the resistance of the control circuits in a machine are lower when the machine motor is running. To ivestigate this question, a set of the control circuits was tested as follows. Their resistance was measured while the machine motor was not running for a certain period of time and then again while the motor was running. The values found are listed in the worksheet with kilo-Ohms as the unit of measurement. 1. Set up the structure of an appropriate statistical test to determine whether the resistance of the control circuit in a machine is lower when the machine motor is running. 2) Carry out the statistical test and state your conclusions. 2. Give a reason why the data is measured with the engine not run- ning first and then with the engine running.
A study was carried out to determine whether the resistance of the control circuits in a machine are lower when the machine motor is running. To ivestigate this question, a set of the control circuits was tested as follows. Their resistance was measured while the machine motor was not running for a certain period of time and then again while the motor was running. The values found are listed in the worksheet with kilo-Ohms as the unit of measurement.
1. Set up the structure of an appropriate statistical test to determine whether the resistance of the control circuit in a machine is lower when the machine motor is running.
2) Carry out the statistical test and state your conclusions.
2. Give a reason why the data is measured with the engine not run- ning first and then with the engine running.
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