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Use R to answer the following parts. Set the seed (order) of your randomizations by using the number 5065.
a) Create a matrix with 50 rows and 5 columns such that each row is a sample of size 5 from the exponential distribution with ß=1. Print your matrix.
b) Compute the 90% t confidence intervals for the mean for each sample. Use a diagram or table to illustrate your intervals.
c) What percent of your intervals successfully captured the true mean?
d) Calculate the P-value for testing H0: ß=1 vs. H1: ß?1 for each sample. Describe your P-values. Note that ß is the mean of the exponential distribution. In how many tests did you reject H0? Use a=0.05.
e) The exponential distribution is a fairly extreme departure from normality. What can you conclude about the sensitivity of t intervals and tests to non-normality? This is, were the observed confidence level (for confidence interval) and significant level (for test) close to what you would expect?
One of the research focuses of the Research Farm at Ataturk University, Erzurum, Turkey, is on increasing meat quality and production in sheep.
achumko supplies walmart with bottled oil. walmart has a contract for 330000 cases of product per year. ach production
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As judged by the information contained in the performance report, should the vice president be concerned about the company's labor variances? Why?
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These two questions related to Basic Statistics. The first question discuss about increasing scores and correlation widely spreading out
Mean of $62000 per year and a standard deviation of $5000 per year. what percent of police officers make: what salary represents the top 5%?
Give a probability distribution for the following: In 1992, the Big 10 collegiate sports conference moved to have women compose at least 40% of its athletes within 5 years.
For random variables X and Y in Example 4.27, use Matlab to calculate E[X], E[Y], the correlation E[XY], and the covariance Cov[X, Y].
Is this sample sufficient to conclude that the eye-spots have a significant influence on the birds' behavior? Use a two-tailed test with α= .05. Compute the estimated Cohen's d to measure the size of the treatment effect.
Use the following information to tfind the P-value
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