Question

Is the following statement true or false? Explain. "If the sample size is increased, the standard deviation will increase because larger samples have more variability."

180

likes
902 views

Answer to a math question Is the following statement true or false? Explain. "If the sample size is increased, the standard deviation will increase because larger samples have more variability."

Expert avatar
Jett
4.7
97 Answers
To determine if the statement is true or false, we need to understand how sample size affects standard deviation.

When the sample size increases, the standard deviation of the sample mean decreases. This is known as the Central Limit Theorem. Larger sample sizes lead to a more accurate estimate of the population mean, resulting in less variability in the sample means.

Therefore, the statement is false. When the sample size is increased, the standard deviation will not increase but rather decrease.

\textbf{Answer:} The statement is false.

Frequently asked questions (FAQs)
What is the length of the altitude of a triangle if the base is 12 units and the corresponding height is 8 units?
+
What is the maximum value of the function f(x) = x^3 - 6x^2 + 9x on the closed interval [0,3]?
+
How many apples did each student receive in the class? Mean: 7.2, Mode: 8, Median: 7, Range: 5, Average: 7.2.
+
New questions in Mathematics
Karina has a plot of 5,000 square meters in which she has decided that 60% of it will be used to plant vegetables. Of this part, 12% will be dedicated to planting lettuce. How much surface area of the plot will be used for cultivation?
132133333-33
Let I ⊂ R be a bounded and nonempty interval. Show that there are numbers a, b ∈ R with a ≤ b and I =[a,b] or I =[a,b) or I =(a,b] or I =(a,b)
2x-4y=-6; -4y+4y=-8
Perpetual annuities are a series of payments whose duration has no end. Explain how can we calculate them, if they have no end?
We have spent 1/4 of the inheritance on taxes and 3/5 of the rest on buying a house. If the inheritance was a total of €150,000 How much money do we have left?
A pair of die is thrown and the absolute difference of the two scores is recorded. What is the probability of the absolute difference being 4 or more?
How many anagrams of the word SROMEC there that do not contain STROM, MOST, MOC or CEST as a subword? By subword is meant anything that is created by omitting some letters - for example, the word EMROSCT contains both MOC and MOST as subwords.
4x + 8y = 5 2x + 4y = 10
How many square feet of floor area are there in three two-storey apartment houses, each of which is 38 feet wide and 76 feet long?
The sick-leave time of employees in a firm in a month is normally with a mean of 100 hours and a standard deviation of 20 hours. Find the probability that the sick-leave time of an employee in a month exceeds 130 hours.
392929-9
A tree cast a shadow of 26 meters when the angle of evaluation of the sum is 24°. Find the height of the tree to the nearest meter
In a physics degree course, there is an average dropout of 17 students in the first semester. What is the probability that the number of dropouts in the first semester in a randomly selected year has between 13 and 16 students?
A multiple choice exam is made up of 10 questions; Each question has 5 options and only one of them is correct. If a person answers at random, what is the probability of answering only 3 good questions?
7- A printing company found in its investigations that there were an average of 6 errors in 150-page prints. Based on this information, what is the probability of there being 48 errors in a 1200-page job?
Identify the slope and y intercept y=11+2/3x
A nondegenerate ideal gas of diatomic molecules with a kilomolar mass of 2 kg/kmol and a characteristic rotational temperature of 86 K is adsorbed on the walls of a container, where the binding energy is 0.02 eV. The adsorbed molecules move freely on the walls, and their rotation is confined to the plane of the walls. Calculate the surface density of adsorbed molecules at 12 K if the gas pressure is 103 Pa! What result would you get at 68 K and the same pressure?
A candy manufacturer must monitor deviations in the amount of sugar in their products They want their products to meet standards. They selected a random sample of 20 candies and found that the sandard deviation of that sample is 1.7. What is the probabilty of finding a sample variance as high or higher if the population variance is actually 3277 Assume the population distribution is normal.
Let A denote the set of all people who were alive in 2010. Let B denote the set of all real numbers. Let f assign, to each person in A, their weight during the year 2010. Is f a function? Explain in complete sentences.