Hello, I have added my answers but they are incorrect, I am asking that you help me please, thank you.

The weights of pumpkins (in pounds) of 6 pumpkins are 5, 7, 7.5, 8, 8.5, and 8.75. The weights of the sample have a mean of = 7.458 and a standard deviation of s = 1.364. 1) What is the degrees of freedom? Check Show answer 2) What is the critical value when the significance level is or = 0.1? Type as: # ### Incorrect 0.453 The critical value that corresponds to cr = 0.1 and d f = 5 can be found in the table above Check Show answer 3) What is the margin of error? Type as: # ### Check Show answer 4) What is the 90% t-confidence interval for pumpkin weights? Type as: # ###. ####] Check Show answer A company that manufactures tools want to estimate the average output of a machine to within a margin of error of :2.1 units with 90% confidence. A preliminary pilot study found that the sample standard deviation of the machine's output is 7.3 units. 1) What is the preliminary estimate n*? Incorrect 0.54 Check Show answer 2) What is the sample size n? The critical value when d f = 32 is t* = 1.694 Check Show