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Information on a packet of seeds claims that the germination rate is 92%, only 171 of 200 test seeds sprout. Is this evidence that the seeds have lost viability during a year in storage? Test an appropriate hypothesis and state your conclusion.
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
A report states that 46% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 3% with 96% confidence?
How do we decide if the homogeneity of variance assumption is significantly violated?
The standard deviation of test scores on a certain achievement test is 11.4. A random sample of 100 scores on this test had a mean of 71.2. Based on this sample, find a 90% confidence interval for the true mean of all scores. Complete the below:
For the equation: x = e^-pt (C_1e^qt + C_2e^-qt), where C1 and C2 are arbitrary constants, if I let F = C1 + C2 and G = C1 - C2, how do I obtain:
Which is more likely to occur-more than 60% correct identifications in the sample of 200 or more than 55% correct identifications in a sample of 1,000? Explain.
In ANOVA, which of the following is not affected by whether or not the population means are equal?
A software company wants to determine whether there is a relationship between their three sales offices and the sales of their software products. The actual sales results are
Based on this information, determinethe probability that specific fare will exceed $15.00?
He argues that the regression effect says people who perform very poorly in their previous job tend to perform well in their next job. Is this what the regression effect says? Explain.
Critically discuss the relationship between a sample and the type of population it is taken from? What population factors should be taken into consideration?
Based on your analysis, how is the new bottling process working?
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