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Mathematics, 05.05.2020 19:31 gwendallinesikes
Suppose the first population is all face-to-face meetings held in March 2020, the second population is all Zoom meetings held in March 2020, and the parameter of interest is ] - H2 the difference in the mean length of all face-to-face mectings and the mean length of all Zoom meetings. The meeting lengths are measured in minutes. For both face-to-face meetings and Zoom meetings the distributions of meeting times are skewed heavily to the right due to some meetings that are very long. Suppose for all face-to-face meetings in March 2020 the mean meeting time was 47.4 minutes with a standard deviation of 7.9 minutes. Additionally, suppose for all Zoom meetings in March 2020 the mean meeting time was 48.6 minutes with a standard deviation of 8.9 minutes. If a simple random sample of 52 face-to-face meetings in March 2020 is selected and stack X subscript 1 with bar on top.1. Consider the sampling distribution determined in part (a). 2. What is the probability that X - X will be less than 0 minutes?
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Suppose the first population is all face-to-face meetings held in March 2020, the second population...
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