We are growing two rows of cucumber plants. The first row is treated with extra nitrogen in the soil. The second row is the control. The first row contains 17 plants and produces an average of 5.4 cucumbers per plant with a sample deviation of 1.3 cucumbers. The second row has 28 plants with an average of 5.1 cucumbers produced and a sample deviation of 2 cucumbers. Is it reasonable (95% confidence) to say that the nitrogen made a difference?

Please describe test you would use on calculator.