An air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler is asked to provide a rating for a certain airport. The ratings obtained from the sample of 50 business travelers follow. 4 6 87 6 6 3 3 8 6 10 4 8 7 8 7 5 96 8 3 8 54 4 4 4 8 5 4 7 2 59 9| 748 9 5 5 978 3 10 9 9 6 9 Develop a 95% confidence interval estimate of the population mean rating for this airport. (Round your answers to two decimal places.) to

Data was collected for 224 randomly selected 10 minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall were recorded. The data is summarized in the table below. Number  of Guests      Frequency    120 – 124 23 125 – 129 32 130 – 134 97 135 – 139 56 140 – 144 16 What is the class width for this GFDT?

About 4% of the population has a particular genetic mutation. 600 people are randomly selected. Find the mean for the number of people with the genetic mutation in such groups of 600. Submit Question acer

About 5% of the population has a particular genetic mutation. 600 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 600.

The Affordable Care Act created a market place for individuals to purchase health care plans. A sample of premiums for the bronze level health insurance are given in the table. Create frequency polygon for the data using 5 classes. 40 -35 -30 -25 20 -15 -10 -5 $293 $165 $233 $122 $262 $263 Select the correct frequency polygon. $157 $243 $141 $140 $176 $158 -40 -35 -30 -25 20 -15 -10 -5 50 100 150 200 250 300 350 50 100 150 200 250 300 $228 $173 $275 $179 $180 $221 ; } 5 5 } 5 40 35 30 -25 20 15 10 -5 50 $163 $241 $209 $294 $110 $142 $143 $167 $174 $281 $111 $235 $256 $166 $119 $194 $206 $258 50 100 150 200 250 300 350 100 150 200 250 300