Explain how to find the unit rate of water to vinegar
2 answers:
Step-by-step explanation:
We need to find the unit rate of water to vinegar:
Unit rate =
Unit rate is determined in the form of fraction. The solute should be taken as a numerator and the amount of solvent should be taken as a solvent. Dividing the solute by the solvent as given in the question, reducing the denominator. It describes the how many units of the first type of quantity corresponds to second one unit of the second type of quantity.
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Answer:
The 99% confidence interval for the mean commute time of all commuters in Washington D.C. area is (22.35, 33.59).
Step-by-step explanation:
The (1 - <em>α</em>) % confidence interval for population mean (<em>μ</em>) is:
Here the population standard deviation (σ) is not provided. So the confidence interval would be computed using the <em>t</em>-distribution.
The (1 - <em>α</em>) % confidence interval for population mean (<em>μ</em>) using the <em>t</em>-distribution is:
Given:
*Use the <em>t</em>-table for the critical value.
Compute the 99% confidence interval as follows:
Thus, the 99% confidence interval for the mean commute time of all commuters in Washington D.C. area is (22.35, 33.59).