Of interest is whether the percent of managers at high tech inc. that pay over $8 per day for lunch is the same as the percent of technicians. sixty managers are surveyed and forty-six of them pay over $8 per day for lunch. one hundred forty-nine technicians are surveyed and ninety-eight of them pay over $8 per day for lunch. the hypothesis test to use is group of answer choices matched or paired samples two proportions independent group means, population standard deviations unknown independent group means, population standard deviations known.

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.