except those in the Printing and Publishing and Allied Industries Group; in the 1947 Census of Manufactures this group collected in the 1949 Annual Survey of Manufactures but not tabulated for publication. The 1950 estimates for some estimates are included, however, in the appropriate major industry group (2-digit) estimates and the a breakdown of the total by "Finished products" and "Materials, etc." is not shown when the standard subtraction, have standard errors in excess of 15 percent.)

in

"All industries" error of

the

swithheld because the standard error of the 1950 estimate for one or both of the detail figures for this industry group exceeds 15 percent.

In the 1947 Census of Manufactures, smaller establishments submitting "short" form reports were not requested to include inventory data. The understatement of value of inventories resulting from this is negligible. For a measure of the degree of understatement see Chapter V of Volume I, "General Summary," Census of Manufactures, 1947.

2The percentage standard errors shown in this column indicate the difference that can be expected between the estimates

and comparable complete canvass totals, because of sampling fluctuations. The estimates will differ from the complete totals by less than:

(1) The percentage shown: approximately 2 times out of 3

(11)

(iii)

Twice the percentage shown: approximately 19 times out of 20
Three times the percentage shown: almost always

'Includes privately owned and/or operated establishments classified in Industry Group 19, "Ordnance and accessories".