Question
You have been hired to estimate the average weight of quarters in circulation. Based on the sample of quarters you collect (below), make a90% confidence
You have been hired to estimate the average weight of quarters in circulation. Based on the sample of quarters you collect (below), make a90% confidence interval for the weight of quarters in circulation.
| Quarter Weights (grams) | ||||||||||
| 5.605 | 5.583 | 5.555 | 5.662 | 5.627 | 5.593 | 5.580 | 5.722 | 5.667 | 5.565 | 5.595 |
| 5.653 | 5.575 | 5.628 | 5.674 | 5.719 | 5.623 | 5.690 | 5.550 | 5.694 | 5.603 | 5.575 |
| 5.597 | 5.583 | 5.556 | 5.576 | 5.659 | 5.626 | 5.554 | 5.570 | 5.584 | 5.647 | 5.651 |
| 5.566 | 5.631 | 5.597 | 5.687 | 5.618 | 5.571 | 5.654 | 5.717 | 5.597 | 5.705 | 5.560 |
| 5.658 | 5.566 | 5.564 | 5.705 | 5.564 | 5.698 | 5.713 | 5.587 | 5.597 | 5.658 | 5.686 |
| 5.662 | 5.623 | 5.713 | 5.550 | 5.705 | 5.624 | 5.626 | 5.576 | 5.556 | 5.628 | 5.601 |
| 5.654 | 5.704 | 5.600 | 5.661 | 5.663 | 5.554 | 5.665 | 5.719 | 5.651 | 5.630 | 5.642 |
| 5.680 | 5.579 | 5.709 | 5.711 | 5.582 | 5.674 | 5.714 | 5.560 | 5.597 | 5.591 | 5.576 |
| 5.581 | 5.637 | 5.576 | 5.562 | 5.673 | 5.584 | 5.592 | 5.566 | 5.710 | 5.654 | 5.644 |
| 5.616 | 5.572 | 5.562 | 5.553 | 5.567 | 5.615 | 5.711 | 5.695 | 5.716 | 5.665 | 5.705 |
| 5.590 | 5.673 | 5.641 | 5.611 | 5.570 | 5.588 | 5.686 | 5.608 | 5.691 | 5.687 | 5.695 |
| 5.564 | 5.725 | 5.565 | 5.668 | 5.569 | 5.695 | 5.659 | 5.714 | 5.606 | 5.598 | 5.670 |
| 5.580 | 5.555 | 5.623 | 5.688 | 5.721 | 5.559 | 5.611 | 5.695 | 5.608 | 5.628 | 5.590 |
| 5.639 | 5.605 | 5.699 | 5.582 | 5.710 | 5.711 | 5.664 | 5.585 | 5.582 | 5.582 | 5.624 |
| 5.594 | 5.561 | 5.646 | 5.677 | 5.583 | 5.660 | 5.641 | 5.715 | 5.708 | 5.628 | 5.567 |
| 5.680 | 5.710 | 5.644 | 5.675 | 5.563 | 5.583 | 5.583 | 5.668 | 5.583 | 5.609 | 5.550 |
| 5.618 | 5.600 | 5.559 | 5.635 | 5.635 | 5.650 | 5.586 | 5.596 | 5.645 | 5.654 | 5.581 |
| 5.685 | 5.586 | 5.605 | 5.712 | 5.722 | 5.664 | 5.649 | 5.698 | 5.598 | 5.621 | 5.677 |
| 5.590 | 5.557 | 5.584 | 5.561 | 5.605 | 5.652 | 5.555 | 5.631 | 5.675 | 5.561 | 5.621 |
| 5.703 | 5.685 | 5.605 | 5.630 | 5.602 | 5.619 | 5.649 | 5.720 | 5.641 | 5.664 | 5.661 |
| 5.705 | 5.708 | 5.562 | 5.673 | 5.578 | 5.688 | 5.684 | 5.679 | 5.575 | 5.673 | 5.602 |
| 5.670 | 5.678 | 5.604 | 5.552 | 5.652 | 5.708 | 5.627 | 5.675 | 5.619 | 5.587 | 5.676 |
BLANK #1: Is this a question involving mean or proportion? ***ANSWER "MEAN" OR "PROPORTION" (WITHOUT THE QUOTATION MARKS)***
BLANK #2: What is the LOW end of the estimate ***ANSWER TO 3 DECIMALS***
BLANK #3: What is the HIGH end of the estimate ***ANSWER TO 3 DECIMALS***
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A Graphical Approach To College Algebra
Authors: John E Hornsby, Gary K Rockswold, Margaret K Lial
5th Edition
0321908260, 9780321908261
