A survey of a group's viewing habits over the last year revealed the following information: 29% watched gymnastics. • 28% watched baseball. • 20% watched soccer. 13% watched gymnastics and baseball.I • 10% watched baseball and soccer. • 11% watched gymnastics and soccer. 8% watched all three sports. Calculate the percentage of the group that watched soccer or gymnastics during the last year.

A number generator was used to simulate the percentage of people in a town who ride a bike. The process simulates randomly selecting 100 people from the town and was repeated 20 times. The percentage of people who ride a bike is shown in the dot plot. 10 20 30 40 50 60 70 80 90 100 Which statement is true about the population of the town? O Most likely, 50% to 60% of the town rides a bike. O Most likely, 60% to 75% of the town rides a bike. O Most likely, 40% to 50% of the town rides a bike. O Most likely, 80% to 90% of the town rides a bike.

A researcher shows a group of 5-year-olds, 6-year-olds, and 7-year-olds a video displaying violence.  He wants to test whether there are significant differences among the 3 groups on their levels of aggression after watching the video. What statistic should she conduct?

John Calipari, head basketball coach for the 2012 national champion University of Kentucky Wildcats, is the highest paid coach in college basketball with an annual salary of $5.4 million (USA Today, March 29, 2012). The sample below shows the head basketball coach's salary for a sample of 10 schools playing NCAA Division 1 basketball. Salary data are in millions of dollars. University Coach’s Salary University Coach’s Salary Indiana 2.2 Syracuse 1.5 Xavier   .5 Murray State   .2 Texas 2.4 Florida State 1.5 Connecticut 2.7 South Dakota State   .1 West Virginia 2.0 Vermont   .2 a.  Use the sample mean for the 10 schools to estimate the population mean annual salary for head basketball coaches at colleges and universities playing NCAA Division 1 basketball (to 2 decimals). b.  Use the data to estimate the population standard deviation for the annual salary for head basketball coaches (to 4 decimals).

In each scenario, identify the population, the sample, and any population parameters or sample statistics that are given. A medical study followed 675 cancer patients who received either the new drug Lafent or a standard chemotherapy drug. 76% of those who received Lafent were still living after eight months, compared to only 63% of those who received the standard chemotherapy drug open.

A researcher wants to know if mood is affected by music. She conducts a test on a sample of 4 randomly selected adults and measures mood rating before and after being exposed to classic rock music. The following are the mood ratings for the four participants:

x Resorts & Spas, a magazine devoted to upscale vacations and accommodations, published its Reader's Choice List of the top 20 independent beachfront boutique hotels in the world. The data shown are the scores received by these hotels based on the results from Resorts & Spas' annual Readers' Choice Survey. Each score represents the percentage of respondents who rated a hotel as excellent or very good on one of three criteria (comfort, amenities, and in-house dining). An overall score was also reported and used to rank the hotels. The highest ranked hotel, the Muri Beach Odyssey, has an overall score of 94.3, the highest component of which is 97.7 for in-house dining. If required, round your answer to three decimal places. Click on the datafile logo to reference the data.       Hotel Overall Comfort Amenities In-House Dining     Muri Beach Odyssey 94.3 94.5 90.8   97.7     Pattaya Resort 92.9 96.6 84.1   96.6     Sojourner's Respite 92.8 99.9 100.0   88.4…

In the class poll from the beginning of the year, you were asked what color car you drive. The results are summarized below. aqua 3 beige/tan/gold 39 black 80 blue 44 green 21 orange 3  pink 1 purple 3 red 45 silver 63 white 74 yellow 1 What is the mode for this data set?

The following data describes grades of students in physics. Complete the frequency table for this data. 91.3.96.7,91.4, 88.4.92.8, 96.7, 82.4, 87.3, 85.7, 95.2, 81.2, 93.2, 85.9, 84.9, 85.8, 83.5, 88.6, 82. I Determine the frequency of each class in the table shown. Grades of Students in Physics Class Frequency 78.0-81.9 82.0-85.9 86.0-89.9 90.0-93.9 94.0-97.9

The premiere of Game of Thrones' seventh season set a series record of 10.1 million viewers tuning in to the live broadcast, and the season finale got even more than that at 12.1 million. A researcher at HBO believes that the average number of viewers watching live is not equal to the average number of those streaming online. The data below demonstrate a sample the number of of people watching live for each episode and the number of people streaming for each of the same episode.  Episode Live (millions) Streaming (millions) Season 1 Episode 1 2.9 0.7 Season 3 Episode 4 8.4 5.0 Season 5 Episode 1 8.7 6.3 Season 5 Episode 5 8.6 6.0 Season 6 Episode 3 9.3 8.4 Season 7 Episode 1 10.11 6.4 Season 7 Episode 5 10.72 6.7 Season 7 Episode 7  12.10 7.5 Based on the results of your t-test, can we conclude that the mean number of people viewing live is different from the mean number of people streaming online?    Group of answer choices a) No, because the p value is greater…