(05.04 MC)  A researcher has conducted a survey using a simp…

(05.04 MC)  A researcher has conducted a survey using a simple random sample of 50 licensed drivers to create a confidence interval to estimate the proportion of licensed drivers favoring the construction of a new stoplight. Assume that the sample proportion does not change. The researcher now decides to survey a random sample of 200 people instead of 50 licensed drivers. Which of the following statements best describes how the confidence interval is affected by this change? (3 points)

(04.01 MC)  To increase sales, a local donut shop began putt…

(04.01 MC)  To increase sales, a local donut shop began putting an extra donut in some of the boxes. Customers are unaware of which boxes had the extra donut and the shop owner claimed that one in seven boxes had an extra donut. Eight customers each bought one box of donuts at the shop. Let X = the number of customers that bought a box containing an extra donut.Part A: Is X a binomial random variable? Explain. (3 points)Part B: What is the mean and standard deviation of X? Provide an interpretation for each value in context. (4 points)Part C: Two of the eight customers buy a box of donuts with an extra donut. Is the shop’s claim accurate? Compute P(X ≥ 2) and use the result to justify your answer. (3 points) (10 points)

Indicate whether the following reactions are endothermic or…

Indicate whether the following reactions are endothermic or exothermic. Why? (4 points). Also, whether reactants or products have higher entropy in each of the following reactions and why? (4 points)        2 H2 (g)   +  S2(s)       →       2 H2S (g)     +    21Kcal                 2CO (g)  +  O2 (g)     →     2 CO2 (g)         ΔH = 25 kJ