Continue The Pattern: 7, 13, 19 ; hint; the next five numbers are not 25, 31, 37, 43, & 49
2 answers:
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Answer:
B. The interval will be narrower if the researchers increase the sample size of droplets.
Step-by-step explanation:
Margin of error of a confidence interval:
The higher the margin of error, the wider an interval is.
In which z is related to the confidence level(the higher the confidence level, the higher z), is the standard deviation of the population and n is the size of the sample.
From this, we conclude that:
If we increase the confidence level, the interval will be wider.
If we increase the sample size, the interval will be narrower.
Which of the following statements about a 95 percent confidence interval for the mean width is correct?
Increasing the sample size leads to a narrower interval, so the correct answer is given by option B.
If a transformation maps , then
is the image of
, and
is the preimage of
. So,
- the image of
is
- the preimage of
is
- the image of
is
- the preimage of
is
Answer:
Step-by-step explanation:
Solve the inequality
Use distributive property:
Subtract 4s:
Subtract 14:
Divide by -6 (do not forget to change sign, because division by negative number changes the sign):