linaaaa0496
27.04.2021 •
Mathematics
A market research company conducted a survey of two groups of students from different schools. They found that students from school A spent an average of 90 minutes studying daily, while the students from school B spent an average of 75 minutes daily. They want to find out if the difference in the mean times spent studying by the students of the two schools is statistically significant. What sets shows the correct null hypothesis and alternative hypothesis?
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Ответ:
well 6 3/4 is 6.75 as a decimal and 3 6/7 as a decimal is 3.85 and so 6.75 divided by 2 is 3.37 so she got a little past halfway but if you divide them bothe then you get 1.75 and that as a fraction is 3/4 not sure this is correct but maybe hopefully
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