Mathematics, 09.03.2021 03:30 kodyclancy
A scientist asked four of her dentist friends if they thought the new Brand X sugar-free gum that she developed was effective. Three responded "yes." The scientist used the results to write a TV advertisement claiming that "3 out of 4 dentists prefer Brand X sugar-free gum." Is this a valid inference? Explain.
Use pencil and paper. Explain all of the factors that are necessary for an inference to be valid.
Is the inference valid? Explain. Choose the correct answer below.
A.Yes, because 3 dentists said yes out of 4 who were asked.
B. No, because 3 dentists said yes out of 7 who were asked.
C. No, because the dentists asked are not a representative sample of the population of dentists.
D.Yes, because the dentists asked are a representative sample of the population of dentists.
Answers: 2
Mathematics, 21.06.2019 16:50
An angle that measures between 90 and 180° is called a(,
Answers: 2
Mathematics, 21.06.2019 17:30
Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.
Answers: 2
Mathematics, 21.06.2019 17:30
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
Answers: 1
Mathematics, 21.06.2019 19:00
Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180
Answers: 1
A scientist asked four of her dentist friends if they thought the new Brand X sugar-free gum that s...
Biology, 12.07.2019 14:40
Business, 12.07.2019 14:40
Business, 12.07.2019 14:40
Social Studies, 12.07.2019 14:40
Mathematics, 12.07.2019 14:40
History, 12.07.2019 14:40
Chemistry, 12.07.2019 14:40
History, 12.07.2019 14:40
Social Studies, 12.07.2019 14:40
Mathematics, 12.07.2019 14:40
Biology, 12.07.2019 14:40
Mathematics, 12.07.2019 14:40
Mathematics, 12.07.2019 14:40
Health, 12.07.2019 14:40
History, 12.07.2019 14:40