Back to 10.1 Two Population Means with Unknown Standard Deviations

10.1 Exercise 25

Avg difficulty 2.5

In a random sample of 100 forests in the United States, 56 were coniferous or contained conifers. In a random sample of 80 forests in Mexico, 40 were coniferous or contained conifers. Is the proportion of conifers in the United States statistically more than the proportion of conifers in Mexico?

OpenStax Statistics, 10.1 Two Population Means with Unknown Standard Deviations, exercise 25

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