ReaLily
11.02.2021 •
Mathematics
Badcock and Marks (2010) review survey data from the 2003-2005, and obtained an average of mean =14 hours per week spent studying by full-time students at four-year colleges in the United States. To determine whether this average has changed in recent years, a researcher selected a sample of n=64 of today's college students and obtained an average of M=12.5 hours. If the standard deviation for the distribution is =4.8 hours per week, does this sample indicate a significant change in the number of hours spent studying use alpha =. 05
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