Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. $$\begin{array} { l c }
\text { Interval } & \text { Observed Frequencies } \
39.99 \text { and less } & 12 \
40 - 59.99 & 18 \
60 - 79.99 & 15 \
80 \text {-and higher } & 5
\end{array}$$ It is desired to test whether these measurements came from a normal population.
-Calculate the expected frequency for the interval 80 and higher.

Question

Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. $$\begin{array} { l c } 
\text { Interval } & \text { Observed Frequencies } \
39.99 \text { and less } & 12 \
40 - 59.99 & 18 \
60 - 79.99 & 15 \
80 \text {-and higher } & 5
\end{array}$$ It is desired to test whether these measurements came from a normal population.
-Calculate the expected frequency for the interval 80 and higher.

Quizplus · Accepted Answer

The Answer of Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. $$\begin{array} { l c } 
\text { Interval } & \text { Observed Frequencies } \
39.99 \text { and less } & 12 \
40 - 59.99 & 18 \
60 - 79.99 & 15 \
80 \text {-and higher } & 5
\end{array}$$ It is desired to test whether these measurements came from a normal population.
-Calculate the expected frequency for the interval 80 and higher.

Consider a Set of 50 Measurements with Mean 50 It Is Desired to Test Whether These Measurements Came from Standard