Mathematics, 27.08.2019 19:00 kayla32213
Abigail, who works for a region's department of health, is looking for evidence that the percentage of adults in the region who are current smokers has decreased from 15.8% in 2015. she gathers a random sample of adults in the region and asks each individual if he or she currently smokes. abigail found that 40 of the 277 adults who were surveyed are current smokers. what are the null and alternative hypotheses for this hypothesis test?
Answers: 2
Mathematics, 21.06.2019 20:00
Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line
Answers: 1
Mathematics, 21.06.2019 21:30
Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.
Answers: 2
Mathematics, 21.06.2019 21:30
Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?
Answers: 1
Mathematics, 21.06.2019 23:00
Could someone me with this question i’ve been stuck on it for 20 minutes
Answers: 1
Abigail, who works for a region's department of health, is looking for evidence that the percentage...
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