5302FA21FINAL.pdf (page 3 of 4) A Q Search 6. The local library if they get more patrons visiting by shifting their Sunday evening hours to Saturday evening (currently the library is closed on Saturday evening). They take a sample of days with the current Sunday and new Saturday evening hours. I Saturday: 60, 60, 60, 80, 80, 90, 70 Sunday: 80, 70, 70, 30, 40, 30, 60 Provide null and alternative hypotheses in formal terms and layperson's terms for the t test for independent samples (10) b. Do the math and reject/accept at a=.05 (15) c. Explain the results in layperson's terms (20) d. Calculate and explain a 95% confidence interval in layperson's terms if appropriate. If not, you must explain why not. (10) 7. The library thinks the average number of patrons for ALL weekend evening hours is 70. Use the ALL the data from Problem #6. a. Provide the null and alternative hypotheses formal and layperson's e g (informal) terms for a t one-sample test. (5) b. Do the math and reject/accept at a=0.05 (15) anizz iber or cl c. Explain the results in layperson's terms (20) ift, wh charity lamics ll the no See next page + 14 tv W X V MacBook A 30 888 DII DD FA F5 F6 F7 F8 F9 F10 F11 F12 & 4 5 6 8 9 O R T Y U O P5. The ICMA is interested in whether the number of employees calling in sick per 1000 employees per day for medium-to-large local governments is a function of the % fully vaccinated in their county. They take a sample of one random day for 9 local governments in randomly chosen counties, all with similar employee staffing numbers. % Fully Vaccinated # Employees Calling in Sick per 1000 15 125 20 115 20 90 30 80 70 30 40 18 50 13 70 20 90 30 see next page for questions an a) State your null formally and in lay terms for a simple regression (10) ibe or b) Calculate r and the regression line (y = a + bx) and reject/accept at a=.05. You must ift , state the estimated regression line even if Ho is accepted and show math for t. (10) cha lam c) Explain your findings in lay terms using r-square, r, b as appropriate (20) ll the 14 City W X V MacBook Air 80 F4 F6 DII F5 DD F7 F8 F9 F10 F11 $ & 4 5 7 8 9 O R T Y U O P F G H K L