In order to estimate the difference between the average miles per galloe of two different models of automobles, samples are taken and the following information is collected. (a) At genc confidence, develop an interval eatimate for the difference between the average milles per gallon for the two models. (Use Moifel A - Model B. Mound your answers to decimal place.) (b) Is there conducive evidence to indicate that one model gets a higher miles per gatlon than the othen? Whiy or atiy not? Explain Because the range of the interval is from negatie to positive, it indicates that there is conclushe evidence (at 98% confidence) that Model 8 has a larger mean. Elecause the range of the interval is from positive to positive, it indicates that there is conclusive evidence (at 98% confidence) that Model a has a larger mean. Because the mange of the interval is from positive to positive, it indicates that these is cenclusive evidence (at 98\% confidence) that Modei A has a larger mean. Blecause the range of the interval is from negathe lo positive, it indicates that there is conclusive fividence (at 98% confidence) that Model A has a larger mean