Mathematics
Mathematics, 16.02.2021 04:30, sierraaasifuent

Pennies made prior to 1982 were made of 95% copper. Because of their copper content, these pennies are worth about $0.023 each. Pennies made after 1982 are only 2.5% copper. Jenna reads online that 13.2% of pennies in circulation are pre-1982 copper pennies. Jenna has a large container of pennies at home. She selects a random sample of 50 pennies from the container and finds that 11 are pre-1982 copper pennies. Does this provide convincing evidence that the proportion of pennies in her containers that are pre-1982 copper pennies is greater than 0.132

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:50, savskye1767
What statement is true? 2x^2-9x+2=-1
Answers: 1
image
Mathematics, 22.06.2019 00:30, Hfruit
Vertical angles must check all that apply
Answers: 3
image
Mathematics, 22.06.2019 00:30, cocaineal
Julie multiplies 6.27 by 7 and claims the product is 438.9 .explain without multiplying how you know juliesanswer is not correct. find the correct answer
Answers: 1
image
Mathematics, 22.06.2019 01:30, malikbryant2002
At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.
Answers: 2
Do you know the correct answer?
Pennies made prior to 1982 were made of 95% copper. Because of their copper content, these pennies a...

Questions in other subjects:

Konu
Physics, 23.04.2021 18:00
Konu
Mathematics, 23.04.2021 18:00
Konu
Mathematics, 23.04.2021 18:00
Konu
Mathematics, 23.04.2021 18:00
Konu
Mathematics, 23.04.2021 18:00