Question
In: Statistics and Probability
The chickens at Colonel Thompson's Ranch have a mean weight of 1850g, with a standard deviation...
The chickens at Colonel Thompson's Ranch have a mean weight of
1850g, with a standard deviation of
150g. The weights of the chickens are closely approximated by a normal curve. Find the percent of all chickens having weights more than 2066g or less than
1420g
g.
Solutions
orchestra answered 1 year agoRelated Solutions
Horses in a stable have a mean weight of 950 pounds with a standard deviation of...
Horses in a stable have a mean weight of 950 pounds with a standard
deviation of 77 pounds. Weights of horses follow the normal
distribution. One horse is selected at random.
a. What is the probability that the horse weighs less than 900
pounds?
b. What is the probability that the horse weighs more than
1,100 pounds?
c. What is the probability that the horse weighs between 900
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d. What weight is the 90th percentile? (round to...
Suppose cattle in a large herd have a mean weight of 1158lbs and a standard deviation...
Suppose cattle in a large herd have a mean weight of 1158lbs and
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mean by more than 12lbs if 55 cows are sampled at random from the
herd? Round your answer to four decimal places.
Suppose cattle in a large herd have a mean weight of 1158lbs and a standard deviation...
Suppose cattle in a large herd have a mean weight of 1158lbs and
a standard deviation of 92lbs . What is the probability that the
mean weight of the sample of cows would differ from the population
mean by less than 12lbs if 55 cows are sampled at random from the
herd? Round your answer to four decimal places.
onuts have weight taht are normally distributed with a mean 80 grams and standard deviation of...
onuts have weight taht are normally distributed with a
mean 80 grams and standard deviation of 6 grams . they sold in
packeages containing 12 randomly selected donuts.
a) what percentage of the donuts wiegh more than 75 grams ?
b)what is the probablity that the total weigh of the donuts package
is less than 900 grams?
In a sample of 51 babies, the mean weight is 21 pounds and the standard deviation...
In a sample of 51 babies, the mean weight is 21 pounds and the
standard deviation is 4 pounds.
Calculate a 95% confidence interval for the true mean weight of
babies. Suppose we are interested in testing if the true mean
weight of babies is 19.4 vs the alternative that it is not 19.4
with an alpha level of .05. Would this test be significant? Explain
your answer.
Perform the t test and use a t-table to get the p-value
the mean weight of loads of rock is 47.0 tons with a standard deviation of 8.0...
the mean weight of loads of rock is 47.0 tons with a standard
deviation of 8.0 tons. if 24 loads are chosen at random for a
weight check, find the probability that the mean weight of those
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The mean weight of a fire ant worker is 3.11 mg with a standard deviation of...
The mean weight of a fire ant worker is 3.11 mg with a
standard deviation of 0.49 mg. Let us assume that the weight of any
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typical fire ant colony contains 240,000 fire ant workers. Suppose
we look at the weight of each ant in a typical fire ant colony. Let
M be the random variable representing the mean weight of all the
worker ants in the...
The mean weight of a fire ant worker is 3.11 mg with a standard deviation of...
The mean weight of a fire ant worker is 3.11 mg with a standard
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a) What...
Suppose babies born in a large hospital have a mean weight of 4022 grams, and a standard deviation of 266 grams.
Suppose babies born in a large hospital have a mean weight of 4022 grams, and a standard deviation of 266 grams. If 53 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would differ from the population mean by more than 45 grams? Round your answer to four decimal places.
The mean weight of students from a certain university is 70 kg with a standard deviation...
The mean weight of students from a certain university is 70 kg
with a standard deviation
of 17 kg. i.
ii. iii.
Assume that the weights of students in the university are
normally distributed.
What is the probability that the weight of a randomly chosen
student is greater than 100 kg?
What is the probability that the weight of a randomly chosen
student is between 60 kg and 80 kg?
If you were to take a sample of 16 students,...
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