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Mathematics, 19.10.2021 22:40 Kurlyash
A study was designed to investigate the effects of two variables−(1) a student's level of mathematical anxiety and (2) teaching method−on a student's achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 340 with a standard deviation of 30 on a standardized test. Assuming no information concerning the shape of the distribution is known, what percentage of the students scored between 280 and 400?
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A study was designed to investigate the effects of two variables−(1) a student's level of mathematic...
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