Window Help unlv.instructure.com + 0 WAttending Event STAT 391 1005 - 2022 Sprg Event (150050) The margin of error for our 95% confidence interval would decrease The margin of error for our 95% confidence interval would increase The margin of error for our 95% confidence interval would stay the same since the level of confidence has not changed Question 6 1 pts The pH measurements of water specimens from various locations along a given river basin are Normally distributed with mean 10 and standard deviation 0.5. You take water specimens from 15 randomly selected locations on this river basin. What is the probability that the mean pH measurement of these 15 specimens is less than or equal to 11? 0.8768 0.5626 0.7082 1 1 pts Question 7 MAY 12