Null and alternative hypotheses
For any generic t-test for independent groups, write down the null and alternative hypotheses that are appropriate at alpha =.05 (2 tail). Write a verbal and an equation version.
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From an edge of the 1000-foot cliff, angles of depression to two cars in valley below are 21* and 28*. How far apart are cars? Round the answer to nearest 0.1 ft.
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