In the estimation of population parameters, what is the significance of keeping measurement error and sampling error in mind? a. They are fundamental concepts that affect the reliability and validity of the inference made from the sample to the population. b. They ensure the exact measurement of the population mean without inference. c. These errors highlight the unnecessary complexity of sampling techniques. d. These errors negate the need for a sample mean to estimate the population mean.The alternative hypothesis, symbolized by H1, is a claim about the population parameter that directly opposes the null hypothesis. a. False b. True