Chapter 11: Q.39 (page 657)
Is this a right-tailed, left-tailed, or two-tailed test? Explain why.
Short Answer
It is a right-tailed test.
Chapter 11: Q.39 (page 657)
Is this a right-tailed, left-tailed, or two-tailed test? Explain why.
It is a right-tailed test.
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A fisherman is interested in whether the distribution of fish caught in Green Valley Lake is the same as the distribution of fish caught in Echo Lake. Of the 191 randomly selected fish caught in Green Valley Lake, 105 were rainbow trout, 27 were other trout, 35 were bass, and 24 were catfish. Of the 293 randomly selected fish caught in Echo Lake, 115 were rainbow trout, 58 were other trout, 67 were bass, and 53 were catfish. Perform a test for homogeneity at a 5% level of significance.
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5% significance level. Did you expect the result you obtained?
How many passengers are expected to travel between and miles and purchase second-class tickets?
Teachers want to know which night each week their students are doing most of their homework. Most teachers think that students do homework equally throughout the week. Suppose a random sample of 56 students were asked on which night of the week they did the most homework. The results were distributed as in Table 11.8.
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