he table below contains data about the yearly unemployment rate and poverty rate for Free State Province for a period of 10 years (from 2010 - 2019). Assume that unemployment rate and poverty rate are normally distributed. NB: use the values as they appear in the data table to obtain all of your estimates. years 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Unemployment rate 3.5 4.4 5.2 2.8 3.9 4.0 3.8 3.3 4.8 3.1 Poverty rate 5.1 6.3 7.5 5.3 7.5 6.8 5.3 6.0 6.4 4.2 a. Use ordinary least squares (OLS) to fit the sample regression function (poverty rate)i=b0+b1(unemployment rate)i+ei to the data. Write down the estimated sample regression function and interpret your estimate of b1. b. Estimate and interpret the coefficient of determination, R^2. c. Does the poverty rate increase as unemployment increases? In other words, is the coefficient of unemployment rate (b1) positive? Test at the 5% level.

year Income ($) B P1994 6036 85.1 20.41995 6113 87.8 20.21996 6271 88.9 21.31997 6378 94.5 19.91998 6727 99.9 181999 7027 99.5 19.92000 7280 104.2 22.22001 7513 106.5 22.32002 7728 109.7 23.42003 7891 110.8 26.22004 8134 113.7 27.12005 8322 113 292006 8562 116 33.52007 9042 108.7 42.82008 8867 115.4 35.62009 8944 118.9 32.22010 9175 127.4 33.72011 9381 123.5 34.42012 9735 117.9 48.52013 9829 105.4 66.12014 9722 103.2 62.42015 9769 104.2 58.62016 9725 103.7 56.72017 9930 105.7 55.52018 10419 105.5 57.32019 10625 106.5 53.72020 10905 107.3 52.6   Make a forecast of Mr. X's Income for the next five years Make forecast of income for the given values of B =110 and P = 55

need help with all parts

Doctors are testing a new antidepressant. A group of patients, all with similar characteristics, take part in the study. Some of the patients receive the new drug, while others receive the traditional drug. During the study, a number of patients complain about insomnia. The data are shown in the contingency table below. What is the relative risk of insomnia for those who receive the new drug? Round to two decimal places. New drug Total Insomnia No insomnia Total Traditional drug 36 Provide your answer below: 52 88 226 295 521 278 331 609

provide A and B both answer with explanation

(a) Use class intervals of $0 to <$3, $3 to <$6, $6 to <$9, etc., to create a relative frequency distribution for these data. (Round your answers for relative frequency to four decimal places.) Class Interval Frequency Relative Frequency $0 <$3 $3 <$6 $6 <$9 $9 <$12 $12- <$15 $15 <$18 $18 <$21 TOTAL (b) Construct a histogram. Frequency 14 12 10 8 6 4 Frequency 14 12 10 8 6 4 2 3 3 4 3 51 3 6 9 12 15 18 21 6 0.0588 9 0.0784 0.0588 12 15 18 21 Cost Cost Frequency 14 12 10 8 6 4 Frequency 15 10 5 3 6 9 3 6 9 12 15 18 21 12 15 18 Comment on its shape. O This is a unimodal distribution with a peak at the 0-3 class. The distribution is positively skewed. This is a bimodal distribution with peaks at the 12-15 and 18-21 classes. The distribution is negatively skewed. O This is a bimodal distribution with peaks at the 0-3 and 6-9 classes. The distribution is positively skewed. O This is a unimodal distribution with a peak at the 9-12 class. The distribution is reasonably symmetric. 21 Cost Cost…

The table shows the historical in-state tuition rates for the University of Kalamazoo. Use the data to answer the questions and round your answers to two decimal places. Academic year Rate of tuition for one semester 2008–2009 $3,812 2009–2010 $4,002 2010–2011 $4,441 2011–2012 $4,905 2012–2013 $5,181   What is the percentage increase in tuition from the 2008–2009 school year to the 2012–2013 school year?

How was the cumulative percent column here computed? Please show how these numbers would be correct, if they are correct. I'm not quite sure how to calculate that last column, and what those numbers mean or how we got them. Thank you for your help. X F P % Cumulative % 200-210 9 0.2813 28.13 28.13 210-220 7 0.2188 21.88 50.00 220-230 6 0.1875 18.75 68.75 230-240 4 0.1250 12.50 81.25 240-250 4 0.1250 12.50 93.75 250-260 2 0.0625 6.25 100.00

e A researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research vas to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the esults of his study. Complete parts a) through e) below. E Click the icon to view the sample data. OA. The samples are independent. O B. The samples can be reasonably assumed to be random. OC. The population is given to be normally distributed. OD. The sample sizes are large (both greater than or equal to 30). O E. The sample sizes are not more than 5% of the population. :) Does the evidence suggest that community college transfer students take longer to attain a bachelor's degree? Use an a= 0.10 level of significance.…

This is an MCQ kindly answer with proper explanation