Question

according to an advertisement, a strain of soybeans planted on soil prepared with a specified fertilizer treatment has a mean yield of 103 bushels per acre. 15 farmers will belong to a cooperative plant the soybeans in soil prepared as specified. Each uses a 40 acre plot and records to mean yield per acre. the mean and variance for the sample of 15 farms are x_bar=92 and s^2=285. test hypothesis to determine if the mean yield for the soybeans is not equal to 103 bushels per acre. Use a=0.5

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Answer 1