For each question below, indicate whether you think the histogram described shou
ID: 3237360 • Letter: F
Question
For each question below, indicate whether you think the histogram described should look like approximately a bell-shaped (normal) curve and give a brief explanation. Please help!! Thank you!
For each of the questions below, a histogram is describ Indicate in each case whether you think the histogram should look like approximately a bell-shaped (normal curve, and give a brief explanation why (one sentence is probably sufficient). There are no data for these questions, so you will not need to use the computer to answer these questions. 13. Two hundred students in a statistics class each flip a coin 40 times and record the number of heads. The numbers of heads are plotted in a histogram. 14. Two hundred students in a statistics each roll a die 40 times and record the sum of the numbers they got on the 40 rolls. They make a histogram of the 200 sums 15. One hundred CEOs report their annual salaries, and these salaries are plotted in a histogram. 16. A police department in a small city keeps track of the number of murders in the city each day for a year and records the 365 values in a histogram. 17. The day before an election, fifty different polling organizations each sample 1000 people and record the percentage who say they will vote for the Democratic candidate. The 50 values are plotted in a histogram. Sal Sal 18. The fifty polling organizations also record the average age of the 1000 people in their sample, and the 50 averages are plotted in a histogram. 480 evlExplanation / Answer
13:
It should be approximately normal distribution. Beucase sample size is large and it is sampling distribution of sample proprotion.
14:
It should be approximately normal distribution. Beucase sample size is large and it is sampling distribution of sample sum.
15:
It should not be normal becuase some CEO's have very large salaries in comparision to others. SO it should be skewed to right.
16:
It is not approximately normal.
17:
It is apprximately normal.
18:
It is apprximately normal.
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