Test the consistency of the 22 years of data of the annual precipitation measured at station...

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Test the consistency of the 22 years of data of the annual precipitation measured at station 4. Rainfall data for station 4 as well as the average annual rainfall measured at a group of eight neighbouring stations located in a meteorologically homogeneous region are given as follows. Year 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 Annual Rainfall of Station A (mm) 177 144 178 162 194 168 196 144 160 196 141 Average Annual Rainfall of 8 Station groups (mm) 143 132 146 CIVIL 117 128 193 156 Year 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 Annual Rainfall of Station A FESSERV 148 142 140 130 137 130 163 Average Annual Rainfall of 8 Station groups (mm) 164 155 143 115 135 163 135 143 130 146 161 (a) In what year is a change in regime indicated? (b) Adjust the recorded data at station A and determine the mean annual precipitation. Test the consistency of the 22 years of data of the annual precipitation measured at station 4. Rainfall data for station 4 as well as the average annual rainfall measured at a group of eight neighbouring stations located in a meteorologically homogeneous region are given as follows. Year 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 Annual Rainfall of Station A (mm) 177 144 178 162 194 168 196 144 160 196 141 Average Annual Rainfall of 8 Station groups (mm) 143 132 146 CIVIL 117 128 193 156 Year 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 Annual Rainfall of Station A FESSERV 148 142 140 130 137 130 163 Average Annual Rainfall of 8 Station groups (mm) 164 155 143 115 135 163 135 143 130 146 161 (a) In what year is a change in regime indicated? (b) Adjust the recorded data at station A and determine the mean annual precipitation.

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