A study by the department of education of a certain state was trying to determine the
mean SAT scores of the graduating high school seniors. The study examined the
scores of a random sample of 165 graduating seniors and found the mean score to be
515 with a standard deviation of 90. Determine a 95% confidence interval for the
mean, rounding all values to the nearest tenth.
Answer : (501,529)
Answers: 2
SAT, 26.06.2019 05:30, pikachu17
Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears canβt. d. different species of birds fight over spilled popcorn on the ground.
Answers: 1
SAT, 26.06.2019 05:30, tiniecisneros28
The graph shows the populations of two species over time. which type of symbiotic relationship does the graph represent? a. commensal b. mutualistic c. parasitic d. parent-offspring e. predator-prey
Answers: 1
SAT, 28.06.2019 07:30, claudia122752
During a load test, a battery's voltage drops below a specified value. what action should the technician take?
Answers: 1
A study by the department of education of a certain state was trying to determine the
mean SAT scor...
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