Could u please hlpe me with the mcqs

QUESTION 6. A statistic a) Does not have a sampling distribution. b) Is a function of the population mean. c) Is used to test hypotheses about unknown parameters. d) Contains unknown parameters in its computation. QUESTION 7. Write the name of the appropriate sampling distribution or sample test statistic for: a) The mean of a normal distribution with known variance? b) The proportion of defectives in a nite population? c) The ratio of MSrmmmJMSW'? StitchW d) The quantity, k Ail-1014132 '? nkl QUESTION 8. Statistical quality control deals principally with a} Customer needs b) Design criteria c} Reduction of variability d) Public perception