Before heading to the beach in the afternoon in mid-winter, hardy Sydney surfers are interested in what

Question:

Before heading to the beach in the afternoon in mid-winter, hardy Sydney surfers are interested in what the temperature is likely to be given the temperature at breakfast time. Afternoon temperatures, however, are also likely to be affected by other meteorological factors, such as precipitation and sunshine.

The following data relate to daily temperatures in a recent winter month in Sydney at 9.00 am and 3.00 pm, as well as rainfall in the 24 hours to 9.00 am, evaporation in the 24 hours to 9.00 am and the hours of bright sunshine in the 24 hours to midnight the day before. Using these data, develop a regression model to predict the 3.00 pm Sydney temperature in July using the predictor variables of the temperature at 9.00 am and the amounts of rainfall, evaporation and sunshine. Discuss the results, highlighting both the significant and insignificant predictors.