Please provide a step-by-step explanation and please refrain from using any sort of software in your explanation, as I won't be able to use any software during my exam. If you can please use statistical calculators that'd be appreciated as I have a Casio FX-9750 GII

Question 3 The following table contains a random sample of 30 mutual funds taken from the 6,858 mutual funds reported in USA Today on February 2, 1999. For each mutual fund, "change" is the change in fund value from trading on February 1, 1999. This amount is given in dollars. Mutual Fund Change Advantus Bond -0.05 Aim Funds HYIdc 0.01 Amer Advant StrMod 0.00 Artision Funds SmCap -0.08 Calif Trust S&P500 -0.14 Colonial Balance -0.07 Colonial Income -0.02 Delaware Tx USA -0.01 Dimension EmgMkt 0.11 Dodge&Cox Stock -0.05 Dreyfus FMLA -0.02 Dreyfus OHMA -0.01 Eaton CTMB -0.02 Empire TfBond -0.04 Evergreen GLLeadB -0.09 Federated CAMunA -0.02 Federated MtgFdSS -0.02 Fidelity Chemical 0.41 FirstAmerican LgCap -0.01 Firth Third Balanced -0.07 Kemper AggGrB -0.02 Merrill Lynch CaMA -0.02 Nicholas Group Nich 0.22 North Amer GIEqB -0.04 One Group AstAl -0.04 Prudential Eqincm 0.09 Putnam Income -0.03 SoGen Funds Gold 0.09 Templeton GIBdA -0.04 Van Kamp EGB 0.00 Is there evidence that the mean fund value for mutual funds changed on February 1, 1999? Test this hypothesis using a level of significance of 0.05