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vodka [1.7K]
3 years ago
7

(a) A random sample of 10 houses in a particular area, each of which is heated with natural gas, is selected and the amount of g

as (therms) used during the month of January is determined for each house. The resulting observations are 125, 103, 118, 109, 122, 82, 99, 138, 151, 149. Let μ denote the average gas usage during January by all houses in this area. Compute a point estimate of μ.
Mathematics
1 answer:
rewona [7]3 years ago
5 0

Answer:

In average, houses in the particular area use 119,6 therms of gas during the month of January.

Step-by-step explanation:

The μ formula is:

μ= ΣXi/N

ΣXi= is the sum of each xi. xi is each observation in the sample.

N= Total number of observations.

For this case:

ΣXi= 125+103+118+ 109+ 122+ 82+ 99+ 138+ 151+ 149

ΣXi= 1196

N= 10

μ= 1196/10

μ= 119,6

In average, houses in the particular area use 119,6 therms of gas during the month of January.

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