A researcher randomly selected 100 adults aged 18-25 and 100 adults aged 50-60. Within each age group, she recorded the number of smokers.  Group of answer choices a.quantitative, dependent b.qualitative, independent c.quantitative, independent d.qualitative, dependent

College students were surveyed to check what they favored between basketball, football or baseball. The result of the survey is listed in the table below.     Favorite sports   Basketball Football Baseball Total Male 22 40 15   Female 45 12 16   Total

A Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Seventeen people answered that they generally sell three cars; nineteen generally sell four cars; eleven generally sell five cars; nine generally sell six cars; nine generally sell seven cars. a. Complete the table. Enter the exact answers (i.e. enter your answers for the relative and cumulative relative frequencies as fractions, not as decimals). Data Value (# cars) Number 3 4 5 6 7 Table 2.42 Frequency Relative Frequency Cumulative Relative Frequency Number Number Number Number Number Number Number Number Number Number b. What does the frequency column in Table 2.42 sum to? c. What does the relative frequency column in Table 2.42 sum to? Number Number Number Number Number

Jovan asked 2000 people if they are afraid of spiders. 274 people said yes. What percent of the people surveyed does this represent?

Researchers wanted to know the effectiveness of a new allergy medicine.  A study was conducted on 500 adults who experience allergy symptoms.  Each adult was randomly assigned to receive the new allergy medicine or a placebo.  Researchers recorded whether or not their symptoms improved within 1 week. a.   Complete the two-way table summarizing the findings.   Allergy Medicine Placebo Total Symptoms Improved  85 80   Symptoms DidNot Improve         Total 215    285 500    b.  Use the study results to complete the following.  Round your answer to the nearest tenth of a percent, as needed. Notice the percent sign is already included, so you just need to type the number.  What percent of the adults in this study were given the new allergy medicine?  % What percent of those who experienced improvements received the allergy medicine?   %  What percent of those who received the allergy medicine experienced improvements?   %  What percent of those who did not received the allergy…

Several years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 63% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is. (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…

c) A major baseball league season came to an abrupt end in the middle of sporting season in 1999. In a poll of 600 adults, 174 blamed the players for the strike, 204 blamed the owners and the rest held various other opinions. Estimate the difference between the proportion of adults who blame players for the strike and the proportion of adults who blame the owners and interpret what the difference implies. What percent the adults have varying opinions on the strike.

Approximately 21% of music lovers like Country Music. Of those who do, 97% do not have mild brain damage.What percent of music lovers like Country and have Brain Damage?

A sample of Reese's pieces contains the following: 23 Orange, 14 Brown, 18 Yellow.  What is the proportion of orange? Round to two places

Holiday Blues. A poll was conducted by Opinion Research Corporation to estimate the proportions of men and women who get the “holiday blues.” Identify the a. specied attribute.b. two populations.c. two population proportions.d. two sample proportions.e. According to the poll, 34% of men and 44% of women get the “holiday blues.” Are the proportions 0.34 and 0.44 sample proportions or population proportions? Explain your answer.