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.
The constant of proportionality is $1.5 per jar of sauce. Hope it help!
Answer:
75
Step-by-step explanation:
Translate the problem into an equation and solve the equation.
"15 is 20% of a number"
15 = 20% * n
15 = 20/100 * n
15 = 0.2n
Multiply both sides by 5.
75 = n
Answer: The number is 75.
Check: 20% of 75 = 0.2 * 75 = 15
The answer is correct.