Part 1 of 2 (a) How large a sample must be Round the critical value to no les Round the sample size up to the A sample size of is needec 4.7. Part 2 of 2 (b) If the required confidence (Choose one) ▼ because
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- What is meant by the sample space of an experiment?A random sample of size 15 taken from a normally distributed population revealed a sample mean of 75 and a sample variance of 25. The upper limit of a 95% confidence interval for the population mean would equal?If we have a sample of size 100 from a population of rope with sample mean breaking strength of 1040 pounds with standard deviation 200 pounds and we wish to run a hypothesis test with this data to see if the population mean breaking strength exceeds 1000 pounds, what is our ALTERNATE HYPOTHESIS?
- 1)Remove the four potential outliers of 0, 0, 8, and 20, and then obtain a new histogram without the outliers. Does the data appear to be normally distributed now? 2)Assuming that the four potential outliers of 0, 0, 8, and 20 are not recording errors, repeat the hypothesis test from part (c) (again setting up the hypothesis test and using either the critical value or p-value approach), and compare your results with that obtained in (c). Did you make a different conclusion? 3)Imagine you know have to make a recommendation/conclusion to the company that hired you: Assuming that the four potential outlies are not recording errors, and looking at the two results above, would you recommend using the first test with the outliers or the second test with the outliers removed? There is no right or wrong answer here, I am interested in what you think and your reasoning.Find the critical value zα/2 that corresponds to a 96% confidence level.If we have a sample of size 100 from a population of rope with sample mean breaking strength of 960 pounds with standard deviation 200 pounds and we wish to run a hypothesis test with this data to see if the population mean breaking strength differs from 1000 pounds, what is our ALTERNATE HYPOTHESIS?
- If we have a sample of size 100 with sample mean breaking strength of 1050 pounds from a population of rope with standard deviation 200 pounds and we wish to run a hypothesis test with this data to see if the population mean breaking strength differs from 1000 pounds, what is the P-Value of our data?Part 1 of 3: Assume that a sample is used to estimate a population proportion and a sample of size 251 has 177 successes. Find the 3-decimal small number in the 95% confidence interval Part 2 of 3: Find the 3-decimal large number in the 95% confidence interval Part 3 of 3: Find the 3-decimal margin of error