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Terrariums are self-contained ecosystems inside a closed container. A local farmer produces terrariums for sale, but must wait for the plants in the terrarium to grow before she can sell them. On average, her terrariums take 25 days before they are ready to sell. She experiments with a new soil mixture, aiming to decrease the time it takes for the terrariums to be ready. In a sample of 8 terrariums with the new soil mixture, the farmer finds that the average time before they are ready is 21 days with a standard deviation of 5 days. In testing the hypotheses Ho: μ = 24 and H₁ : μ< 24, what is the value of the t-test statistic? Round your answer to three decimal places.

Terrariums are self-contained ecosystems inside a closed container. A local farmer produces terrariums for sale, but must wait for the plants in the terrarium to grow before she can sell them. On average, her terrariums take 25 days before they are ready to sell. She experiments with a new soil mixture, aiming to decrease the time it takes for the terrariums to be ready. In a sample of 8 terrariums with the new soil mixture, the farmer finds that the average time before they are ready is 21 days with a standard deviation of 5 days. In testing the hypotheses Ho: μ = 24 and H₁ : μ< 24, what is the value of the t-test statistic? Round your answer to three decimal places.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Terrariums are self-contained ecosystems inside a closed container. A local farmer produces terrariums for sale, but must wait for the plants in the terrarium to grow before she can sell them. On average, her terrariums take 25 days before they are ready to sell. She experiments with a new soil mixture, aiming to decrease the time it takes for the terrariums to be ready. In a sample of 8 terrariums with the new soil mixture, the farmer finds that the average time before they are ready is 21 days with a standard deviation of 5 days. In testing the hypotheses Ho: μ = 24 and H₁ : μ< 24, what is the value of the t-test statistic? Round your answer to three decimal places.
Transcribed Image Text:Terrariums are self-contained ecosystems inside a closed container. A local farmer produces terrariums for sale, but must wait for the plants in the terrarium to grow before she can sell them. On average, her terrariums take 25 days before they are ready to sell. She experiments with a new soil mixture, aiming to decrease the time it takes for the terrariums to be ready. In a sample of 8 terrariums with the new soil mixture, the farmer finds that the average time before they are ready is 21 days with a standard deviation of 5 days. In testing the hypotheses Ho: μ = 24 and H₁ : μ< 24, what is the value of the t-test statistic? Round your answer to three decimal places.
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