SAT, 08.02.2022 14:20 cheesecake1919
The manufacturer of a certain type of new cell phone battery claims that the average life span of the batteries is charges; that is, the battery can be charged at least times before failing. To investigate the claim, a consumer group will select a random sample of cell phones with the new battery and use the phones through charges of the battery. The proportion of batteries that fail to last through charges will be recorded. The results will be used to construct a percent confidence interval to estimate the proportion of all such batteries that fail to last through charges.
Answers: 3
SAT, 23.06.2019 23:30
Students who cannot afford to pay the fee for the profile may be granted an automatic: a. scholarhship b. waiver c. fee d. loan
Answers: 2
SAT, 25.06.2019 22:00
Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.
Answers: 1
SAT, 25.06.2019 22:00
These two squirrels live in the same ecosystem. what type of interaction do the images represent? a. direct competition b. mutualism c. interference competition d. symbiotic e. indirect competition
Answers: 1
SAT, 27.06.2019 06:00
The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.what is the value of a? a) -16b) -3c) 3d) 16
Answers: 1
The manufacturer of a certain type of new cell phone battery claims that the average life span of th...
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