Question

A soccer ball manufacturer wants to estimate the mean circumference of many soccer balls with their 0.15" assume the population of circumferences is normally distributed

Answer #1

Your question is incomplete but i think my question is the same you want to ask

A soccer ball manufacturer wants to estimate the mean circumference of mini-soccer balls within 0.15 inch. Assume the population of circumferences is normally distributed. (a) Determine the minimum sample size required to construct a 99% confidence interval for the population mean. Assume the population standard deviation is 0.20 inch. (b) Repeat part (a) using a population standard deviation of 0.10 inch. (c) Which standard deviation requires a larger sample size? Explain.

) A soccer ball manufacturer wants to estimate the mean
circumference of soccer balls within 0.15 inch.
Determine the minimum sample size required to construct a 99%
confidence interval for the population mean. Assume that the
population standard deviation is 0.5 inch.
The sample mean is 27.5 inches. With a sample size of if 84, a
99% level of confidence, and a population standard deviation of
0.5inch, does it seem possible that the population mean could be
less than...

A soccer ball manufacturer wants to estimate the mean
circumference of soccer balls within 0.15 inch.
a. Determine the minimum sample size required to construct a 99%
confidence interval for the population mean. Assume that the
population standard deviation is 0.5 inch.
b. The sample mean is 27.5 inches. With a sample size of if 84,
a 99% level of confidence, and a population standard deviation of
0.5inch, does it seem possible that the population mean could be
less than...

A soccer ball manufacturer wants to estimate the mean
circumference of soccer balls within 0.14 inch.
(a) Determine the minimum sample size required to construct a
99% confidence interval for the population mean. Assume the
population standard deviation is 0.7 inch.
(b) The sample mean is 27.2 inches. With a sample size of 175,
a 99% level of confidence, and a population standard deviation of
0.7 inch, does it seem possible that the population mean could be
less than 27.3...

Find the minimum sample size for the following: A soccer ball
manufacturer wants to estimate the mean circumference of soccer
balls to within 0.2 of an inch. Determine the minimum sample size
required to have the 90% confident interval for the population
parameter μ. Assume the population standard deviation is 0.3
inches.
Please show all work or if you used a TI 84 please explain the
necessary steps to get the answer, thank you for the help :)

Sialkot-Soccer (SS) has been in the business of manufacturing,
distributing, and marketing soccer related products for over 10
years. One aspect of their business that is critical is ensuring
the specifications of their professional class balls. One element
of concern is the diameter of a soccer ball. If the ball is too big
or small, regulators will not allow it to be used and fines will be
issued. The diameter of soccer balls manufactured at Sialkot-Soccer
(SS)’s Canadian manufacturing house,...

A car manufacturer makes a certain transmission gear with a mean
circumference of 11 mm. This
is the size that allows the gear to fit precisely into the
transmission to avoid unnecessary wear and
tear on the transmission’s other moving parts. The manufacturing
process is not perfect, so there
is some variation in the circumference of the gear. The
circumference measurements are
normally distributed, and the standard deviation of the gear’s
circumference is 0.05mm.
a. Find the probability that a...

Women have head circumferences that are normally distributed with a
mean given by 22.13 and a standard deviation given by 0.9. Complete
parts a through c.
A. If a hat company produces women’s hats so that they fit
head circumferences between 21.9 and 22.9 what is the probability
that a randomly selected women will be able to fit into one of
these hats?
The probability is..
B. If the company wants to produce hats to fill all women
except for...

The diameter of a brand of tennis balls is approximately
normally distributed, with a mean of 2.55 inches and a standard
deviation of 0.06 inch. A random sample of 12
tennis balls is selected. Complete parts (a) through (d)
below.
a. What is the sampling distribution of the mean?
A. Because the population diameter of tennis balls is
approximately normally distributed, the sampling distribution of
samples of size 12 will be the uniform distribution.
B. Because the population diameter of...

Women have head circumferences that are normally distributed
with a mean given by u= 23.76in, and a standard deviation given by
o= 1.1in.
a. If a hat company produces women's hats so that they fit head
circumferences between 23.1 in. and 24.1 in., what is the
probability that a randomly selected woman will be able to fit into
one of these hats? The probability is . 4165. (Round to four
decimal places as needed.)
b. If the company wants to...

Women have head circumferences that are normally distributed
with a mean given by mu equals 24.24 inμ=24.24 in.,and a standard
deviation given by sigma equals 1.2 in.
Complete parts a through c below.
a. If a hat company produces women's hats so that they fit head
circumferences between
23.7 and 24.7 what is the probability that a randomly selected
woman will be able to fit into one of these hats?
(Round to four decimal places as needed.)
b. If the...

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