Another study conducted on 55 randomly sampled HS students in Seattle found that these students spent an average of 4.41 hours/day on their phones with a sample standard deviation of 1.83. What is a 95% confidence interval on the average number of hours/day spent by HS students in Seattle?
A group of researchers would like to see whether people are more likely to adhere to the Mediterranean diet if they attend a weekly workshop on the Mediterranean diet than if they are given a Mediterranean diet cookbook. To recruit study participants, they host a website offering a free diet intervention to anyone who signs up.
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Considering the information that you are given, what was the sample standard deviation of the number of hours that the high schoolers in the sample spent on their phones?
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Another study conducted on 55 randomly sampled HS students in Seattle found that these students spent an average of 4.41 hours/day on their phones with a sample standard deviation of 1.83. What is a 95% confidence interval on the average number of hours/day spent by HS students in Seattle?
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