The standard deviation in the pressure required to open a certain valve is known to be o = 1.3 psi. Due to changes in the manufacturing process, the quality control manager feels that the pressure variability has been reduced. (a) State the null and alternative hypotheses in words. (b) State the null and alternative hypotheses symbolically (c) Explain what it would mean to make a Type | error. (d) Explain what it would mean to make a Type II error O B. The standard deviation in the pressure required to open a certain valve is different from 1 3 psi. O C. The standard deviation in the pressure required to open any valve is 1.3 psi O D. The standard deviation in the pressure required to open a certain valve is less than 1 3 psi (b) State the hypotheses symbolically psi H, psi (Type integers or decimals. Do not round.) (c) What would it mean to make a Type | error? The manager the hypothesis that the pressure variability is psi, when the true pressure variability is psi (Type integers or decimals. Do not round.) (d) What would it mean to make a Type II error? The manager the hypothesis that the pressure variability is psi. when the true pressure variability is psi (Type integers or decimals. Do not round.) Next 4:14 PM Type here to search O 55.F Sunny ~ 0 @ @ () 12/16/2021