The expected number of background counts b 1080 during

Reference no: EM13622957

You are to establish a procedure for measuring the radioactivity of samples placed in a counter. The calibration of the counter is such that one net count in the allotted time corresponds to 2.27 Bq of sample activity. The expected number of background counts, B = 1080, during the allotted time is accurately known. The acceptable risk for making a type-I error is 5% and that for a type-II error, 1%.

a) What is the minimum significant net sample count?

b) What is the minimum significant measured activity?

c) What is the minimum detectable true activity?

d) A certain sample-plus-background reading registers 1126 gross counts. What is the implied sample activity?

e) What would be the answer to (d) if one were willing to risk a type-I error in 10% of the measurements?

f) With the type-I error probability set at its original value of 5%, what would be the minimum detectable true activity if one were to accept a 10% (instead of 1%) risk of a type-II error?

Reference no: EM13622957

Questions Cloud

Sketch the t-s and p-v diagrams and calculate the work and : two kilograms of steam expands isentropically in a closed adiabatic system from 2 mpa and 350 degree c to a final

A magnetic field is oriented at an angle of 31deg to the : a magnetic field is oriented at an angle of 31deg to the normal of a rectangular area 5.5 cm by 7.2 cm. if the magnetic

If the probe surface has an emissivity of 085 and the probe : a sphereical interplanetary probe of 0.6-m diameter contains electronics that dissipate 170 w. if the probe surface

How much money do you need in a retirement account earning : how much money do you need in a retirement account earning 8 annual interest compounded monthly to be able to withdraw

The expected number of background counts b 1080 during : you are to establish a procedure for measuring the radioactivity of samples placed in a counter. the calibration of the

Explain the process of financial planning used to estimate : explain the process of financial planning used to estimate asset investment requirements for a corporation. explain the

The magnetic field due to a current pulse in a single long : the magnetic field due to a current pulse in a single long straight axon nerve fiber is found to be 1.2 x 10-10 t at a

What is the rate of heat loss from the steam line if the : an overhead 30-m-long uninsulated industrial steam pipe of 120-mm diameter is routed through a buidling whose walls and

Delamont transport company dtc is evaluating the merits of : delamont transport company dtc is evaluating the merits of leasing versus purchasing a truck with a 4-year life that

User Account

All Pages