5-6. Brianna is a technician at a radio station. She knows that, unlike many other types of waves, radio waves can be very long. Below is the graph for a radio wave that is 1 meter in length.
Here is the function of the radio wave: f(x) = sin (21x)
Graph the function
Write down the amplitude, period, and frequency.
The amplitude is 1
The period is 2
The frequency is 1/2

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.