a data set includes 110 body temperatures of healthy adult humans having a mean of 98.1F and a standard deviation of 0.64F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans

The 99%  confidence interval is  

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  110

     The  sample mean is  

       The standard deviation is  

Given that the confidence level is  99% the level of significance i mathematically evaluated as

Next we obtain the critical value of   from the normal distribution, the values is  

Generally the margin of error is mathematically represented as

substituting values

Generally the  99% confidence interval  is mathematically represented as

substituting values

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

i need points

step-by-step explanation:

sorry bubs