The "Freshman 15" refers to the belief that college students gain 15 lb (or 6.8 kg) during their freshman year. Listed in the accompanying table
are weights (kg) of randomly selected male college freshmen. The weights were measured in September and later in April. Use the listed paired sample data, and assume that the samples are simple random samples and that the differences have a distribution that is approximately normal. Complete parts (a) through (c). ... Question content area top right Part 1 September 66 65 94 93 56 71 61 67 69 April
71 71 105 88 53 69 60 67 69 Question content area bottom Part 1 a. Use a
0.05 significance level to test the claim that for the population of freshman male college students, the weights in September are less than the weights in the following April. In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the April weight minus the September weight. What are the null and alternative hypotheses for the hypothesis test? H0: μd equals= 00 kg H1: μd greater than> 00 kg (Type integers or decimals. Do not round.) Part 2 Identify the test statistic. t=enter your response here (Round to two decimal places as needed.)