Mathematics, 03.12.2019 01:20 stjuliendeja

# Asurvey conducted five years ago by the health center at a university showed that 18% of the students smoked at the time. this year a new survey was conducted on a random sample of 200 students from this university, and it was found that 50 of them smoke. we want to find if these data provide convincing evidence to suggest that the percentage of students who smoke has changed over the last five years. what are the test statistic (z) and p-value of the test?

Answers: 3

Mathematics, 04.02.2019 23:47

20 points! asap! a is known to be 6,500 feet above sea level; ab = 600 feet. the angle at a looking up at p is 20°. the angle at b looking up at p is 35°. how far above sea level is the peak p? find the height of the mountain peak to the nearest foot. height above sea level =

Answers: 1

Mathematics, 04.02.2019 17:50

Your town charter states that at least 20% (0.20) of the town council members must be local business owners. a. the town council currently has 6 business owners out of a total of 30 members. write this ratio as a decimal. round to the nearest hundredth. b. does this ratio satisfy the 20% rule?

Answers: 2

Mathematics, 03.02.2019 03:21

Find the quotient and domain restrictions of x^2-2x-3/x^2+2x-8 divided by x^2+4x+3/x^2+6x+8.

Answers: 2

Mathematics, 03.02.2019 02:17

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

Answers: 1

Asurvey conducted five years ago by the health center at a university showed that 18% of the student...

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