Using the z-distribution, the 95% confidence interval of the population mean is: (17.5, 24.5).
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
In which:
is the sample mean.
is the standard deviation for the population.
In this problem, we have a 95% confidence level, hence
, z is the value of Z that has a p-value of 
, so the critical value is z = 1.96.
For this problem, the other parameters are:
Hence the bounds of the interval are:
The interval is: (17.5, 24.5).
More can be learned about the z-distribution at brainly.com/question/25890103
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The sale price of the jacket that Sierra wants to buy = $120
Actual price of the jacket that Sierra wants to buy = $150
Amount of sale given on the jacket that Sierra wants to buy = (150 - 120) dollars
= 30 dollars
Percentage change in the price of jacket = (30/150) * 100
= (1/5) * 100
= 20 percent
So the percentage change in the price of the jacket that Sierra wanted to buy was 20%. The correct option among all the options given in the question is option "C".I hope that the procedure is clear enough for you to understand.
Answer: Option 'c' is correct.
Step-by-step explanation:
Advantages of filling tax return online:
1) It allows for greater accuracy when filling as online system is faster in updating and verifying the details of individual.
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Hence, II and III are correct.
Therefore, Option 'c' is correct.
Answer:
D
Step-by-step explanation:
since p is an odd number choice C can't be the answer because 4 is even number
Q is an even number so that choice B can't be answers because 3 is an odd number .
and for A 6 isnot a prime number so that it proves tim is correct.
but when we see D 2 is a prime number so that it shows tim is wrong.
A cause and effect relationship between two variables, A and B, is written A then B, or in formal logic: A => B (A implies B).
