Angela took a general aptitude test and scored in the 91st percentile for aptitude in accounting. A) What percentage of the scores were at or below her score? B) What percentage were above?

At an ice cream shop, 145 customers were surveyed about what flavor is their favorite. The results of the survey are in the table below. Favorite Flavor - Number Chocolate         -  87 Vanilla               -  40 Strawberry       -    16 What percent of students surveyed chose Chocolate as their favorite flavor?

b) Calculate the p-value for Ha: ?2 > 29, n = 14, ?2 = 32.7. (c) Calculate the p-value for Ha: ?2 ≠ 43, df = 26, ?2 = 39.

In research about the population of a county with 100,000 inhabitants, a sample of 3000 households was selected to be interviewed. For 1200 of the 3000 households that researchers attempted to contact, there was no one home willing to participate. For this survey, the nonresponse rate was (Give your answer as a whole number.) eBook

Customers arrive at a rate of 40 per hour. You can process 50 customers per hour. a. What percentage of the time are you busy? b. What is the average number of customers in the system? c. What is the average time that a customer spends in the system (in minutes)?

Solve the problem. At the Jumping Jack cookie factory, quality assurance inspectors remove broken or otherwise defective cookies from a moving conveyor belt prior to packaging. Based on past studies, the plant manager knows that the inspectors eliminate 98% of the defective cookies at a conveyor belt speed of 9 feet per minute. As the belt speed increases, the factory can produce more cookies per hour, but at the cost of lower quality of the packaged product. Inspectors collect only 60% of defective cookies at a belt speed of 18 feet per minute. QA Inspector Efficiency Inspector efficiency, % defective cookies eliminated 100 90 60 |(9.98) 50- 10 11 12 13 14 15 Belt speed, feet per minute (18,60) 16 17 18 a. Find an equation of the line through the given points. Write the equation in slope-intercept form. Round the slope and y-intercept each to 1 decimal place. b. Use the equation from part (b) to predict the efficiency of the inspectors at a belt speed of 15 feet per minute. Round to…

If o = 6.2 and SD( y = 2.86 , what is n =? Note:

The 2017 Chapman University Survey of American Fears asked a random sample of 1207 American adults if they believed that aliens had come to Earth in modern times, and 26% responded yes. Complete parts (a) through (d) below.

There are twelve sheep in the field.Eduardo noticed that there are more goats in the field than there are sheep.Which of the following is a possible ratio of sheep to goats?A. 12/5 B. 12/12 C. 17/12 D.12/17

In a survey of 3343 adults aged 57 through 85​ years, it was found that 83.3%of them used at least one prescription medication. Complete parts​ (a) through​ (c) below. a. How many of the 3343 subjects used at least one prescription​ medication?