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A physicist wants to verify whether a radioactive substance has a level of radioactivity equal to 4 radioactive particles emitted per millisecond. He measures the radioactivity with a Geiger counter, and it records 18 particles in 3 msec.

a. What is the expected number of radioactive particles per 3 m sec?

b. Compute the P value for an observed value this far or even farther from the number expected in 3 msec.

c. Using an a of 0.05, make a test of hypothesis to determine if the radioactivity level is significantly greater than expected.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92777821

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