In 2016, it was reported that 80 of 500 Utah families had incomes below the poverty...

In 2016, it was reported that 80 of 500 Utah families had incomes below the poverty level. At the same time, 54 of 450 Wyoming families had incomes below the poverty level. You need to find out if there was a significant difference in proportion of families with incomes below the poverty level in these two states.

(a) Calculate a 95% confidence interval for the difference between the two corresponding population proportions.

(b) Which state has a higher proportion of families with incomes below the poverty level, and by how much? Be specific. Show calculation for all!!

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

In 2016, it was reported that 16% of 500 Utah families had incomes below the poverty...

In 2016, it was reported that 16% of 500 Utah families had incomes below the poverty level. At the same time, 11.3% of 450 Wyoming families had incomes below the poverty level. You need to find out if there was a significant difference in proportion of families with incomes below the poverty level in these two states. (a) State the research question. (b) State both the null and alternative hypotheses. (c) Determine the critical values (use 5% significance level). (d)...

In 2016, it was reported that 16% of 500 Utah families had incomes below the poverty...

In 2016, it was reported that 16% of 500 Utah families had incomes below the poverty level. At the same time, 11.3% of 450 Wyoming families had incomes below the poverty level. You need to find out if there was a significant difference in proportion of families with incomes below the poverty level in these two states. Determine the critical values (use 5% significance level).alculate the p-value for the test. (g) Assess the strength of your decision in part (d)...

Poverty and Calcium: A simple random sample of 18 people with incomes below the poverty level...

Poverty and Calcium: A simple random sample of 18 people with incomes below the poverty level gives the following daily calcium intake: 686 423 743 647 734 641 993 620 574 634 850 858 992 775 1113 672 879 609 At the 5% significance level do the data provides sufficient evidence to conclude that the mean calcium intake of all people with incomes below the poverty level is less than the RDA of 800 mg? Perform a Hypothesis Test.

Smyrna Company had financial and taxable incomes as follows: 2016 2017

Smyrna Company had financial and taxable incomes as follows: 2016 2017 2018 Pretax financial income $150,000 $140,000 $135,000 Taxable income 115,000 140,000 170,000 The tax rate for all three years was 30%. Required: a. Prepare the journal entries to record income taxes for all three years. b. Explain why the taxes paid in 2018 are different from the tax return and the amount reported in the financial statements and provide...

Hendry Corp. reported net incomes for the last three years as follows: 2018 2017 2016 $180,000...

Hendry Corp. reported net incomes for the last three years as follows: 2018 2017 2016 $180,000 $240,000 $225,000 During the 2018 year-end audit, Hendry's newly appointed auditors discover that Hendry bought a machine on January 1, 2015 for $125,000 cash, with a $25,000 estimated residual value and a five-year life. The company debited an expense account for the entire cost of the asset. Hendry uses straight-line depreciation for all machinery. Instructions (Ignore all income tax effects) a) Prepare the general...

A primary health center health center reported that in a sample of 400 patients 80 had...

A primary health center health center reported that in a sample of 400 patients 80 had severe fever. The director of health has asked you to compute a 90% confidence interval for the population proportion with severe fever. Compute the required confidence interval. Your answer should follow the logical sequence as done in class. Incidentally the 95% confidence interval is (0.1608, 0.2392). Explain why the 95% confidence interval will be larger than the 90% confidence interval. The Director went and...

The ages of the Supreme Court Justices in December 2016 are below 61 80 68 83...

The ages of the Supreme Court Justices in December 2016 are below 61 80 68 83 78 66 62 56 Find the mean 8.3125, median 67and mode {56, 61, 62, 66, 68, 78, 80, 83}of the data set. Which best represents the center of the data. Find the range 27, variance 86.1875, and standard deviation 9.283 of the data set. Find the quartiles, Q1, Q2 and Q3 = Q1: 61.5, Q2: 67, Q3: 79 Find the interquartile range 17.5 Identify...

On January 1, 2016, Aronsen Company acquired 80 percent of Siedel Company’s outstanding shares. Siedel had...

On January 1, 2016, Aronsen Company acquired 80 percent of Siedel Company’s outstanding shares. Siedel had a net book value on that date of $410,000: common stock ($10 par value) of $200,000 and retained earnings of $210,000. Aronsen paid $656,000 for this investment. The acquisition-date fair value of the 20 percent noncontrolling interest was $164,000. The excess fair value over book value associated with the acquisition was used to increase land by $350,000 and to recognize copyrights (12-year remaining life)...

On January 1, 2016, Aronsen Company acquired 80 percent of Siedel Company’s outstanding shares. Siedel had...

On January 1, 2016, Aronsen Company acquired 80 percent of Siedel Company’s outstanding shares. Siedel had a net book value on that date of $630,000: common stock ($14 par value) of $280,000 and retained earnings of $350,000. Aronsen paid $640,000 for this investment. The acquisition-date fair value of the 20 percent noncontrolling interest was $160,000. The excess fair value over book value associated with the acquisition was used to increase land by $110,000 and to recognize copyrights (12-year remaining life)...

A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the...

A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the standard deviation. Salary (Dollars) Employees 5,001-10,000 19 10,001-15,000 14 15,001-20,000 12 20,001-25,000 16 25,001-30,000 19 a. $7588.1 b. $8195.1 c. $7967.5 d. $8422.8

Subjects