Question

A cortain group of test oubjects had pulse rates with a mean of 74.9 beats per minule and a standard devisbon of 11.7 beats per mimute. Use the range rule of thumb for identifyng significant values io identify the limits separating values that are significantly low or significanty high. Is a pulse rate of 116:3 beats per minute signicantly iow or aignficanty hight signicicandy low valoes are beats per minute α lower.

Answer 1

The pulse rate of 116.3 beats per minute is significantly high compared to the average pulse rate of 74.9 beats per minute.

Step-by-step explanation:

The range rule of thumb is a quick method to identify significant values. In this case, the pulse rate of 116.3 beats per minute is significantly high compared to the mean pulse rate of 74.9 beats per minute. To determine the significant values, we calculate the upper and lower limits using the formula:

Upper limit = mean + (2 * standard deviation)

Lower limit = mean - (2 * standard deviation)

Using the given mean of 74.9 beats per minute and standard deviation of 11.7 beats per minute, the upper limit is 98.3 beats per minute and the lower limit is 51.5 beats per minute. Therefore, a pulse rate of 116.3 beats per minute is significantly high.