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Q 1/40
Score 0
True or False: When the population is large and the sample size is small, the correction factor is not used since it will be very close to 1.
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true
false
Q 2/40
Score 0
The expression below is called
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Finite population correction factor
Finite population correlation factor
Infinite population correction factor
Infinite population correlation factor
40 questions
Q.
True or False: When the population is large and the sample size is small, the correction factor is not used since it will be very close to 1.
1
30 sec
Q.
The expression below is called
2
30 sec
Q.
What type of population consists of fixed number of elements, measurements, or observation?
3
30 sec
Q.
The standard deviation of the sampling distribution of the sample mean is also known as
4
30 sec
Q.
A good estimate of the mean is obtained if the standard error of the mean is
5
30 sec
Q.
When sample size (n) increases, the standard error of the mean
6
30 sec
Q.
True or False: Population mean is always higher than the mean of the sampling distribution of sample means.
7
30 sec
Q.
This consists of means derived from all possible random samples of specific size obtained from a population
8
30 sec
Q.
In sampling distribution of sample means, the means of the samples are less or greater than the mean of the population. What is the difference between sample mean and population mean called?
9
30 sec
Q.
How many possible of size n=2 can be drawn from a population of size 5?
10
45 sec
Q.
Which sample size will give a smaller standard error of the mean
11
30 sec
Q.
βAs the sample size n increases, the shape of the distribution of the sample means taken with replacement from a population with mean Β΅ and the standard deviation Ο will approach a normal distributionβ this statement is better known as
12
30 sec
Q.
Given the population 1, 2, 4, 2, and 1, suppose samples of size 3 are drawn from this population. What is the mean of the population?
13
45 sec
Q.
Given the population 1, 2, 4, 2, and 1, suppose samples of size 3 are drawn from this population. What is the mean of the sampling distribution of sample means?
14
45 sec
Q.
A random sample of size n=50 measurements is obtained from a population with Β΅=25 Ο=3. What is the standard error of the mean? (Assume that the population is infinite)
15
45 sec
Q.
A random sample of size n=100 measurements is obtained from a population with Β΅=50 Ο=10. What is the standard error of the mean? (Assume that the population is infinite)
16
45 sec
Q.
A random sample of size n=50 measurements is obtained from a population with Β΅=25 Ο=3. What is the mean of the sampling distribution of sample means? (Assume that the population is infinite)
17
30 sec
Q.
A random sample of size n=100 measurements is obtained from a population with Β΅=50 Ο=10. What is the mean of the sampling distribution of sample means? (Assume that the population is infinite)
18
30 sec
Q.
True or False: The Central Limit Theorem applies automatically to sampling from infinite population.
19
30 sec
Q.
A certain population has a mean of 10.3 and a standard deviation of 2.4. If random samples of size 10 is taken this population, which of the following statements is correct?
20
30 sec
Q.
What is the shape of the sampling distribution of the means if random samples of size n become larger?
21
30 sec
Q.
If the variance of a certain infinite population is 10, what is the variance of the sampling distribution of the means of size 5 is drawn from this population?
22
45 sec
Q.
The average number of pushups a United States Marine does daily is 300, with a standard deviation of 50. A random sample of 36 Marines is selected. What is the probability that the sample mean is at most 320 push ups?
23
60 sec
Q.
A bottling company uses a filling machine to fill plastic bottles with a popular cola. The bottles are supposed to contain 300 milliliters (ml). In fact, the contents vary according to a normal distribution with mean Β΅ = 303 ml and standard deviation Ο = 3 ml. What is the probability that the mean contents of the 10 bottles is less than 300 ml?
24
60 sec
Q.
A population has a normal distribution with a mean of 50 and a standard deviation of 10. If a random sample of size 9 is taken from the population, then what is the probability that this sample mean will be between 48 and 54?
25
120 sec
Q.
The heights of male college students are normally distributed with a mean of 68 inches and standard deviation of 3 inches. If 25 students are drawn from this population, what would be the expected mean of the resulting sampling distribution of sample means?
26
30 sec
Q.
Which of the following refers to the proportion of the population that has the characteristic being sought?
27
30 sec
Q.
The point estimator of the population proportion is called
28
30 sec
Q.
Which of the following refers to the proportion of the sample that does NOT have the characteristic being looked for?
29
30 sec
Q.
In a job satisfaction survey in Robinson's Galleria, 500 employees were asked if they were satisfied with their jobs. There were 334 who responded with a YES. What proportion responded with a NO?
30
45 sec
Q.
A sample of 50 parents was asked to know the proportion of them that has a child studying in college. It was found out that 34 of them have a child in college. Solve for q-hat.
31
45 sec
Q.
A sample of 50 parents was asked to know the proportion of them that has a child studying in college. It was found out that 34 of them have a child in college. Solve for pΜ.
32
45 sec
Q.
A sample of 60 journalists was asked to determine how many of them focuses on sports. It was determined that 25 of them do. Solve for the q-hat.
33
45 sec
Q.
A sample of 60 journalists was asked to determine how many of them focuses on sports. It was determined that 25 of them do. Solve for the sample proportion.
34
45 sec
Q.
Which of the following illustrates confidence level?
35
30 sec
Q.
Which of these illustrates confidence interval?
36
30 sec
Q.
It is a value or a range of values that approximate a parameter. It is based on sample statistics computed from sample data.
37
30 sec
Q.
Which of the following is the best point estimate?
38
30 sec
Q.
What do you call the set of all people, objects, events, or ideas you want to investigate?
39
30 sec
Q.
The descriptive measure computed from a population is called
