The least-squares regression line is: a. the line that passes through the most data points. b. the line that makes the sum of the squares of the vertical distances of the data points from the line (the sum of squared residuals) as small as possible. c. the line such that half of the data points fall above the line and half fall below the line. d. All of the answer options are correct.

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 31   said they drove alone. 32   rode in a carpool. 28   rode public transportation. 4   used both carpools and public transportation. 5   used both a carpool and sometimes their own cars. 3   used buses as well as their own cars. 1   used all three methods. How many used none of the above-mentioned means of transportation?students

A consumer survey was conducted to examine patterns in ownership of tablet computers, cellular telephones, and Blu-ray players. The following data were obtained: 311 people had tablet computers, 236 had cell phones, 265 had Blu-ray players, 65 had all three, 62 had none, 92 had cell phones and Blu-ray players, 57 had cell phones but no computers or Blu-ray players, and 108 had computers and Blu-ray players but no cell phones. (Round your answers to one decimal place.) A) What percent of people surveyed owned a cell phone? B) What percent of the people surveyed owned only a cell phone?

A survey of 150 freshmen business students at a local university produced the results listed below. How many students took only religion? 35 took history;42 took science;43 took religion;19 took history but not science;14 took science and religion;15 took history and religion;6 took all three

What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and others, indicated that most people prefer the color blue. In fact, about 24% of the population claim blue as their favorite color.† Suppose a random sample of n = 53 college students were surveyed and r = 11 of them said that blue is their favorite color. Does this information imply that the color preference of all college students is different (either way) from that of the general population? Use ? = 0.05.

Please list your answers to part a, b, c, and d. Suppose you try to conduct a presidential approval poll of 5,000 likely U.S. voters. You know that 29% of the voters are registered as Republican, 34% are registered as Democrat, and 28% are registered as Independent. If you are going to construct a representative sample of this population, approximately how many of the likely voters in the sample should be: a. Republican b. Democrat c. Independent d. Notice the sum of the percents is not 100. What could account for this?

What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and others, indicated that most people prefer the color blue. In fact, about 24% of the population claim blue as their favorite color.† Suppose a random sample of n = 53 college students were surveyed and r = 11 of them said that blue is their favorite color. Does this information imply that the color preference of all college students is different (either way) from that of the general population? Use ? = 0.05. (a) What is the level of significance? (b) What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value of the test statistic. (Round your answer to four decimal places.)

What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and others, indicated that most people prefer the color blue. In fact, about 24% of the population claim blue as their favorite color.t Suppose a random sample of n = 59 college students were surveyed and r = 8 of them said that blue is their favorite color. Does this information imply that the color preference of all college students is different (either way) from that of the general population? Use a = 0.05. A USE SALT (a) What is the level of significance? State the null and alternate hypotheses. O Ho: p = 0.24; H,: p + 0.24 O Họ: p = 0.24; H: p 0.24 (b) What sampling distribution will you use? O The standard normal, since np > 5 and ng > 5. The standard normal, since np 5 and ng > 5. The Student's t, since np < 5 and ng < 5. What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value of the test statistic.…