The following sample data are measurements of weight of middle school students. 153, 148, 151, 163, 114, 164, 135, 131, 176 1. (25%) Assume that we do not know the true standard deviation of middle school students. Calculate the two 1-sided 95% confidence intervals on the mean (find both upper and lower limits).

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step-by-step explanation:

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.