Nationally, the per capita monthly fuel oil bill is $110. A random sample of 36 cities in the Southeast average $78, with a standard deviation of $4. Is the difference significant? Summarize your conclusions in a sentence or two.

In the 2014 MLB season the Los Angeles Dodgers won 94 games and lost 68 to finish in first place in the National League Western Division. Over the 162 games of the regular season they scored an average of 4.43 runs per game, with a standard deviation of 2.88 runs per game. The distribution of their 162 run PERFORMANCES is roughly symmetric, unimodal, and bell-shaped. Stadium. Photo credit losangeles.dodgers.mlb.com bell chanedeurve and labelina t OOK TIKe by u ond mo mean (b) am Would score fowerL yumes would you exXpe (d) In what number of the games would you expect the Dodgers to score between 5.5 and 7.31 runs?

The 2011 gross sales of all firms in a large city have a mean of $2.4 million and a standard deviation of $ 0.6 million. Using Chebyshev's theorem, find at least what percentage of firms in this city had 2011 gross sales of $1.2 to $3.6 million. Round your answer to the nearest whole number. Enter your answer in accordance to the question statement %

The sample mean amount of savings is $

According to a recent survey, the salaries of assistant professors have a mean of $41,750 and a standard deviation of $8000. Assuming that the salaries of assistant professors follow a normal distribution, find the proportion of assistant professors who earn at most $50,000. Round your answer to at least four decimal places.

Refer to the accompanying table, which describes the number of adults in groups of five who reported sleepwalking. Find the mean and standard deviation for the numbers of sleepwalkers in groups of five. E Click the icon to view the data table, The mean is sleepwalker(s). (Round to one decimal place as needed.) The standard deviation is sleepwalker(s). (Round to one decimal place as needed.) Table of numbers of sleepwalkers and probabilities P(x) 0.183 0.368 0.305 3 0.115 4. 0.025 0.004 Print Done Enter your answer in each of the answer boxes. a Speech Present.pptx 2 pecha kucha pr.pptx O Team Pecha Ku.docx ch4Bprac.pdf The Canaries pptx Show All MacBook Air 吕0 F3 esc F8 F9 F10 F1 F2 F5 F6 F7 @ #3 2$ & 3 7 8 Q W E Y U P T

In the 2014 MLB season the Los Angeles Dodgers won 94 games and lost 68 to finish in first place in the National League Western Division. Over the 162 games of the regular season they scored an average of 4.43 runs per game, with a standard deviation of 2.88 runs per game. The distribution of their 162 run PERFORMANCES is roughly symmetric, unimodal, and bell-shaped. Dodger Stadium. Photo credit losangeles.dodgers.mlb.com Skete what this distIDUGIONS d mean + 3 SD. n fa a NO wat p In what number of their games would you expect the Dodgers to score fewer than 5.5 runs?

Please provide answer for part A and B. Thanks. (Only answer is needed, not explanation)

For a certain type of job, it costs a copany an average of $231 to train an employee to perform the task. The standard deviation is $5. Find the minimum percentage of data values that will fall in the range of $219 to $243. Use Chebyshev's theorem.

Recently, a random sample of 13-18 year olds was asked, "How much do you currently have in savings?" The data in the table represent the responses to the survey. Approximate the mean and standard deviation amount of savings. Click the icon to view the frequency distribution for the amount of savings. The sample mean amount of savings is $ (Round to the nearest dollar as needed.) Frequency distribution of amount of savings Savings $0-$199 $200-$399 $400-$599 $600-$799 $800-$999 $1000-$1199 $1200-$1399 Print Frequency 338 97 50 25 10 7 3 Done X