Find the sample size necessary for an 80% confidence level with a maximal margin of error e = 0.12 for the mean weights of the hummingbirds. (round up to the nearest whole number.) 6 correct: your answer is correct. hummingbirds

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?