The following table shows the percentage of U.S. college freshmen in the given year who believed abortion should be legal. 1996 2000 2004 2008 2012 56.7 53.4 53.4 58.9 61.2 Using extrapolation, the estimated percentage of college freshmen who believed abortion should be legal in 2015 =
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The following table shows the percentage of U.S. college freshmen in the given year who believed abortion should be legal.
1996 2000 2004 2008 2012
56.7 53.4 53.4 58.9 61.2
Using extrapolation, the estimated percentage of college freshmen who believed abortion should be legal in 2015 =
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- Following is a list of 21 African nations for which information is available on voter turnout (percentage of the voting age population) for president between 2005 and 2008. Compute and interpret the median and mean percentage turnout. Presidential Voter Turnout, 21 African Countries, 2005–2008 COUNTRY YEAR % Turnout VAP Burkina Faso 2005 36.4 Cape Verde 2006 78.59 Central African Rep. 2005 45.14 Chad 2006 71.4 Comoros 2006 52.14 Djibouti 2005 67.82 Egypt 2005 16.41 Gabon…can you please make statsitics ( bar graphs , pie charts, line graphs) for all these results in the survey down belowThe accompanying table contains historical data on staff salaries (in dollars per pupil) for 30 schools sampled in part of a country in the early 1970s. I need help with this part attached. 3.86 2.80 2.71 2.95 3.08 1.802.60 3.32 2.52 2.12 2.58 2.682.76 2.85 3.67 3.84 3.43 2.122.94 2.83 3.04 2.43 2.18 3.693.21 3.67 2.39 2.61 3.42 3.45 The sample mean is 2.9183 The sample standard deviation is 0.5495
- Use of Social Media. Social media is becoming more and more popular around the world. Statista provides estimates of the number of social media users in various countries in 2017 as well as the projections for 2022. Assume that the results for surveys in the United Kingdom, China, Russia, and the United States are as follows. Country Use Social Media United Kingdom China Russia United States Yes 480 215 343 640 No 320 285 357 360 Conduct a hypothesis test to determine whether the proportion of adults using social media is equal for all four countries. What is the p-value? Using a .05 level of significance, what is your conclusion? What are the sample proportions for each of the four countries? Which country has the largest proportion of adults using social media? Using a .05 level of significance, conduct multiple pairwise comparison tests among the four countries. What is your conclusion?A study claims that the Netherlands has the tallest adults of any country with an average height of 6.14 ft. Trent wants to test this claim. He randomly measures the heights of 31 dutch adults and obtains the following data, in feet: 5.23, 6.6, 5.67, 6.44, 7.39, 6.14, 5.86, 4.09, 5.6, 5.68, 6.13, 5.87, 3.95, 5.61, 5.69, 6.83, 7.45, 6.03, 5.5, 5.75, 6.94, 5.65, 7.64, 2.83, 4.42, 5.5, 6.21, 6.53, 6.75, 6.01, 4.35 Should Trent reject the claim? Step 1: State the hypothesis. ? v = Step 2: Determine the Features of the Distribution of Point Estimates Using the Central Limit Theorem. By the Central Limit Theorem, we know that the point estimates are Select an answer with distribution mean and distribution standard deviation Step 3: Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate. P(? v? v P(?v?A governmental agency computed the proportion of violent crimes in the United States in a particular year falling into each of four olo categories. A simple random sample of 550 violent crimes committed in California during that year were categorized in the same way. The following table presents the results. U.S. California Category Proportion Frequency Murder 0.012 Forcible Rape 0.058 20 Robbery 0.360 207 Aggravated Assault 0.570 318 Send data to Excel Can you conclude that the proportions of crimes in the various categories in California differ from those in the United States as a whole? Use the 0.01 level of significance and the P-value method with the TI-84 Plus calculator. Part: 0 / 4 Part 1 of 4 (a) State the null and alternate hypotheses. Save For Later Submit Assignment Check Answer Skip Part O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy (? 5/2 Search insert 山园
- The following diagram shows a boxplot for the lifetimes (in months) of a sample of 30 light- bulbs.What percentage of the general U.S. population have bachelor's degrees? The Statistical Abstract of the United States, 120th Edition, gives the percentage of bachelor's degrees by state. For convenience, the data are sorted in increasing order. 17 18 18 18 19 20 20 20 21 2121 21 22 22 22 22 22 22 23 2324 24 24 24 24 24 24 24 25 2626 26 26 26 26 27 27 27 27 2728 28 29 31 31 32 32 34 35 38 (a) Select the box-and-whisker plot. (look at screenshot) (b) Find the interquartile range. (c) Illinois has a bachelor's degree percentage rate of about 26%. Into what quarter does this rate fall? (Select one of the answers below). A. below Q1 B. between Q1 and the median C. between the median and Q3 D. above Q3I need help figuring out this practice question. It is not for a grade but for my own knowledge
- Violent crimes include rape, robbery, assault, and homicide. The following is a summary of the violent-crime rate (violent crimes per 100,000 population) for all states of a country in a certain year. Complete parts (a) through (d). Q1=273.8, Q2=388.5, Q3=529.1 (a) Provide an interpretation of these results. Choose the correct answer below. A. 25% of the states have a violent-crime rate that is 273.8 crimes per 100,000 population or less. 50% of the states have a violent-crime rate that is 388.5 crimes per 100,000 population or less. 75% of the states have a violent-crime rate that is 529.1 crimes per 100,000 population or less. B. 25% of the states have a violent-crime rate that is 273.8 crimes per 100,000 population or more. 50% of the states have a violent-crime rate that is 388.5 crimes per 100,000 population or more. 75% of the states have a violent-crime rate that is 529.1 crimes per 100,000 population or more. C. 75% of the…The gap between the earnings of men and women with equal education is narrowing but has not closed. Sample data for seven self-identifying men and self-identifying seven women with bachelor's degrees are as follows. Data are shown in thousands of dollars. Men Women 33.6 40.5 88.5 48.4 58.2 37.9 66.2 43.5 45.2 38.8 59.9 57.5 68.3 20.8 (a) What is the median salary (in $) for men? For women? men women $ $ (b) Use α = 0.05 and conduct the hypothesis test for identical population distributions. State the null and alternative hypotheses. H: Median salary for men - Median salary for women ≤ 0 H: Median salary for men - Median salary for women > 0 H: The two populations of salaries are identical. H: The two populations of salaries are not identical. Ho The two populations of salaries are not identical. H: The two populations of salaries are identical. О но H₂ Median salary for men - Median salary for women ≥0 Median salary for men - Median salary for women 0 H: Median salary for men - Median…The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information. City Oxford Starksville Danville Athens ……….... Police 23 24 30 33 Number of Crimes 18 15 Click here for the Excel Data File 9 11 Number of crimes City Holgate Carey Whistler Woodville > Answer is complete but not entirely correct. 40.6081 X (90.0408) ► x Answer is complete and correct. 19✔ Police 24 20 19 27 a. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) Number of Crimes 9 22 24 10 b. Estimate the number of crimes for a city with 21 police officers. (Round your answer to the nearest whole number.)
