Suppose a 95% confidence interval for obtained from a random
sample of size 13 is (3.5990,...
Suppose a 95% confidence interval for obtained from a random
sample of size 13 is (3.5990, 19.0736). Find the upper bound of a
90% confidence interval for (round off to the nearest integer).
Suppose a 95% confidence interval for obtained from a random
sample of size 13 is (3.5990, 19.0736). Find the upper bound of a
90% confidence interval for (round off to the nearest integer).
13) What is the minimal sample size needed for a 95% confidence
interval to have a maximal margin of error of 0.1 in the following
scenarios? (Round your answers up the nearest whole number.) (a) a
preliminary estimate for p is 0.28 (b) there is no preliminary
estimate for p
The 95% confidence interval for the mean, calculated from a
sample of size n = 25 is 2.233163 ≤ μ ≤ 3.966837 . Determine the
sample mean X ¯ = (round to the first decimal place). Assuming that
the data is normally distributed, determine the sample standard
deviation s = (round to the first decimal place)
A random sample of size n=500 yielded p̂ =0.08
a) Construct a 95% confidence interval for p.
b) Interpret the 95% confidence interval.
c) Explain what is meant by the phrase "95% confidence
interval."
2. What is the sample size, n, for a 95% confidence interval on
the mean, if we know that the process’ standard error is 3.2 units,
and we want to allow at most 1.0 units for our error?
3. Let’s say that you just randomly pulled 32 widgets from your
production line and you determined that you need a sample size of
46 widgets, However, you get delayed in being able to pull another
bunch of widgets from the line...
1 Joe computed a 95% confidence interval for µ from a specific
random sample. His confidence interval was 10.1<µ<12.2. He
claims that the probability that µ is in this interval
0.95. What is wrong with his claim? Explain.
2. Consider a test for µ. If the P-value is such that you can
reject H0 for α=0.01, can you always reject H0 for α =0.05?
Explain.
PLZ PLZ help me with 1 and 2 and plz write in your own words...
Suppose a simple random sample of size nequals200 is obtained
from a population whose size is Upper N equals 15 comma 000 and
whose population proportion with a specified characteristic is p
equals 0.6 . (a) Describe the sampling distribution of
ModifyingAbove p with caret. Choose the phrase that best describes
the shape of the sampling distribution below. A. Approximately
normal because n less than or equals 0.05 Upper N and np left
parenthesis 1 minus p right parenthesis less...
What is the minimal sample size needed for a 95% confidence
interval to have a maximal margin of error of 0.1 in the following
scenarios? (Round your answers up the nearest whole number.)
(a) a preliminary estimate for p is 0.16
(b) there is no preliminary estimate for p
What is the minimal sample size needed for a 95% confidence
interval to have a maximal margin of error of 0.1 in the following
scenarios? (Round your answers up the nearest whole number.)
(a) a preliminary estimate for p is 0.28
(b) there is no preliminary estimate for p