Mathematics, 27.11.2019 01:31 maddihamidou
"tongue piercing may speed tooth loss, researchers say" is the headline of an article. the article describes a study of 42 young adults with pierced tongues. the researchers found receding gums, which can lead to tooth loss, in 15 of the participants.
(a) construct a 95% confidence interval for the proportion of young adults with pierced tongues who have receding gums. (round your answers to three decimal places.)
(b) what assumptions must be made for use of the z confidence interval to be appropriate? (select all that apply.)
__the sample is a random sample.
__the sample is independent.
__the sample is voluntary.
__the sample size is large.
Answers: 2
Mathematics, 21.06.2019 17:30
Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle
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Mathematics, 21.06.2019 19:20
Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)
Answers: 1
Mathematics, 22.06.2019 00:20
Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.
Answers: 2
"tongue piercing may speed tooth loss, researchers say" is the headline of an article. the article d...
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