Below is a partial statistical summary of the first twenty-four Super Bowls (33). Of particular interest to advertisers is the network share that each game garnered. Can those shares be considered a random sequence, relative to the number of runs up and down? Test the appropriate hypothesis at the α = 0.05 level of significance.

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Network Game Winner MVP Is Share rear Score QB (network) I 1967 Green Bay (NFL) Kansas City (AFL) 35 10 1 79 (CBS/NB0 II Green Bay (NFL) 1968 Oakland (AFL) III NY Jets (AFL) 1969 Baltimore (NFL) IV Kansas City (AFL) 23 69 1970 Minnesota (NFL) V Baltimore (AFC) 1971 Dallas (NFC) VI Dallas (NFC) 1972 Miami (AFC) VII Miami (AFC) 1973 Washington (NFC) VIII Miami (AFC) 1974 Minnesota (NFC) IX Ptsburgh (AFC) 1975 Minnesota (NFC) X Ptsburgh (AFC) 1976 Dallas (NFC) XI Oakland (AFC) 1977 Minnesota (NFC) XII Dallas (NFC) 1978 Denver (AFC) XIII Pittsburgh (AFC) 1979 Dallas (NFC) XIV Pittsburgh (AFC) 1980 Los Angeles (AFC) 19 XV Oakland (AFC) 1981 Philadelphia (NFC) 10 XVI San Francisco (NFC) 26 73 1982 Cincinnati (AFC) XVII Washington (NFC)27 69 1983 Miami (AFC) XVIII LA Raiders (AFC) 380 71 1984 Washington (NFC) XIX San Francisco (NFC) 38 63 1985 Miami (AFC) XX Chicago (NFC) 1986 New England (AFC) 10 XXI NY Giants (NFC) 1987 Denver (AFC) XXII Washington (NFC) 42 62 1988 Denver (AFC) XXIII San Francisco (NFC) 200 68 1989 Cincinnati (AFC) XXIV San Francisco (NFC) 55 1 63 1990 Denver (AFC) combined (CBS) (NBC) (CBS) (NBC) (CBS) (NBC) (CBS) (NBC) (CBS) (NBC) (CBS) (NBC) (CBS) (NBC) (CBS) (NBC) (CBS) ABC) (NBC) (CBS) (ABC) (NBC) (CBS) 1 2 0 72 0 72 21 0 78 0 73 27 0 67 27 1 63 0 70