Question
In: Statistics and Probability
Raphael is an American male in the 60th percentile in height. The height data is normally...
Raphael is an American male in the 60th percentile in height. The height data is normally distributed. Assume N ( (μ = 70, σ = 3.3 inches) . How tall is Raphael to the nearest inch? a) 71 inches b) 73 inches c) Can do this without a z-score table or calculator (not a correct answer) d) 68 inches
Solutions
orchestra answered 1 year agoRelated Solutions
A 98% confidence interval for the average height of the adult American male if a sample...
A 98% confidence interval for the average height of the adult
American male if a sample of 286 such males have an average height
of 59.3 inches with a population deviation of 4.3 inches
round to the nearest hundredth of an inch
The average of height of male adults is normally distributed with a mean of 69.1 inches...
The average of height of male adults is normally distributed
with a mean of 69.1 inches and standard deviation of. 2.9. above
what height would an adult male need to be in the top 10% by
height?
Answer is k=72.812. Please explain how to do this
The average of height of male adults is normally distributed with a mean of 69.1 inches...
The average of height of male adults is normally distributed
with a mean of 69.1 inches and standard deviation of. 2.9. above
what height would an adult male need to be in the top 10% by
height?
Answer is k=72.812. Please explain how to do this
The height, X , of American teens is distributed normally with a mean u = 65.5...
The height, X , of American teens is distributed
normally with a mean u = 65.5 inches and the standard deviation o =
2.5 inches. Find the probability of each of the following
events.
a. ? < 67 inches
b. 64 < X < 67 inches
Adult male height is normally distributed with a mean of 69.2 inches and a standard deviation...
Adult male height is normally distributed with a mean of 69.2
inches and a standard deviation of 2.28 inches.
a) If an adult male is randomly selected, what is the
probability that the adult male has a height greater than 69.1
inches? Round your final answer to four decimal places.
b) If 28 adult male are randomly selected, what is the
probability that they have a mean height greater than 70 inches?
Round your final answer to four decimal places.
Height of 18-year-old male are normally distributed with a mean of 68 inches and a standard...
Height of 18-year-old male are
normally distributed with a mean of 68 inches and a standard
deviation of 3 inches. If a random sample of nine 18-year-old males
are selected, what is the probability that the mean height
x of the random sample of 9 is greater than 69 inches?
Suppose I know that my son’s height is at the 65th percentile for his age (that...
Suppose I know that my son’s height is at the 65th
percentile for his age (that is, 65% of the kids his age is shorter
than him). Then his z-score is _0.35845879. Suppose I
was at the 30th percentile in height when I was 8 years
old. That means that my z-score was ___.
Hint: I find the z-score for the 84th percentile by
typing display invnormal(0.84)
Hint: the proportion of grades between 2 SDs above the mean and
1...
a) What is the adult male height at 80 %? where the mean height is 73...
a) What is the adult male height at 80 %? where the mean height
is 73 inches and the standard deviation is 3.3.
b) What is the score of Jake at 37 %? if the SAT (μ =1500, σ
=300).
c) IQ test scores are normally distributed with a mean of 100
and a standard deviation of 15. Find the x-score that corresponds
to a z-score of 2.33.
A data set of 27 male African elephants shows that their weights are normally distributed, and...
A data set of 27 male African elephants shows that their weights
are normally distributed, and have an average weight of 111 kg,
with a 95% confidence interval of (104, 119). I was asked to find
an appropriate hypothesis test for this data set, and do the
calculations and interpret the data, but if I feel that there are
no natural hypothesis testing to carry out, then I should state why
not. I personally feel there is no natural hypothesis...
The height of all adult females in Georgia is normally distributed with a mean height of...
The height of all
adult females in Georgia is normally distributed with a mean height
of 67.4 inches and a standard deviation of 2.8 inches. A random
sample of 4 females from Georgia are selected. What is the
probability the mean height of the 4 females is greater than 68.4
inches?
Do not round any
values until you get to your final answer. Round your final answer
to three decimals of accuracy (e.g. 0.08493 would round to
0.085)
Your Answer:
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