To evaluate the effectiveness of a new type of plant fooddeveloped for tomatoes, an experiment was conducted in which arandom sample of 56 seedlings was obtained from a large greenhousehaving thousands of seedlings. Each of the 56 plants received 80.5grams of this new type of plant food each week for 9 weeks. Thenumber of tomatoes produced by each plant was recorded yielding thefollowing results: ?bar =31.08 . ?=4.325
A researcher has started with a new sample and a given degree ofconfidence that the average number of tomatoes the seedlingsproduced on the new plant food is between \"35.64258 and 37.63742\".Suppose the sample size and standard deviation are the same asgiven above. What alpha did the researcher use in the constructionof this statement?
