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- Burkina Faso, a landlocked country in West Africa, has the lowest adult literacy rate in the world (25.3%). Over the past 15 years, the government has focused heavily on improving access to education across the country. Between 2008 and 2015, the primary school completion rate rose from 40% to 60%, and the high school completion rate doubled over the same period from 15% to 30%. Despite these encouraging statistics, children in rural areas, especially girls, continue to have limited access to quality education. You put together a survey to collect information on the following variables and you are ready to analyze: Gender Age at last birthday Distance from school Level of education (Primary, Secondary, Post-Secondary) Discuss what measure of central tendency is the most appropriate for each variable making sure to explain why.Opinions are split about a coffee company's pumpkin-flavored coffee (PFC). Yet every year over the last five years the consumption of pumpkin-flavored goods has increased. If we look at the numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a magazine, the amount spent by PFC buyers at the coffee company is about 17% higher than non-PFC buyers. The accompanying table shows a random sample of eight consumers, the amount they spend per week, y, and the number of PFCs purchased, x, per week. PFC Spending 1 13.17 8 38.65 3 19.49 2 9.56 4 15.85 1 21.82 5 37.53 3 13.69 α=0.05 t= 3.07 p-value= 0.022 Construct a 95% confidence interval for the population slope. UCL = 6.69 LCL = 0.75 What conclusions about PFC purchases and spending can be drawn from these…Opinions are split about a coffee company's pumpkin-flavored coffee (PFC). Yet every year over the last five years the consumption of pumpkin-flavored goods has increased. If we look at the numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a magazine, the amount spent by PFC buyers at the coffee company is about 17% higher than non-PFC buyers. The accompanying table shows a random sample of eight consumers, the amount they spend per week, and the number of PFCs purchased per week. PFC Spending 2 13.88 7 39.11 4 19.79 1 9.84 3 15.43 1 21.52 5 37.39 3 13.85 Calculate the slope and y-intercept for the regression formula. The slope is b1=(Round to three decimal places as needed.)
- Opinions are split about a coffee company's pumpkin-flavored coffee (PFC). Yet every year over the last five years the consumption of pumpkin-flavored goods has increased. If we look at the numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a magazine, the amount spent by PFC buyers at the coffee company is about 17% higher than non-PFC buyers. The accompanying table shows a random sample of eight consumers, the amount they spend per week, y, and the number of PFCs purchased, x, per week. PFC Spending 1 13.17 8 38.65 3 19.49 2 9.56 4 15.85 1 21.82 5 37.53 3 13.69 α=0.05 t= 3.07 p-value= 0.22 Construct a 95% confidence interval for the population slope. UCL = LCL = (Round to two decimal places as needed.)Opinions are split about a coffee company's pumpkin-flavored coffee (PFC). Yet every year over the last five years the consumption of pumpkin-flavored goods has increased. If we look at the numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a magazine, the amount spent by PFC buyers at the coffee company is about 17% higher than non-PFC buyers. The accompanying table shows a random sample of eight consumers, the amount they spend per week, and the number of PFCs purchased per week. PFC Spending 2 13.88 7 39.11 4 19.79 1 9.84 3 15.43 1 21.52 5 37.39 3 13.85 The slope is b1=4.465 The y-intercept is b0=6.840 Because the slope is positive, it can be concluded that one extra PFC purchase per week will increase the average amount of spending per week by 4.46 dollars. Predict…Opinions are split about a coffee company's pumpkin-flavored coffee (PFC). Yet every year over the last five years the consumption of pumpkin-flavored goods has increased. If we look at the numbers, it also becomes clear why a leading coffee company keeps offering the PFC earlier and earlier every year. According to a magazine, the amount spent by PFC buyers at the coffee company is about 17% higher than non-PFC buyers. The accompanying table shows a random sample of eight consumers, the amount they spend per week, and the number of PFCs purchased per week. PFC Spending 2 13.88 7 39.11 4 19.79 1 9.84 3 15.43 1 21.52 5 37.39 3 13.85 Calculate the slope and y-intercept for the regression formula. The slope is b1=4.465 The y-intercept is b0=6.840 Provide an interpretation for the value of the slope. Because the slope is positive, it can be…
- According to Zillow.com, the median sale price for homes in January for South Carolina, California, and Virginia over the last three years is given in the table below (measured in $100,000). able South Carolina California Virginia 2018 183 534 98 2019 193 555 94 2020 216 569 85 In South Carolina, realtors take 5.4% of the sale price on average as part of their commission. The average realtor commission rates in California and Virginia are 4.9% and 5.3%, respectively. Use matrix multiplication to find the total earned by realtors from their commissionsIn February 2021, the Chicago Tribune reported:“The overdose epidemic that has ravaged Chicago has not spared the nearby suburbs, some of which have death rates comparable to anything seen in the city, according to a report released this week by the Cook County Department of Public Health. ZIP codes in the towns of Worth, Broadview, Maywood, and Forest Park, areas that “have substantially lower median household incomes and higher poverty rates,” have been especially hard-hit, the report said.”In the article, they claimed that lower incomes were associated with higher overdose death rates and that overdose death rates are increasing over time. The data you have been analyzing wasn’t focused on Chicago, obviously. But do your results support the general gist of the statistical argument being made in this Tribune excerpt? Please address:• Do overdose death rates appear to be associated with per capita income (use scatterplot)?• Do overdose death rates appear to be increasing over time…Access to education in rural Burkina Faso. Burkina Faso, a landlocked country in West Africa, has the lowest adult literacy rate in the world (25.3%). Over the past 15 years, the government has focused heavily on improving access to education across the country. Between 2008 and 2015, the primary school completion rate rose from 40% to 60%, and the high school completion rate doubled over the same period from 15% to 30%. Despite these encouraging statistics, children in rural areas, especially girls, continue to have limited access to quality education. Suppose you were sent to Burkina Faso as part of a team of summer interns to conduct fieldwork in a rural community to gather data on education. You put together a survey to distribute in homes a.What is the level of measurement of the following variables? Explain i) Age at last birthday: _____________________ ii)Distance from school: _____________________ iii)Level of education (Primary, Secondary, Post-Secondary):…
- Section 3.1, question 1You may need to use the appropriate appendix table or technology to answer this question. What percentage of the population live in their state of birth? According to the U.S. Census Bureau's 2014 American Community Survey, the figure ranges from 25% in Nevada to 78.7% in Louisiana. The average percentage across all states and the District of Columbia is 57.7%. The data in the file HomeState are consistent with the findings in this American Community Survey. The data are for a random sample of 120 Arkansas residents and for a random sample of 180 Virginia residents. (a) Formulate hypotheses that can be used to determine whether the percentage of stay-at-home residents in the two states differs from the overall average of 57.7%. Ho: p > 0.577 Ha: p ≤ 0.577 Ho: p = 0.577 Ha: P = 0.577 Ho: p ≤ 0.577 Ha: p > 0.577 Ho: p≥ 0.577 Ha: p < 0.577 Ho: P < 0.577 Ha: p≥ 0.577 (b) Estimate the proportion of stay-at-home residents in Arkansas. (Round your answer to four decimal places.) 0.6167 Does…Suppose you took a survey designed to assess criminal justice students and their attitudes towards ending cash bail in California. You ask 100 students (randomly sampled) how much they'd be willing to pay to fund community supervision programs over the current cash bail system. There is another question that asks students if they believe reforming cash bail is a serious issue. Select all correct answers. The response variable is a student's belief that cash bail needs to be reformed. The reponse variable is the amount of tax a student is willing to pay to cover community supervision costs. Students answer yes or no to the question of whether they believe cash bail reform should occur. This means the samples are independent. Students answer yes or no to the question of whether they believe cash bail reform should occur. This means the samples are dependent.