A company makes concrete bricks shaped like rectangular prisms. Each brick is 11 inches long,8 inches wide, and 5 inches tall. I
1 answer:
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Answer:
- The amount of time greater than 10.2 hours for this year.
- The is 0.01358.
Step-by-step explanation:
Given information:
mean, X = 10.2 hours
sample, n = 15
using t distribution
test statistics = 2.822
= 2 x P(
> test statistics)
= 2 x P( > 2.822)
= 2 x 0.00679
= 0.01358
is less than 0.10 which indicates that the amount of time greater than 10.2 hours for this year.