Question

Listed below are body temperatures from five different subject measured at 8 AM and again at 12 AM. Find the values of d and s. In general, what does al represent? Temperature (°F) at 8 AM 98.4 Temperature (°F) at 12 AM 99.0 99.4 99.8 97.7 982 97.6 973 97.1 976 Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample. Find the values of d and so (Type an integer or a decimal. Do not round.) (Round to two decimal places as needed.) In general, what does y represent? O A. The mean value of the differences for the paired sample data OB. The difference of the population means of the two populations OC. The mean of the means of each matched pair from the population of matched data OD. The mean of the differences from the population of matched data

Answer 1

Here we have data: Temperature at 8 am Temprature at 12 am d = Temprature at 8 12 am 98.4 99 -0.6 99.4 99.8 -0.4 97.7 98.2 97.6 97.3 97.1 97.6 We calcuate form data:

– 1.7 Sum of terms = – 0.6 – 0.4 – 0.5 + 0.3 – 0.5 = Number of terms = 5 Sum of terms Mean = Number of terms -1.7 Mean = = -0.34 d = -0.34 s=\W-(61 - 7).

s2 - E(X; - )2 N-1 - (-0.6--0.34)2 + ... + (-0.5--0.34)2 5-1 _0.532 4 = 0.133 S = V0.133 = 0.36 (Round to two decimal place) Sd = 0.36

Correct option "D"

The difference of the population means of the two popualitons.