Question
In: Statistics and Probability
A sample of 125 is drawn from a population with a proportion equal to 0.45. a....
A sample of 125 is drawn from a population with a proportion equal to 0.45.
a. Determine the probability of observing between 50 and 54 successes.
b. Determine the probability of observing between 55 and 62 successes.
c. Determine the probability of observing between 53 and 70 successes.
Solutions
Expert Solution
Given :
A sample of 125 is drawn from a population with a proportion equal to 0.45
Binomial distribution
n = 125 & p = 0.45
= n×p = 125 × 0.45 = 56.25
= √np(1-p) = √56.25(1-0.45) = 5.5621
orchestra answered 1 year agoRelated Solutions
A sample of 125 is drawn from a population with a proportion equal to 0.44 a....
A sample of 125 is drawn from a population with a proportion
equal to 0.44
a. Determine the probability of observing between 50 and 54
successes.
b. Determine the probability of observing between 55 and 62
successes.
c. Determine the probability of observing between 53 and 70
successes.
A) A sample of 150 is drawn from a population with a proportion equal to 0.40....
A) A sample of 150 is drawn from a population with a proportion
equal to 0.40. Determine the probability of observing between 49
and 54 successes.
P(Observing between 49 and 54 successes)equals=
B) A professional baseball pitcher takes 15.83 seconds to throw
each pitch, on average. Assume the pitcher's times per pitch
follow the normal probability distribution with a standard
deviation of 2.2 seconds. Complete parts a through d.
a. What is the probability that a random sample of 20...
If a random sample of 125 items is taken from a population in which the proportion...
If a random sample of 125 items is taken from a population in
which the proportion of items having a desired attribute is p =
0.16, what is the probability that the proportion of successes in
the sample will be more than 0.2?
Given that the population proportion is 0.6, a sample of size 1200 is drawn from the...
Given that the population proportion is 0.6, a sample of size
1200 is drawn from the population.
(a) Find the mean and variance of the sampling distribution of
sample proportion.
(b) Find the probability that the sample proportion is less than
0.58.
(c) If the probability that the sample proportion is greater
than k is 0.6, find the value of k.
13.If a random sample of 125 items is taken from a population in which the proportion...
13.If a random sample of 125 items is taken from a population in
which the proportion of items having a desired attribute is p =
0.16, what is the probability that the proportion of successes in
the sample will be more than 0.2?
A random sample of n=64 observations is drawn from a population with a mean equal to...
A random sample of n=64 observations is drawn from a population
with a mean equal to 51 and a standard deviation equal to 32.
a. Find the probability that overbar x is less than 43.
b. Find the probability that overbar x is greater than 57.
c. Find the probability that x over bar x falls between 43 and
59.
(Round to three decimal places as
needed.)
A sample selected from a population gave a sample proportion equal to 0.61 . Round your...
A sample selected from a population gave a sample proportion
equal to 0.61 .
Round your answers to three decimal places.
a. Make a 98 % confidence interval for p assuming
n = 75 .
( Enter your answer; confidence interval assuming n=75, lower bound
,Enter your answer; confidence interval assuming n=75, upper
bound )
b. Construct a 98 % confidence interval for p
assuming n = 625 .
( Enter your answer; confidence interval assuming n=625, lower
bound ,Enter your...
Construct a 95% confidence interval to estimate the population proportion with a sample proportion equal to...
Construct a 95% confidence interval to estimate the population
proportion with a sample proportion equal to
0.45 and a sample size equal to 120.
----- A 95% confidence interval estimates that the population
proportion is between a lower limit of
___ and an upper limit of ___
????
Construct a 99% confidence interval to estimate the population proportion with a sample proportion equal to...
Construct a 99% confidence interval to estimate the population
proportion with a sample proportion equal to 0.90 and a sample size
equal to 250.
------A 99% confidence interval estimates that the population
proportion is between a lower limit of ___ and an upper limit of
___.
????????
Construct a 99% confidence interval to estimate the population proportion with a sample proportion equal to...
Construct a 99% confidence interval to estimate the population
proportion with a sample proportion equal to 0.50 and a sample size
equal to 200. LOADING... Click the icon to view a portion of the
Cumulative Probabilities for the Standard Normal Distribution
table. A 99% confidence interval estimates that the population
proportion is between a lower limit of nothing and an upper limit
of nothing. (Round to three decimal places as needed.)
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- identify one intrapersonal relationship and evaluate its component.
- Using Python in vs code: The distribution of letters in a document has a distinctive and...
- Why is De Beers exploring the diamond reselling market? How does the creation of IIDV affect...
- programming in Python The body mass index (BMI) is calculated as a person’s weight (in lb)...
- 1. Show the steps in merging A and B into C where A= 8, 12, 19,...
- 1. Given the following information, determine the beta coefficient for Stock L that is consistent with...
- Generate the first ten rows of Pascal triangle using MATLAB. Post code in the response
ADVERTISEMENT