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Researchers want to know whether, the variation in the population of trap-spacing measurements, is larger than 10 m2. They will conduct a test of hypothesis using α = 0.05.a.) Note that s2 > 10. Consequently, a fisherman wants to reject the null hypothesis. What are the problems with using such a decision rule?b.) Compute the value of the test statistic.c.) Find the approximate p-value of the test.d.) Give the appropriate conclusion.e.) What conditions must be satisfied for the test results to be valid?
We are evaluating the sheet metal scrap rate in a contractor proposal. Based on a sample of 28 parts you calculate a mean rate of 6.50% (treat as 6.50) and a standard deviation of 1.20. Calculate a 80% confidence interval to be used to support negoti..
Research paper examines determine the impact of social media use on student learning.
A sales man normally closes on 80% of his presentations. Assuming the presentations are independent, find the probability of each of the following: a) he fails to close for the first time on his fifth attempt, b) he closes his presentation on his fou..
In a normal distribution of measurements having a mean of 500 feet and a standard deviation of 50 feet, what percent of the distribution falls between 490 and 520 feet?
Using simple linear regression, test whether age when first married (agewed) related to total family income (income91). Report the R-Value. What does the R-Value mean? What is the R-square value, and what does that mean? Finally state the regre..
Select five empirical articles from peer-reviewed journals
Given a standard normal distribution
Reflection to date
What is the expected total inventory holding and ordering cost per year and how many days should one order last on average?
Why is normality required for standard deviation applicability?
Compute expected frequencies for each of the cells in the table in part c). Do you feel that the exponential distribution provides an adequate description of these data?
Mutually exclusive then these two events will be independent
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