Add an airport 77% of recent flights have arrived on time. Hey sample of 11 flights is studied. What is the main number of flights that are on time?

Identify the type of sample ( Experimental or Observational) Then tell if the sample is biased 5.The researcher stands at a shopping mall and selects the first 75 shoppers as they walk by to fill out a survey.

Please show work In a sample of 100 people, 57 completed only high school, 23 went on to complete only some college, 13 went on to complete a two-year or four-year college, and 7 went on to graduate school. What proportion of the sample does not have a two-year or four-year college degree?  0.07 0.13 0.80 0.87

The price per share of stock for a sample of  companies was recorded at the beginning of the first financial quarter and then again at the end of the first financial quarter. How stocks perform during the first quarter is an indicator of what is ahead for the stock market and the economy. Use the sample data in the file StockQuarter to answer the following. Click on the datafile logo to reference the data.                               Beginning of 1st                                                           end of 1stCompany                                 Quarter                                                       QuarterBank of New York Mellon    53.82                        54.19     Kraft Foods                                   77.02        55.70    E.I. du Pont de Nemours and Company    109.00        102.57    Consolidated Edison    83.58                      79.95    Johnson & Johnson    139.23                                                 126.01    Union Pacific…

Please help explaining how to answer so I can study for my test. The Farm Program for the Montana State Department of Agriculture needs to choose a sample of farms in order to collect information about land utilization. Montana has 56 counties and the 26,800 farms across the state are currently categorized by county. The program would like to select a random sample of at least 112 farms and record the total acreage and the acreage used for pasture and range for each farm in the sample. Two plans have been proposed: Plan A: The program will randomly select 10 counties from the 56 counties. All farms within the 10 selected counties will be visited by a surveyor who will calculate the total acreage and acreage used for pasture and range. Plan B: The program will randomly select 2 farms from each county. All 112 selected farms will be visited by a surveyor who will calculate the total acreage and acreage used for pasture and range. Which of the following best describes the…

find sample variance of data   45,85,63,21,54,25,85,65

is it probable that the population proportion who most admire hillary Clinton is 24% or greater? explain your reasoning.

The times (in seconds)  878, 871, 906, 933, 930, 852, 890, 861, 882, 888, 897, 899, 879, 888, 848  Find the sample IQR is? And showing a boxplot of the data.

Determine if the following is an example of descriptive or inferential statistics. Researchers interviewed 500 people about an upcoming election. Based on the responses, they predicted that candidate Johnson would get 51% to 53% of the total vote. Descriptive Statistics O Inferential Statistics