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Determine the area under the normal curve with mu = 8 and sigma = 3. If Mary gets 90 on a physics test where mean is 85 and standard deviation is 4.59, where does she stand in relation to her classmates? In the normal distribution with mu = 25 and sigma = 9, what number corresponds to z = -2?
The lifetime of a 2-volt non-rechargeable battery in constant use has a Normal distribution with a mean of 516 hours and a standard deviation of 20 hours. The proportion of batteries with lifetimes exceeding 520 hours is approximately.
Which of the following would have a binomial distribution and evaluate the binomial coefficient
To speed up the process in a blood testing procedure, blood samples from 3 people are combined into one mixture. The mixture will only test negative if all the individual samples are negative.
Compare and contrast internal and external validity. Describe and give examples of research questions for which external validity is a primary concern.
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots. A partial ANOVA table
Show the sampling distribution of p if a random sample of 150 insured individuals is used to estimate the proportion having received at least one ticket.
A combination of content and supportive examples would be greatly appreciated.
If new inspector measures 101 stampings with variance of 0.13 square inch, test at 0.05 level of significance whether inspector is making satisfactory measurements. Suppose normality.
Compute the Kappa statistic and its standard error reading reproducibility of the diagnosis of dyspnea in this clinic.
Z score on comparison distribution for sample score and your conclusion. Suppose that all population are normally distributed.
The manager of a Farmer Jack Super Market would like to know if there is a preference for the day of the week on which customers do their shopping.
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