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The physical plant at the main campus of a large state university receives daily requests to replace florescent light bulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 41 and a standard deviation of 5. Using the empirical rule (as presented in the book), what is the approximate percentage of light bulb replacement requests numbering between 41 and 51?
Do not enter the percent symbol.
ans = %
The use of coding has become particularly significant in recent years. One way to encrypt or code a message uses matrices and their properties. We start with a message coded into matrix form, called A. Multiply A by another matrix B to get AB and ..
find the p value for the given test statisticsa test stat is 1.64996194955793 for a two tailed testb test stat is
What is the correct decision - In testing if the diameter of a tree is significant, state the null and alternative hypothesis - Write down a second order linear model with interaction.
Explain what a Chi-Squared Test is used for and give an example how you could possibly use this test. What is an ANOVA test? Create an example where this test could be used.
Describe the standard normal distribution. Explain why it can be used to find probabilities for all normal distributions.
What factors should the assistant chief consider in determining the presence of gender bias in firefighter promotion? Is the promotional status of recently promoted firefighters independent of their gender
There're several measures of central tendency. By far the most frequently utilized of these measures is mean of population. Remember that the source of the data that you want to analyze always comes from what is called a population.
in the annual report a major food chain stated that the distribution of daily sales at its detroit stores is known to
Determine the mass of 1 L of saturated liquid water at 25°C. How do you think this value compares to the mass of 1L of subcooled liquid water at 25°C and atmospheric pressure? Determine the temperature, quality, and internal energy of 5 kg of wat..
We want to estimate the population mean within 5, with a 99% confidence level. The population std dev is estimated to be 15. How large is the required sample size?
Suppose that 30% of the applicants for a certain industrial job possess advanced training in computer programming. Applicants are interviewed sequentially and are selected at random from the pool. Find the probability that the first applicant wit..
It is used when it does not make sense to look at the mean of such variables. (You can refer to the article for this phase for further information.) The following information may be helpful in understanding Chi Square and Hypothesis testing:
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