BUSINESS STAT FINAL NEWEST
EXAM 2025/2026 WITH MULTIPLE
CHOICE QUESTIONS AND DETAILED
SOLVED SOLUTION ALREADY
GRADED A+ AND 100% GUARANTEE
PASS (JUST RELEASED!!!!!!!)
It has been reported that the average time to download the
home page from a government website was 0.9 seconds.
Suppose that the download times were normally distributed
with a standard deviation of 0.3 seconds. If random samples of
36 download times are selected, what is the probability that the
sample mean will be less than 0.84 seconds?
.1151
.4522
.8849
.5478 - THE CORRECT ANSWER-.1151
A random sample of size 1,000 is taken from a population
where p = .20. Find P ( p < .22).
,.2643
.9429
.9207
.0571 - THE CORRECT ANSWER-.9429
Z = (.22-.20)/ square root of (((.2)(.8))/1000)=0.02/0.01265 =
1.58
P ( p < .22) = 0.9429
As the sample size ______________ the variation of the
sampling distribution of Picture ___________.
Decreases, decreases
Increases, remains the same
Decreases remains the same
Increases, decreases
None of the above - THE CORRECT ANSWER-Increases, decreases
The mean of the sampling distribution of the sample proportion
is equal to _____ when the sample size is sufficiently large.
,μ
p
p*n
(1-p) - THE CORRECT ANSWER-p
The College Student Journal (December 1992) investigated
differences in traditional and nontraditional students, where
nontraditional students are defined as 25 years or older and
working. Based on the study results, we can assume the
population mean and standard deviation for the GPA of
nontraditional students is µ = 3.5 and σ = 0.5. Suppose a
random sample of 100 nontraditional students is selected and
each student's GPA is calculated. Find the interval that contains
95.44% of the sample means for nontraditional students.
[3.45 3.55]
[2.50 4.50]
[3.35 3.65]
[3.40 3.60] - THE CORRECT ANSWER-[3.40 3.60]
, If we have a sample size of 100 and the estimate of the
population proportion is .10, the mean of the sampling
distribution of the sample proportion is:
0.0009
0.10
0.03
0.90
0.09 - THE CORRECT ANSWER-NOT 0.03
sp = square root p * (1-p)/n = square root of .1 * . = 0.03
The population of lengths of aluminum-coated steel sheets is
normally distributed with a mean of 30.05 inches and a
standard deviation of 0.2 inches. What is the probability that
randomly selected 4 sheets will have an average length of less
than 29.9 inches long?
0.0668
0.9332
0.0014
EXAM 2025/2026 WITH MULTIPLE
CHOICE QUESTIONS AND DETAILED
SOLVED SOLUTION ALREADY
GRADED A+ AND 100% GUARANTEE
PASS (JUST RELEASED!!!!!!!)
It has been reported that the average time to download the
home page from a government website was 0.9 seconds.
Suppose that the download times were normally distributed
with a standard deviation of 0.3 seconds. If random samples of
36 download times are selected, what is the probability that the
sample mean will be less than 0.84 seconds?
.1151
.4522
.8849
.5478 - THE CORRECT ANSWER-.1151
A random sample of size 1,000 is taken from a population
where p = .20. Find P ( p < .22).
,.2643
.9429
.9207
.0571 - THE CORRECT ANSWER-.9429
Z = (.22-.20)/ square root of (((.2)(.8))/1000)=0.02/0.01265 =
1.58
P ( p < .22) = 0.9429
As the sample size ______________ the variation of the
sampling distribution of Picture ___________.
Decreases, decreases
Increases, remains the same
Decreases remains the same
Increases, decreases
None of the above - THE CORRECT ANSWER-Increases, decreases
The mean of the sampling distribution of the sample proportion
is equal to _____ when the sample size is sufficiently large.
,μ
p
p*n
(1-p) - THE CORRECT ANSWER-p
The College Student Journal (December 1992) investigated
differences in traditional and nontraditional students, where
nontraditional students are defined as 25 years or older and
working. Based on the study results, we can assume the
population mean and standard deviation for the GPA of
nontraditional students is µ = 3.5 and σ = 0.5. Suppose a
random sample of 100 nontraditional students is selected and
each student's GPA is calculated. Find the interval that contains
95.44% of the sample means for nontraditional students.
[3.45 3.55]
[2.50 4.50]
[3.35 3.65]
[3.40 3.60] - THE CORRECT ANSWER-[3.40 3.60]
, If we have a sample size of 100 and the estimate of the
population proportion is .10, the mean of the sampling
distribution of the sample proportion is:
0.0009
0.10
0.03
0.90
0.09 - THE CORRECT ANSWER-NOT 0.03
sp = square root p * (1-p)/n = square root of .1 * . = 0.03
The population of lengths of aluminum-coated steel sheets is
normally distributed with a mean of 30.05 inches and a
standard deviation of 0.2 inches. What is the probability that
randomly selected 4 sheets will have an average length of less
than 29.9 inches long?
0.0668
0.9332
0.0014
