Suppose that two additional workers will be chosen to participate in the simulated escape exercise. denote their escape times by x27 and x28, and let xnew denote the average of these two values. modify the formula for a pi for a single x value to obtain a pi for xnew, and calculate a 95% two-sided interval based on the given escape data.

d

step-by-step explanation:

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: