7.23 Counts of seeds in one-pound scoops.
A leading agricultural company must maintain strict control over the size, weight, and number of seeds they package for sale to customers. An SRS of 81 one-pound scoops of seeds was collected as part of a Six Sigma quality improvement effort within the company. The number of seeds in each scoop follows.
seedcnt
376
1471 | 1489 | 1475 | 1547 | 1497 | 1490 | 1889 | 1881 | 1877 |
1448 | 1503 | 1492 | 1553 | 1557 | 1504 | 1666 | 1717 | 1670 |
1703 | 1649 | 1649 | 1323 | 1311 | 1315 | 1469 | 1428 | 1471 |
1626 | 1658 | 1662 | 1517 | 1517 | 1519 | 1529 | 1549 | 1539 |
1858 | 1843 | 1857 | 1547 | 1470 | 1453 | 1412 | 1398 | 1398 |
1698 | 1692 | 1688 | 1435 | 1421 | 1428 | 1712 | 1722 | 1721 |
1426 | 1433 | 1422 | 1562 | 1583 | 1581 | 1720 | 1721 | 1743 |
1441 | 1434 | 1444 | 1500 | 1509 | 1521 | 1575 | 1548 | 1529 |
1735 | 1759 | 1745 | 1483 | 1464 | 1481 | 1900 | 1930 | 1953 |
7.23
(b) The distribution is slightly skewed to the right. (c) Because , we can still use the procedure for even strongly skewed distributions.