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The following 5 questions are based on this information. In a random sample of 225 individual...
part b: What is the margin of error in this sample? part c: Is there any...
part b: What is the margin of error in this sample?
part c: Is there any evidence that this proportion has changed
since 2012 based on this sample ?
It was reported that 61% of individual tax returns were filed electronically in 2012. A random sample of 175 tax returns from 2013 was selected. From this sample, 111 were filed electronically. Complete parts a through c below. a. Construct a 90% confidence interval to estimate the actual proportion of taxpayers...
part b: what assumptions need to be made about this population? part c: is there any...
part b: what assumptions need to be made about this
population?
part c: is there any evidence thag this proportion has changed
since 2012 based on this sample ?
It was reported that 50% of individual tax returns were filed electronically in 2012. A random sample of 225 tax returns from 2013 was selected. From this sample, 153 were fled electronically. Complete parts a through c below ama . Construct a 90% confidence interval to estimate the actual proportion of...
Q4) A national air traffic control system handled an average of 47,665 flights during 29 randomly...
Q4) A national air traffic control system handled an average of 47,665 flights during 29 randomly selected days in a recent year. The standard deviation for this sample is 6,208 flights per day. Complete parts a through c below. a. Construct a 99% confidence interval to estimate the average number of flights per day handled by the system. The 99% confidence interval to estimate the average number of flights per day handled by the system is from a lower limit...
In a random sample of 100 audited estate tax returns, it was determined that the mean...
In a random sample of 100 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3401 with a standard deviation of $2506. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Find and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Select the correct choice below and fill in the answer boxes to complete...
i am specifically looking at 4 and 5 1. A city official claims that the proportion...
i
am specifically looking at 4 and 5
1. A city official claims that the proportion of all commuters who are in favor of an expanded public transportation system is 50%. A newspaper conducts a survey to determine whether this proportion is different from 50%. Out of 225 randomly chosen commuters, the survey finds that 90 of them reply yes when asked if they support an expanded public transportation system. Test the official's claim at a = 0.05. 2. A...
26. In a random sample of 95 college students, 40 wished they would have chosen a...
26. In a random sample of 95 college students, 40 wished they would have chosen a different major. Use the following steps to construct a 95% confidence interval for the true proportion of all students who wished they would have chosen a different major. a. Find the number of sample values, n b. Find the sample proportion, B c. Find the critical z-score, 2/2 d. When calculated correctly, E = 0.0993. Construct a confidence interval for the population proportion, p....
In a random sample of 49 audited estate tax returns, it was determined that the mean...
In a random sample of 49 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3455 with a standard deviation of $2501. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Click the icon to view the t-distribution table. The lower bound is $ . (Round to the nearest dollar as needed.) The upper bound is $ |(Round to the nearest dollar as...
200 1995 Sample Size Count for Response 340 Confidence Interval (in terms of 2005-1995) Connidence Coetficient Lower Limit Upper Limt 0.95 0.1 Hypothesis Test (in terms of 2005-1995) Hvpothesized Val...
200 1995 Sample Size Count for Response 340 Confidence Interval (in terms of 2005-1995) Connidence Coetficient Lower Limit Upper Limt 0.95 0.1 Hypothesis Test (in terms of 2005-1995) Hvpothesized Value Test Statistic Lower Tail p-value (Upper Tail) o-value (Two Tail) 0.05 0.0021 2005 199 340 Count for Response ample Proportio 0.150 Contidence Interval (in terms of 2005-1995) Confidence Coefficient Lower Limit Limit 0.1184 esis Test (in terms of 2005 1995 Hypothesized Value Pooled Sample Proportion Test Statistic p-value (Lower Tail)...
In a random sample of 35 criminals convicted of a certain crime, it was determined that...
In a random sample of 35 criminals convicted of a certain crime, it was determined that the mean length of sentencing was 68 months, with a standard deviation of 13 months. Construct and interpret a 90% confidence interval for the mean length of sentencing for this crime. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). Click here to view the table of critical t-values. Select the...
Based on information from a previous study, r = 34 people out of a random sample...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
part b: What is the margin of error in this sample?
part c: Is there any evidence that this proportion has changed
since 2012 based on this sample ?
It was reported that 61% of individual tax returns were filed electronically in 2012. A random sample of 175 tax returns from 2013 was selected. From this sample, 111 were filed electronically. Complete parts a through c below. a. Construct a 90% confidence interval to estimate the actual proportion of taxpayers...
part b: what assumptions need to be made about this
population?
part c: is there any evidence thag this proportion has changed
since 2012 based on this sample ?
It was reported that 50% of individual tax returns were filed electronically in 2012. A random sample of 225 tax returns from 2013 was selected. From this sample, 153 were fled electronically. Complete parts a through c below ama . Construct a 90% confidence interval to estimate the actual proportion of...
In a random sample of 100 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3401 with a standard deviation of $2506. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Find and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Select the correct choice below and fill in the answer boxes to complete...
i
am specifically looking at 4 and 5
1. A city official claims that the proportion of all commuters who are in favor of an expanded public transportation system is 50%. A newspaper conducts a survey to determine whether this proportion is different from 50%. Out of 225 randomly chosen commuters, the survey finds that 90 of them reply yes when asked if they support an expanded public transportation system. Test the official's claim at a = 0.05. 2. A...
26. In a random sample of 95 college students, 40 wished they would have chosen a different major. Use the following steps to construct a 95% confidence interval for the true proportion of all students who wished they would have chosen a different major. a. Find the number of sample values, n b. Find the sample proportion, B c. Find the critical z-score, 2/2 d. When calculated correctly, E = 0.0993. Construct a confidence interval for the population proportion, p....
In a random sample of 49 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3455 with a standard deviation of $2501. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Click the icon to view the t-distribution table. The lower bound is $ . (Round to the nearest dollar as needed.) The upper bound is $ |(Round to the nearest dollar as...
200 1995 Sample Size Count for Response 340 Confidence Interval (in terms of 2005-1995) Connidence Coetficient Lower Limit Upper Limt 0.95 0.1 Hypothesis Test (in terms of 2005-1995) Hvpothesized Value Test Statistic Lower Tail p-value (Upper Tail) o-value (Two Tail) 0.05 0.0021 2005 199 340 Count for Response ample Proportio 0.150 Contidence Interval (in terms of 2005-1995) Confidence Coefficient Lower Limit Limit 0.1184 esis Test (in terms of 2005 1995 Hypothesized Value Pooled Sample Proportion Test Statistic p-value (Lower Tail)...
In a random sample of 35 criminals convicted of a certain crime, it was determined that the mean length of sentencing was 68 months, with a standard deviation of 13 months. Construct and interpret a 90% confidence interval for the mean length of sentencing for this crime. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). Click here to view the table of critical t-values. Select the...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
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