sample of 1000 American adults, 720 indicated that they...
A poll found that in a random sample of
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(Round your test statistic to two decimal places and your P-value
to four decimal places.)
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The first two questions refer to the following information: Researchers developed an online tool to help...
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Researchers doing a study comparing time spent on social media and time spent on studying randomly sampled 200 students at a major university. They found that students in the sample spent an average of 2.3 hours per day on social media and an average of 1.8 hours per day on studying. If all the students at the university in fact spent 2.2 hours per day on studying, with a standard deviation of 2 hours, the shape of the sampling distribution...
4.9.165 Question Help In a study on the physical activity of young adults, pediatric researchers measured overal physical activity as the total number of registered movements (counts) over a period of sme and then computed the number of counts per minute (apm) for each subject. The study revealed that the overall physical activity of ofbese young adults has a mean of u 320 epm and a standard deviation of a 80 cpm. In a random sample of n 100 obese...
To measure the success of the latest treatment for iPod-related deafness among young adults, researchers measured the sound sensitivity of 100 young adults by having them stand 20 feet away from a speaker playing "Slim Whitman Favorite Hits." It was found that 35% of the sample could not repeat any song lyrics from the CD. What is the variance of this distribution? o A (20)(.35) o B (20)(.65) o C (20)6.35)(.65) O D (-35)(65) o E (100)(-35) 0 F (100)(.65)...
Suppose across all cities in Florida, the proportion of people young adults (ages 20 to 30) who have attended a roller derby match is 0.28. Tyree believes that the proportion of young adults in his city who have attended a roller derby match is greater than the state population proportion. He decides to test this idea using a one-sample z-test for a population proportion using a significance level of α-0. 1 0 He conducts a survey of 225 randomly selected...
A poll found that in a random sample of
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that the proportion of American adults who oppose reinstatement of
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(Round your test statistic to two decimal places and your P-value
to four decimal places.)
A poll found that in a random sample of 1000 American adults, 720 indicated that they...
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