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The distance l from a point at a height h above the Earth's surface to the horizon can be approximated using Pythagoras' theorem by the expression:
(a) Find an expression which serves as a linear approximation for l at h=1000 m.
(b) Give two assumptions you think have been made in deriving the expression above.
a group of 49 randomly selected students has a mean age of 22.4 years with a standard deviation of 3.8. construct a 98
Why is it important to know the standard deviation for a given sample? What do researchers learn about a normal distribution from knowledge of the standard deviation?
let x be normally distributed random variable with mean u and variance s2 4.84. determine the the size of the sample
a catalyst researcher states that the diameter in microns of the pores in a new product she has made have exponential
Why is a two-way between-subjects factorial ANOVA the correct statistic to use for this research design?
A sample of 64 account balances from a credit card company showed an average balance of $1,040. A previously determined population standard deviation is $200.
Cash back when they make a purchase at a shoe store. or C. an entry into a sweepstakes when they make a purchase. I need to determine the probability of each option.
if you wish to estimate a population mean with a sampling distribution error se0.24 using a 95 confidence interval and
Professor Jennings claims that only 35% of the students at Flora College work while attending school. The dean thinks that the prof. has underestimated the number of students with part-time or full-time jobs.
If a male soldier and female soldier are paired up what will be the mean and standard deviation for the difference in heights for each possible pair?
Assume duration of human pregnancies follow mound-shaped distribution with mean of 266 days and the standard deviation of 16 days.
the lifespan of a particular brand of light bulb is normally distributed with a mean life of 400 h and a standard
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