A pet store owner believes that dog owners spend more on average than cat owners on their pets. The owner randomly records the sales of 40 customers that said they only owned dogs and 40 customers that said they only owned cats. What is the correct decision and summary based on the Excel output below? Assume the populations are approximately normally distributed with unequal variances. t-Test: Two-Sample Assuming Unequal Variances DogCatMean57.169553.82225Variance588.088573.7205Observations4040Hypothesized Mean Difference0 df78 t Stat0.6211 P(T≤t) one-tail0.2682 t Critical one-tail1.6646 P(T≤t) two-tail0.5363 t Critical two-tail1.9908 What is the correct test statistic?
