Task 1
You are going to model radioactive decay using dice.
Method
1. Take 100 dice. 6 will be the radioactive atom that has decayed and anything that is not six will still count
2. Shake up the dice and throw them into a tray, count and record how many 6’s and not 6’s
3. Remove all 6’s and set aside
4. Collect up all the not 6’s , shake and throw into the tray again
5. Repeat the process until there are no dice left in the tray
You will now have enough data to carry out a chi square test
Task 2
You are going to perform a cooling rates test with two beakers of water, One will be insulated with paper towels and the other will have no insulation. Every minute record the temperate for each beaker in a separate data table. You will find the average temperature and the standard deviation of the temperature for each beaker [ you can use any online calculator]
Task 3
Calculate a chi-square value. How many degrees of freedom are in your data? Does the corresponding confidence level indicate if your data is biased or not?
Task 4
Calculate a t-value. How many degrees of freedom are in your data? Does the corresponding significance value indicate that insulating a beaker slows down the rate of cooling?
Task 5
Is your test accurate? Could the United Kingdom Atomic Energy Authority use your data for their own tests? Where there any possible errors in your test?
Task 6
Is your data reliable? Could your t-test value be used by a materials company that want insulation data? Were there any possible errors in your experiment?
You are going to model radioactive decay using dice.
Method
1. Take 100 dice. 6 will be the radioactive atom that has decayed and anything that is not six will still count
2. Shake up the dice and throw them into a tray, count and record how many 6’s and not 6’s
3. Remove all 6’s and set aside
4. Collect up all the not 6’s , shake and throw into the tray again
5. Repeat the process until there are no dice left in the tray
You will now have enough data to carry out a chi square test
Task 2
You are going to perform a cooling rates test with two beakers of water, One will be insulated with paper towels and the other will have no insulation. Every minute record the temperate for each beaker in a separate data table. You will find the average temperature and the standard deviation of the temperature for each beaker [ you can use any online calculator]
Task 3
Calculate a chi-square value. How many degrees of freedom are in your data? Does the corresponding confidence level indicate if your data is biased or not?
Task 4
Calculate a t-value. How many degrees of freedom are in your data? Does the corresponding significance value indicate that insulating a beaker slows down the rate of cooling?
Task 5
Is your test accurate? Could the United Kingdom Atomic Energy Authority use your data for their own tests? Where there any possible errors in your test?
Task 6
Is your data reliable? Could your t-test value be used by a materials company that want insulation data? Were there any possible errors in your experiment?
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