For a population with a proportion equal to 0.37, calculate the standard error of the proportion for the following sample sizes. a) 40 b) 80 c) 120 a) op (Round to four decimal places as needed.) b) o = (Round to four decimal places as needed.) c) op
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- Use theorem 5.4.3 to form a proportion in which TS is a geometric mean. Hint: TVSTSR Exercises 1-6Use theorem 5.4.2 to form a proportion in which SV is a geometric mean. Hint: SVTRVS Exercises 1-6Since 1966, 45% of the No.1 draftpicks in the NBA have been centers.a) identify the population b) identify the specified attribute c) is the proportion 0.45 (45%) a population proportion or a sample proportion?
- B. The best predicted circumference for a diameter of 1.9 cm is___cm. C. How does the result compare to the actual circumference? Since1.9 cm is within the scope of the sample diameters, the predicted value yields the actual circumference. Even though 1.9 cm is within the scope of the sample diameters, the predicted value yields a very different circumference. Since1.9 cm is beyond the scope of the sample diameters, the predicted value yields a very different circumference. Even though 1.9 cm is beyond the scope of the sample diameters, the predicted value yields the actual circumference.The population size is always considered in any scientific investigation. If the population is too big, researchers opt to simply get a sample size which is considered a representative of the target population. In your opinion, what is the importance of sample size in research? Provide a concise answer. (5 to 8 senteces)Is the sample size of survey is multiplied by 25, then by what factor is the margin of error multiplied by?
- A researcher wishes to estimate the proportion of households with two cars.a) How large a sample is needed in order to be 99% confident that the sample proportion will not differ from the true proportion by more than 3%?b) Repear part a if a previous study indicates that the proportion of households with two cars is 25%.The lengths (in kilometers) of a random sample of 18 rivers on the South Island of New Zealand that flow to the Tasman Sea are listed in table below.Any quantity that is computed from a sample is called
- If systematic selection is used with a starting point of 10, a population size of 100, and anecessary sample size of 20, the first three items selected for examination would bea. 10, 110, 210.b. 110, 210, 310.c. 10, 15, 20.d. 15, 20, 25.Suppose Maureen turns in a late vote for giraffe.What is the new ratio of giraffe votes to rabbit votes.a) What proportion of 20% of defective items should a supervisor in the quality system of a plastic products company accept when they ask him to evaluate a routine inspection procedure for orders of 100 identical articles, knowing that the procedure consists of taking a sample of 10 items and the one to accept the order if no more than 2 defective items are found? b) How many defective items are expected to appear in the sample?