Question

What conditions need to be satisfied to use the normal approximation for proportions? Use an example.

Answer #1

What conditions need to be satisfied to use the normal
approximation for proportions? Use an example if necessary.
Remember to comment on your classmates posts.

For which of the following binormial distributions are the
conditions for the normal approximation to the binomial
distribution satisfied?
a. = 40, p = 0.9
b. = 400, p = 0.99
c. = 20, p = 0.2
d. = 20, p = 0.3

The one-sample z-test for proportions determines the p-value
using the “normal approximation method”. This method approximates
the exact p-value that would have been found if the binomial
formula were used. But, the “normal approximation method” only
works well when the sample size is “large enough”.
a. If the hypothesis test is done by hand, why do you think we
use the “normal approximation method” for large sample sizes
instead of using the binomial formula to find p-values?
b Why do...

Determine if the conditions required for the normal
approximation to the binomial are met. If so, calculate the test
statistic, determine the critical value(s), and use that to decide
whether there is sufficient evidence to reject the null hypothesis
or not at the given level of significance.
H0 : p=0.139H0 : p=0.139
H1 : p < 0.139H1 : p < 0.139
xn α =5=80=0.025x=5n=80 α =0.025
Standard Normal Distribution Table
a. Calculate the test statistic.
z=z=
Round to two decimal...

What are the conditions that must be satisfied for a non-current
asset to be reclassified as held-for-sale?

10. Twenty percent of the students in Quant 2600 are female. Use
the normal approximation of the binomial probabilities to answer
the following questions. What is the probability that in a random
sample of 100 employees a. What is expected value (mean) of the
number of females in the class? You will need this for parts c and
d. b. What is the standard deviation for the number of females in
the class? Use 2 decimal places. You will need...

A
die is rolled 360 times. Let say that you want to use normal
approximation to find the probability that the number of 4 was
rolled less than 100 times. You need to find the probability that
X<100. Explain how you would use continuity correction in this
case.

A die is rolled 360 times. If you want to use normal
approximation to find the probability that the number of 4 was
rolled at least 100 times,what is the mean of the normal
distribution that you would use in this case.

Use the normal approximation of the binomial to find the
probability of getting between 12 to 16 heads in 36-coin flips.

a)Use a normal approximation to find the probability of the
indicated number of voters. In this case, assume that 111 eligible
voters aged 18-24 are randomly selected. Suppose a previous study
showed that among eligible voters aged 18-24, 22% of them
voted.Probability that fewer than 29 voted.
The probability that fewer than 29 of 111 eligible voters voted
is ___ Round to 4 decimal points.
b)If np ≥5 and nq ≥5, estimate P(at least 8) with n equals=13
and p...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 5 minutes ago

asked 7 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 34 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 3 hours ago