Weegy: Teams that work on long-term projects but disband once the work is completed are known as D. Project and development teams. User: William used a sample of 68 U.S. cities to estimate the relationship between Crime (annual property crimes per 100,000 persons) and Income (median income per capita). His estimated regression equation was Crime = 428 + .050 Income. Weegy: iIf Income decreases by 1000, Crime will be decreased by 50 User: William used a sample of 68 U.S. cities to estimate the relationship between Crime (annual property crimes per 100,000 persons) and Income (median income per capita). His estimated regression equation was Crime = 428 + .050 Income.
From this information, we can conclude that none of these are correct
B. the slope is not significantly different from zero
C. wealthy individuals tend to commit more crimes
D. crime creates additional income in a city
Weegy: William used a sample of 68 U.S. cities to estimate the relationship between Crime (annual property crimes per 100,000 persons) and Income (median income per capita). His estimated regression equation was Crime = 428 + .050 Income. [ From this information, we can conclude that A. none of these are correct. The intercept is irrelevant since zero median income is unobservable. ] User: Dullco Manufacturing claims that its alkaline batteries last forty hours on average in a certain type of portable CD player. Tests on a random sample of 18 batteries showed a mean battery life of 37.8 hours with a standard deviation of 5.4 hours.
In a left-tailed test at = .05 we wouldswitch to alpha of 0.01 for a more powerful test
B. comfortably reject the claim
C. feel uncomfortable with either decision (too close)
D. comfortably accept the claim
Weegy: In a left-tailed test at = .05 we would B. comfortably reject the claim. (More)

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