PLEASE HELP!!
Colonial Funds claims to have a bond fund which has maintained a mean share price of $10.00. They claim that the standard deviation of the share price is 0.19. To test this claim, the investor randomly selects 22 days during the last year. He finds an average share price of $9.80 with a standard deviation of 0.1837. Can the investor conclude that the share price of the bond fund varies from Colonial Funds claims at α=0.05?
Step 1 of 5 : State the hypotheses in terms of the standard deviation. Round the standard deviation to four decimal places when necessary.