Over the past 24 months, a mutual fund has an average monthly return of 1.6%, with a sample standard deviation of 2.1%. The fund's stated goal is to achieve a monthly return of 1.8%. Assuming monthly returns are normally distributed, calculate the appropriate test statistic to test if the fund significantly deviated from its goal. Enter answer accurate to three decimal places. Bonus thinking question: can you reject the hypothesis that the fund met its target at a 5% level. (Use T.INV() spreadsheet function to find the rejection points for your desired test probability)