Solar energy generation along highways. Refer to the International Journal of Energy...

Solar energy generation along highways. Refer to the International Journal of Energy and Environmental Engineering (Dec. 2013) study of solar energy generation along highways, Exercise 7.45 (p. 397). Recall that the researchers compared the mean monthly amount of solar energy generated by east-west and north-south oriented solar panels using a matched-pairs experiment. However, a small sample of only five months was used for the analysis. How many more months would need to be selected in order to estimate the difference in means to within 25 kilowatt hours with a 90% confidence interval? Use the information provided in the SOLAR file to find an estimate of the standard error required to carry out the calculation.

Reference: Exercise 7.45

Solar energy generation along highways. The potential of using solar panels constructed above national highways to generate energy was explored in the International Journal of Energy and Environmental Engineering (Dec. 2013). Two-layer solar panels (with 1 meter separating the panels) were constructed above sections of both eastwest and north-south highways in India. The amount of energy (kilowatt hours) supplied to the country’s grid by the solar panels above the two types of highways was determined each month. The data for several randomly selected months are provided in the table. The researchers concluded that the “two-layer solar panel energy generation is more viable for the north-south oriented highways as compared to east-west oriented roadways.” Do you agree?