Answer:
Approximately 13 weeks
Step-by-step explanation:
GIven data
Amount to be save= $175
Weekly allowance = $14
Hence the number of weeks it will take to save $175 is given as
=175/14
=12.5
Therefore the number of weeks is approximately 13 weeks
Answer:
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Answer:
The 95% confidence interval for the true population mean of pollutant discharge is (26.7 tons, 33.7 tons).
Step-by-step explanation:
Let <em>X</em> represent the daily level of pollutant discharge in the manufacturing district in Pittsburgh.
The monitoring equipment reveals that for the 28 days of the February month
Mean daily discharge per factory, () = 30.2 tons
Standard deviation daily discharge per factory, (<em>s</em>) = 9.1 tons
Compute the critical value of <em>t</em> for 95% level of confidence and (n - 1 =) 27 degrees of freedom as follows:
*Use a t-table.
Compute the 95% confidence interval for the true population mean of pollutant discharge as follows:
Thus, the 95% confidence interval for the true population mean of pollutant discharge is (26.7 tons, 33.7 tons).
Answer:
Brainleist!
Step-by-step explanation:
10 marbles total
8 are either purple or orange
8/10 or 4/5 or 80% or 0.8
80 x 0.8 = 64
Answer:
sorry i dont know
Step-by-step explanation: