subject
Mathematics, 07.01.2021 17:30 leenzazou587

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

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 15:10
What is the equation of the graph below? y=sec(x)-4
Answers: 3
question
Mathematics, 21.06.2019 17:00
Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?
Answers: 1
question
Mathematics, 21.06.2019 18:10
Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form.
Answers: 1
question
Mathematics, 21.06.2019 19:20
Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.
Answers: 3
You know the right answer?
Pennies made prior to 1982 were made of 95% copper. Because of their copper content, these pennies a...
Questions
question
Mathematics, 15.09.2019 02:10
question
Mathematics, 15.09.2019 02:10
Questions on the website: 13722363