Ahypothesis test for a population mean is to be performed at the 5% level of significance. the population standard deviation is known. the hypotheses are h0: μ = 80 ha: μ ≠ 80. a 95% confidence interval for μ is also constructed. true or false, if 80 lies within the 95% confidence interval, then the null hypothesis will be rejected?

a. true

b. false

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212