Author Question: A group of home gardeners want to test whether the type of soil used to grow heirloom tomatoes has ... (Read 143 times)

humphriesbr@me.com · **on:** Apr 14, 2020

A group of home gardeners want to test whether the type of soil used to grow heirloom tomatoes has an effect on the number of tomatoes harvested. Gardeners randomly assigned tomato plants to be grown in soil with no fertilizer, commercial plant food, and homemade compost. All other growing conditions were kept the same. Forty plants were assigned to each group. At the end of the growing season the number of tomatoes harvested was counted. Assume that all other conditions for the ANOVA test have been met.

State the null and alternative hypothesis.
◦ H₀: The mean number of tomatoes harvested differs by type of fertilizer used.
H_a: There is no difference in the mean number of tomatoes harvested by type of fertilizer used.
◦ H₀: μ_none = μ_commercial = μ_compost
H_a: The mean number of tomatoes harvested differs by type of fertilizer used..
◦ H₀: μ_none < μ_commercial < μ_compost
H_a: There is no difference in the mean number of tomatoes harvested.
◦ None of these

yifu223 · **Reply #1 on:** Apr 14, 2020

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