Help with these from my chapter 17 assignment please

For students who rst enrolled in two year public institutions in a recent semester, the proportion who earned a bachelor's degree within six years was 0.392. The president of a certain college believes that the proportion of students who enroll in her institution have a lower completion rate. (3) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type I error. (c) Explain what it would mean to make a Type II error. (a) State the hypotheses. H0: EEG H1: E (Type integers or decimals. Do not round.) Three years ago, the mean price of an existing single-family home was $243,782. Areal estate broker believes that existing home prices in her neighborhood are lower. (3) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type I error. ((2) Explain what it would mean to make a Type II error. (a) State the hypotheses. H0: V V $ H1: V V $ (Type integers or decimals. Do not round.) The standard deviation in the pressure required to open a certain valve is known to be 0' = 0.6 psi. Due to changes in the manufacturing process, the quality-control manager feels that the pressure variability has been reduced. (5) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type I error. (6) Explain what it would mean to make a Type II error. (a) State the hypotheses. H0: V V H]: v v _ (Type integers or decimals. Do not round.) A can of soda is labeled as containing 12 fluid ounces. The quality control manager wants to verify that the filling machine is neither over-filling nor under-filling the cans. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses that would be used to determine if the filling machine is calibrated correctly. Ho H1 (Type integers or decimals. Do not round.)According to a food website, the mean consumption of popcorn annually by Americans is 54 quarts. The marketing division of the tood website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below. (a) Determine the null and alternative hypotheses that would be used to test the effectiveness of the marketing campaign. H0: v v D H1: 1 v E (Type integers or decimals. Do not round.)