Given that, sample size ( n ) = 1403
sample proportion = 56%
margin of error ( E )= 4%
The confidence interval for population proportion is,
Therefore, the confidence interval is from 52% to 60%
Homework: Section 1.1 Homework S19 Score: 0 of 1 pt 1.1.19 Save 6 of 10 (4...
MA 220 Probability and Statistics (201803) Homework: Section 1.1 Score: 0 of 1 pt 1.1.15 Joshua Mettica & I 1/20/19 3:50 PM Homework S19 Sav 4 of 10 (3 complete) Hw Score: 30%, 3 of 10 E Queation Help in a poll, 1,001 adults in a certain ountry were asked whether they favor or oppose the use of ฯ ederal tax dollars to fund medial research using stem ools obtained from human embryos. Based on the poll results, it is...
MRT 210.SLALISLICHU P Homework: Section 6.3 Homework Save Do Score: 0 of 1 pt 13 of 13 (11 complete) HW Score: 74.36%, 9.67 of 13 pts X 6.3.29-T Question Help Translate the statement into a confidence interval. Approximate the level of confidence In a survey of 1015 adults in a country. 73% said being able to speak the language is at the core of national identity. The survey's margin of error is The confidence interval for the proportion is (Round...
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Homework: Section 7-3 Homework Save Score: 0 of 1 pt 6 of 19 (11 complete) HW Score: 56%, 14 of 25 pts 7.3.16 Assigned Media Question Help In a sample of seven cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and the following results were obtained: 0.16, 0.06, 0.19,0.12, 0.06, 0.15, 0.06. Assuming that this sample is representative of the cars in use, construct a 98% confidence interval estimate of the mean amount of nitrogen-oxide emissions...
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Homework: Chapters 6 and 7 Score: 0 of 1 pt 7.2.14 Save 8 of 10 (7 complete) ▼ HW Score: 50%, 5 of 10 pts Question Help In a test of the effectiveness of garlic for lowering cholesterol, 44 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (before-after) in their levels of LDL cholesterol (in mg/dL) have a mean of 2.8 and a standard deviation of 19.7....
Johnson -STA 220- LBT 5521- Fall 2019 Homework: Section 7-3 Homework Save Score: 0 of 1 pt 1 of 19 (10 complete) HW Score: 56%, 14 of 25 pts 7.3.9-T Assigned Media Question Help Use technology and the given confidence level and sample data to find the confidence interval for the population mean Assume that the population does not exhibit a normal distribution. Weight lost on a diet 99% confidence x-2.0 kg s 4.5 kg n 41 What is the...
Homework: Section 4.1 Homework Score: 0 of 1 pt 4.1.22 Save 4 of 10 (3 complete) HW Score: 20%, 2 of 10 pts Question Help * Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result isa false positive? Who would suffer from a false positive result? Why? Positive test result Drug Use Is Indicated 37 15 Negative test result Drug Use Is...
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part c Hon Score: 0.64 of 1 pt 1 of 4 (3 complete) HW Score: 63.13%, 2.53 of 4 pts 29.1.25-T Question Help A survey of 2314 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 422 have donated blood in the past two years. Complete parts (a) through (c) below. (a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have...