last na po pls bago matapos buhay q jk
The confidence level is expressed in terms of ____________.
a.
Percentage
b.
Whole Number
c.
Fraction
d.
Ratio
In Central Limit Theorem, the standard deviation of the population is estimated by dividing the standard deviation of the population by the square of the sample size.
a.
The statement is SOMETIMES FALSE
b.
The statement is FALSE
c.
The statement is SOMETIMES TRUE
d.
The statement is TRUE
Confidence coefficient is a single value given as an estimate of a parameter of a population.
a.
FALSE. Change “confidence coefficient” to confidence limit
b.
FALSE. Change “confidence coefficient” to Confidence Limit
c.
TRUE
d.
FALSE. Change “confidence coefficient” to sample mean
Point estimate is always equal to the sampling coefficient.
a.
TRUE
b.
FALSE. Change the statement to “Point estimate is equal to the number of samples”
c.
FALSE. Change the statement to “Point estimate is used to estimate population parameter”
d.
FALSE. Change the statement to “Point estimate is a range of possible values of population mean”
A single value given as an estimate of a parameter of a population.
a.
Sample Mean
b.
Sample distribution
c.
Confidence coefficient
d.
Confidence Limit
A 95% confidence interval means 95% of all samples of size n would fall _____ our confidence interval.
a.
Below
b.
None of the choices
c.
Within
d.
Above
e.
Outside
Which of the following is used to estimate population parameter?
a.
Mean Estimate
b.
Central Limit Theorem Estimate
c.
Point Estimate
d.
Biased Estimate
This is a representative subset of a population.
a.
Sample
b.
Statistics
c.
Standard Deviation
d.
Mean
Confidence level indicates the level of assurance that confidence interval encloses the:
a.
unbiased sample
b.
known population mean
c.
biased sample
d.
unknown population mean
The number of times out of 100 that the repeated experiment would be expected to capture the population mean within the given interval.
a.
Z scores
b.
Empirical Rule
c.
Confidence Interval
d.
Confidence Level
Population Mean is an example of a parameter.
a.
None of the choices
b.
TRUE
c.
Maybe
d.
FALSE
These are numbers that summarizes data from a sample.
a.
Sample
b.
Statistics
c.
Mean
d.
Standard Deviation
A curve is said to be symmetric if all data points lies at the right side of the curve.
a.
The statement is TRUE
b.
The statement is SOMETIMES TRUE
c.
The statement is FALSE
d.
The statement is SOMETIMES FALSE
The range of possible values expected to capture the population mean is called the Margin of Error.
a.
FALSE
b.
TRUE
True or False: Standard deviation of a distribution of means is the standard error of the mean.
In a normal curve, a Answer
of 1 means 1 deviation data are above the average.
PROBLEM SOLVING: Write the answer corresponds to the problem.
REMINDERS
If the answer requires decimals, express your answer in 2 decimal places.
If your answer is more than 3 digits, DO NOT INCLUDE THE COMMA.
Compute for the mean expenses of the XYZ Corporation given the following:
Name Total Sales Total Expenses
Quezon City 14,950.00 4,933.50
Caloocan City 18,290.00 6,035.70
Marikina City 37,200.00 12,276.00
Cebu City 18,900.00 6,237.00
Davao City 45,000.00 14,850.00
Mandaluyong City 23,000.00 7,590.00
Cavite 22,000.00 7,260.00
Laguna 21,000.00 6,930.00
Manila 66,000.00 21,780.00
Iloilo 34,000.00 11,220.00
True or False: Empirical Rule states that 68% of the data falls within the 1 standard deviation.
A single value given as an estimate of a parameter of a population.
a.
Confidence Limit
b.
Confidence coefficient
c.
Sample distribution
d.
Sample Mean
For example, a 90% confidence interval covers 90% of the normal curve, so the probability of observing a value outside of this area is ____________.
a.
Less than 10%
b.
Greater than 10%
c.
Lower than the 2 nd standard deviation
d.
Higher than the 2 nd standard deviation
