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A chemical company is developing a new fertilizer for tomatoes and wants to know if tomatoes...

  1. A chemical company is developing a new fertilizer for tomatoes and wants to know if tomatoes grown with it are larger than the known mean weight of tomatoes grown with their current fertilizer, which is  = 1.2 pounds. They will feed 30 young plants with the new fertilizer and measure the mean weight of fruits produced by the plants. They will test their hypothesis at   0.05 significance level.
    (a) State the null and alternative hypotheses for this test.
    (b) What is the critical value for this hypothesis test?
    (c) At the conclusion of the experiment, mean weight of the treated tomatoes was 1.32 pounds and standard deviation was 0.24 pounds. What test should you conduct here?
    (d) What conclusion can be made base on the evidence?

Math   Statistics-And-Probability   
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