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suppose the daily amount of solar radiation in los angeles is normally distributed with mean 450 calories and standard
a large computer company claims that their salaries are normally distributed with mean 50000 and standard deviation
1 assume that the income of pediatricians is normally distributed with mean mu 100000 and standard deviation sigma
a manufacturer of car batteries claims that the life of their batteries is normally distributed with mean mu 58 months
a machine to measure the bounce of a ball is used on 45 randomly selected tennis balls experience has shown that the
the weight of trout sold at a trout farm has a standard deviation of 25based on a sample of 10 trout the average weight
the length of a bolt made by a machine parts company is a normal random variable with standard deviation sigma equal to
1 for the following situations a n 12 sigma 22 x 65 b n 22 sigma 10 x 185 c n 50 sigma 30 xmacr 19 compute a
for the values 2 3 5 6 8 12 14 18 19 22 201 why would you suspect that the mckean-schrader estimate of the standard
1 summarize when it would and would not be reasonable to assume that the sampling distribution of m is normal2 for the
1 for the data in problem 25 why would you suspect that the standard error of the sample mean will be larger than the
under normality the sample mean has a smaller standard error than the 20 trimmed mean or median if observations are
if the sample mean and 20 trimmed mean are nearly identical it might be thought that for future studies it will make
a manufacturer claims that their light bulbs have an average life span that follows a normal distribution with mu 1200
1 for a binomial with n 7 and p 35 what is the probability of exactly 2 successes2 for a binomial with n 18 and p 6
coleman 1964 interviewed 3398 schoolboys and asked them about their self-perceived membership in the leading crowd
for the following probabilitiesageincomehighmediumlowlt3003018009030-50052312156gt50018108054determine a the
given table shows the exam scores for 27 students create a stem-and-leaf display using the digit in the ones position
1 if the leaf is the hundredths digit what is the stem for the number 346792 consider the values 5134 5532 5869 5809
1 describe a situation where the sample histogram is likely to give a good indication of the population histogram based
1 when trying to detect outliers discuss the relative merits of using a histogram versus a boxplot2 a sample histogram
in given problem what is the probability of observing a value greater than or equal to 3problemif the possible values
for the probability functionx01px73verify that the mean and variance are 3 and 21 respectively what is the probability
imagine that an auto manufacturer wants to evaluate how potential customers will rate handling for a new car being
1 if the possible values for x are 1 2 3 4 5 with probabilities 2 1 1 5 1 respectively what are the population mean