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You calcuate the chi-square test statistic in a test of independence and determined that X²* = -4.23, with 10 degrees of freedom. Therefore, with alpha = 0.05, you know that:
A) a mistake was made in the calculation
B) Ho is rejected
C) fail to reject Ho
D) the observed frequencies were greater than the corresponding expected frequencies
The heights of north American women are normally distributed with a mean of 64 inches and a standard deviation of 2 inches.
a binomial process has a probability of success of 0.15. if eight trials are run what are the mean number of successes
If the least squares equation for sales data going from 1984 to 1990 is Y1 = 10 + 1.3X (in $ millions) found using the coded method, what is the plot on the straight line for 1988? (x and y values)
Write the regression equation approximately. Computed the coefficient of determination(r 2 ).
Deductible amount and limits of liability, are standardized. The sample information is reported below. At the .10 significance level, can we conclude that there is a difference in the amounts quoted?
Does drug have significant effect on aggression? Use an alpha level of .05, two tails.
the jessie cohen clothing group owns factories in three towns w y and z which distribute to three cohen retail dress
1. of 25 members of a senior honors engineering society 18 are men and 7 are women. the advisor chooses 4 of them to be
a song writer wishes to compose a melody. each note in the melody must be one of the 14 notes in her vocal range. how
in 1965 about 44 of the us popuation had never smoked a cigarette. a nation survey of 1205 us adults during 2006
assume that three industrial processes a b and c are independent. if the probability of successfully working for 8
estimating the combined mean values for the given data.one sample of n 4 scores has a mean of m 10 and a second
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