Score: \( 16 / 18 \) Progress saved Done Answered: \( 10 / 11 \) 111 students at a college were asked whether they had completed their required English 101 course, and 81 students said "yes". Find the best point estimate for the proportion of students at the college who have completed their required English 101 course. Round to four decimal places. Submit Question

A sample is selected from a population with \( \mu=80 \), and a treatment is administered to the sample. If the sample standard deviation is 9 , which set of sample characteristics is most likely to lead to a decision to reject \( H_{0} \) ?

9 A central angle of circle \( Q \) measures \( 250^{\circ} \) and its intercepted arc is \( (4 x-2)^{\circ} \). What is th value of \( x \) ? \( \begin{array}{llll}\text { A. } 53 & \text { B. } 63 & \text { C. } 73 & \text { D. } 83\end{array} \) \( \widehat{A B} \) and \( \widehat{B C} \) formed a semicircle. If the measure of \( \overparen{A B} \) is equal to \( 3 x+2 \) and the measure of \( \widehat{B C} \) is equal to \( 2 x+3 \) what is the measure of \( \widehat{A B} \) ? \( \begin{array}{llll}\text { A. } 35 & \text { B. } .80 & \text { C. } 107 & \text { D. } 120\end{array} \)

b) Animales, plantas y microorganismos c) Idiomas, culturas y rasgos físicos d) Minerales, tipos de suelo y fósiles

The \( t \)-value used to calculate a \( 95 \% \) confidence interval will correspond with a two-tailed a \( = \)

6. Si \( U=(2,-2,1) \) y \( V=(3,1,2) \), encuentra: b. Los ángulos que forma \( U \) con el eje \( \mathbf{x} \) y con el plano \( \mathbf{x y} \).