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Determine the critical value, z0, to test the claim about the population proportion p < 0.850 given n=60 and p=0.656. Use a =0.05.
Create a 95% confidence interval for population proportion of positive drug tests.
Given that both balls selected are white what is the probability that bowl 3 was selected?
Perform hypothesis testing on one variable's data.
What is the maximum error of estimate for p ?
Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data.
a) What statistical test should be used to analyze these data? b) Identify H0 and Ha for this study. c) Conduct the appropriate analysis d) Should H0 be rejected? What should the researcher conclude?
Finding the probability selecting a defective item from a collection of items using tree diagram
Given following financing project being considered by venture film, determine critical path probability of completion by 17 weeks.
Construct a stem and leaf plot of the income. what do you predict about the shape of the population distribution. complete the following sentence. Fifty percent of the data falls below $ ______.
Explain this result (including the underlying logic of the computations) to a person who understands hypothesis testing involving a single sample and a known population, but knows nothing about t tests.
Use RNG in Excel to generate n = 5 observations from the Normal distribution N(20, 5). Test H0: μ = 20 versus H0: μ ≠ 20 at the α = 0.05 level of significance. Repeat this process 100 times and then count the number of times that you reject H0.
Following data from an x bar chart, is the process capable (capability index>1.33)?
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