Can you include degree of freedom in part B and not part D please

Espanol A rental agent claims that the mean monthly rent, J, for apartments on the east side of town is less than $700. A random sample of 9 monthly rents for apartments on the east side has a mean of $693, with a standard deviation of $16. If we assume that the monthly rents for apartments on the east side are normally distributed, is there enough evidence to conclude, at the 0.05 level of significance, that I is less than $700? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) State the null hypothesis Ho and the alternative hypothesis $1. O P X S P H :I (b) Determine the type of test statistic to use. t Degrees of freedom: 0=0 050 020 (c) Find the value of the test statistic. (Round to three or more decimal places.) 0+0 00 X 5 ? (d) Find the critical value. (Round to three or more decimal places.) 0 (e) Using the 0.05 level of significance, can we conclude that the mean monthly rent for apartments on the east side is less than $700? Yes ONo