Question
You have been hired to estimate the average weight of quarters in circulation. Based on the sample of quarters you collect (below), makea 90% confidence
You have been hired to estimate the average weight of quarters in circulation. Based on the sample of quarters you collect (below), makea 90% confidence interval for the weight of quarters in circulation.
| Quarter Weights (grams) | ||||||||||
| 5.631 | 5.714 | 5.719 | 5.689 | 5.551 | 5.723 | 5.705 | 5.627 | 5.627 | 5.715 | 5.576 |
| 5.632 | 5.641 | 5.676 | 5.660 | 5.699 | 5.609 | 5.634 | 5.713 | 5.591 | 5.674 | 5.675 |
| 5.684 | 5.694 | 5.655 | 5.632 | 5.598 | 5.675 | 5.628 | 5.562 | 5.636 | 5.583 | 5.567 |
| 5.551 | 5.649 | 5.708 | 5.696 | 5.614 | 5.637 | 5.601 | 5.628 | 5.711 | 5.566 | 5.653 |
| 5.653 | 5.597 | 5.687 | 5.717 | 5.678 | 5.654 | 5.556 | 5.707 | 5.563 | 5.628 | 5.679 |
| 5.714 | 5.555 | 5.719 | 5.634 | 5.647 | 5.717 | 5.612 | 5.705 | 5.657 | 5.670 | 5.607 |
| 5.687 | 5.666 | 5.612 | 5.718 | 5.714 | 5.713 | 5.663 | 5.641 | 5.589 | 5.656 | 5.712 |
| 5.639 | 5.577 | 5.580 | 5.674 | 5.636 | 5.625 | 5.597 | 5.616 | 5.591 | 5.616 | 5.700 |
| 5.706 | 5.695 | 5.562 | 5.699 | 5.607 | 5.573 | 5.659 | 5.632 | 5.654 | 5.568 | 5.628 |
| 5.687 | 5.605 | 5.689 | 5.687 | 5.554 | 5.618 | 5.701 | 5.681 | 5.645 | 5.714 | 5.665 |
| 5.661 | 5.634 | 5.714 | 5.586 | 5.656 | 5.673 | 5.657 | 5.717 | 5.611 | 5.578 | 5.579 |
| 5.614 | 5.644 | 5.724 | 5.647 | 5.566 | 5.697 | 5.558 | 5.586 | 5.586 | 5.611 | 5.573 |
| 5.573 | 5.709 | 5.629 | 5.649 | 5.552 | 5.615 | 5.645 | 5.611 | 5.686 | 5.588 | 5.641 |
| 5.704 | 5.703 | 5.696 | 5.557 | 5.551 | 5.725 | 5.608 | 5.725 | 5.603 | 5.677 | 5.638 |
| 5.573 | 5.640 | 5.561 | 5.631 | 5.563 | 5.671 | 5.662 | 5.569 | 5.648 | 5.680 | 5.681 |
| 5.551 | 5.555 | 5.578 | 5.701 | 5.645 | 5.670 | 5.574 | 5.594 | 5.705 | 5.633 | 5.719 |
| 5.680 | 5.647 | 5.641 | 5.553 | 5.616 | 5.698 | 5.552 | 5.566 | 5.559 | 5.697 | 5.686 |
| 5.560 | 5.629 | 5.701 | 5.622 | 5.615 | 5.553 | 5.608 | 5.637 | 5.663 | 5.696 | 5.714 |
| 5.675 | 5.613 | 5.594 | 5.669 | 5.569 | 5.716 | 5.705 | 5.603 | 5.709 | 5.717 | 5.606 |
| 5.581 | 5.575 | 5.601 | 5.600 | 5.664 | 5.715 | 5.705 | 5.583 | 5.586 | 5.592 | 5.550 |
| 5.628 | 5.662 | 5.603 | 5.559 | 5.676 | 5.558 | 5.678 | 5.671 | 5.642 | 5.581 | 5.568 |
| 5.706 | 5.665 | 5.712 | 5.574 | 5.602 | 5.699 | 5.716 | 5.693 | 5.711 | 5.635 | 5.612 |
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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Trigonometry (Subscription)
Authors: Mark Dugopolski
5th Edition
0135207487, 9780135207482
