WSP01333

• File Number: 8407
• Description: Platte River Basin - River Basin General Publications
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 4/1/1980
• Author: Six State High Plain
• Title: Six State High Plains-Ogallala Aquifer Area Study - Energy Price and Technology Assessment - Energy Price Projections
• Water Supply Pro - Doc Type: Report/Study

110

NATIONAL
HIGH PLAINS STATES

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1920

1930

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1950
YEAR

1960

1970

1980

NATIONAL AND REGIONAL REAL NATURAL
GAS PRICES (AT WELLHEAO)

FIGURE 3-3

3.2 STATISTICAL ANALYSIS
The statistical analysis was composed of two parts: (1) the deter-
mination of the probable range of the long-term annual rate-of-change in
real prices, and (2) selection of the long-term annual rate of change by a
least-squares fit of a recursive constant growth rate function.
The determination of the probable range of the long-term annual
rate-of-change in rElal prices was performed with the use of a computer
program. The program sampled progressively longer historical time
frames and computeo the compound annual escalation rate over the periods,
the mean compound annual escalation rate for the periods, and the standard
error of the mean. From the means and standard errors of periods of

3-3