Acompany has developed a wristband for monitoring blood sugar levels without requiring direct blood samples. it is interested in demonstrating the accuracy of the device for governmental approval and has decided to test the claim "the glucose level reported by the wristband is within 10% of a standard blood test result." which of the following data collection processes would be appropriate? a. choose a random sample of employees at lunchtime and measure their blood sugar using both the wristband and a standard blood test. b. choose a random sample of people from the local area and random times throughout the day and measure their blood sugar using both the wristband and a standard blood test. choose a random sample of people from the local area and random times and measure their blood sugar using the wristband. c. choose another random sample of people and random times and measure their blood sugar using the standard blood test. d. go to a hospital and have the doctors choose a random sample of patients to be tested at random times using both the wristband and the standard blood test

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000