1. Normal Distribution
Process A has a standard deviation of 0.9 while process B has a standard deviation of 1.2.
The mean for the two processes is 12. Process B shows greater variation with a standard
deviation of 1.2. A greater standard deviation shows that values are spread away from the
mean. Data is less consistent and less predictable. Data with a greater standard deviation is
less reliable as the variance is high. To improve on it, Process B has to increase the sample
size so that the standard deviation is reduced. Data A is more consistent and predictable
because of the small standard deviation. The values are closer to the mean which is 12.
Such information is useful in decision-making as it can be used in decision-making
whereby the process with a smaller standard deviation is chosen as it is consistent.
Although process A might record higher productivity, the big standard deviation might
indicate to the decision-makers that the result is not consistent and varies from time to time.
2. Hang Up and Drive
Motorists who talk on a cell phone while driving are 9% slower to hit the brakes, 19% slower
to resume normal speed after braking, and four times more likely to crash.
The above statistics are not backed by any solid research that was done to confirm the accuracy
of the results. They do not come from reputable journals, research institutions, or journals that
are peer-reviewed which are deemed to be more reliable (Kennedy, 2022). We also do not have
information on how the data was collected the methodologies used, or how it was analyzed for
the inference to be made. The sample size and how control for the confounding factors was
done is not explained. There is also no evidence of any similar research that has been conducted
around the same topic for comparison which makes the findings less reliable. The information
Process A has a standard deviation of 0.9 while process B has a standard deviation of 1.2.
The mean for the two processes is 12. Process B shows greater variation with a standard
deviation of 1.2. A greater standard deviation shows that values are spread away from the
mean. Data is less consistent and less predictable. Data with a greater standard deviation is
less reliable as the variance is high. To improve on it, Process B has to increase the sample
size so that the standard deviation is reduced. Data A is more consistent and predictable
because of the small standard deviation. The values are closer to the mean which is 12.
Such information is useful in decision-making as it can be used in decision-making
whereby the process with a smaller standard deviation is chosen as it is consistent.
Although process A might record higher productivity, the big standard deviation might
indicate to the decision-makers that the result is not consistent and varies from time to time.
2. Hang Up and Drive
Motorists who talk on a cell phone while driving are 9% slower to hit the brakes, 19% slower
to resume normal speed after braking, and four times more likely to crash.
The above statistics are not backed by any solid research that was done to confirm the accuracy
of the results. They do not come from reputable journals, research institutions, or journals that
are peer-reviewed which are deemed to be more reliable (Kennedy, 2022). We also do not have
information on how the data was collected the methodologies used, or how it was analyzed for
the inference to be made. The sample size and how control for the confounding factors was
done is not explained. There is also no evidence of any similar research that has been conducted
around the same topic for comparison which makes the findings less reliable. The information
