The College Board SAT college entrance exam consists of three parts: math, writing and critical reading (The World Almanac 2012)
. Sample data showing the math and writing scores for a sample of twelve students who took the SAT follow. Click on the datafile logo to reference the data.
a. use a level of significance and test for a difference between the population mean for the math scores and the population mean for the writing scores. what is the test statistic? enter negative values as negative numbers. round your answer to two decimal places.
a. use a level of significance and test for a difference between the population mean for the math scores and the population mean for the writing scores. what is the test statistic? enter negative values as negative numbers. round your answer to two decimal places.
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Answer:
Step-by-step explanation:
The probability that a mosquito lands on your neck per second is 0.5
The chance of it biting once it lands is 0.2
The likelihood that it does not bite after landing is 0.8
Therefore, the probability of a bite in one second is
This translates to a 1/100 likelihood of being bitten in just one second
Over the course of 100 seconds, the expected number of bites is
The anticipated interval between bites is 100