The data below refers to the time in hours spent on mobile internet by sample of 10 students in a class. 39 42 47 45 32 45 37 34 33 29 assume that the population data follows a normal distribution with unknown mean and unknown standard deviation. find a 95% confidence interval estimate of μ . [33.813, 42.787] hours [35.557, 41.936] hours [34.664, 41.936] hours

Option A) (33.813,42.787)

Step-by-step explanation:

We are given the following data set:

39, 42, 47, 45, 32, 45, 37, 34, 33, 29

Sample size, n = 10

Formula:

where are data points, is the mean and n is the number of observations.  

Sum of squares of differences = 354.1

95% Confidence interval:  

Putting the values, we get,  

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !