Question

Obs # Age Obs # Age Obs # Age Obs # Age Obs # Age 1...

Obs #

Age

Obs #

Age

Obs #

Age

Obs #

Age

Obs #

Age

1

2019

11

2019

21

1976

31

2019

41

2006

2

1998

12

2019

22

2013

32

2018

42

2013

3

2019

13

2019

23

2019

33

2019

43

1982

4

1995

14

1980

24

1994

34

1997

44

2019

5

2018

15

2019

25

1979

35

2015

45

1988

6

2011

16

2016

26

1974

36

2019

46

2019

7

1974

17

1998

27

1984

37

2019

47

1999

8

1999

18

2018

28

2017

38

2019

48

2019

9

2017

19

2017

29

2019

39

2019

49

2001

10

2012

20

2015

30

2019

40

1986

50

2005

We Know Coinz Ltd., a national numismatic organization, believes that the average age of pennies in circulation is greater (older) than that of the average age of quarters in circulation. They have estimated the average age of quarters in circulation to be approximately 16.75 years. Use the confidence interval you have created to answer the question: Is the average age of pennies in circulation greater than the estimated average age of quarters? Explain.

Math   Statistics-And-Probability   
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