Suppose a test has been given to all high school students in a certain state. the mean test score for the entire state is 70, with standard deviation equal to 10. members of the school board suspect that female students have a higher mean score on the test than male students, because the mean score from a random sample of 64 female students is equal to 73. does this provide strong evidence that the overall mean for female students is higher? the alternative hypothesis for this study is

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.