Answer:
Step-by-step explanation:
In Statistitics whenever we test a hypothesis for testing a statistic, we use confidence interval.
Confidence interval is on either side of an assumed value a margin of error
Margin of error is calculated as critical value * sigma/sqrt of n
Thus we find that whenever n increases, margin of error decreases, thus making confidence interval narrower and thus making probability for accepting null hypothesis a less value.
Thus we find that option C is right.
C. Increasing the sample size decreases the probability because σx decreases as n increases.
Step 4: Divide both sides by -13.<span><span><span>−<span>13w</span></span><span>−13</span></span>=<span>26<span>−13</span></span></span><span>w=<span>−2</span></span>Answer:<span>w=<span>−2</span></span>
Answer:
Amount of Type B coffee used = 99 pounds
Step-by-step explanation:
Let the amount of type A taken be x pounds and type B taken be y pounds.
But we know that the total amount of coffee used = 177 pounds.
Type A coffee costs $5.70 per pound and type B coffee costs $4.10 per pound.
The total cost for the blend = $850.50.
We have to find the pounds of type B coffee used.
Equating the total costs,
5.70x + 4.10y = 850.50
x + y = 177
Substitute x = 177 - y in the first equation.
5.70 + 4.10y = 850.50
158.40 = 1.60 y
y = = 99
Amount of Type B coffee used = 99 pounds
Figure
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Answer: GCF is 4 because they’re all divisible by three and nothing higher than that.
Step-by-step explanation: