How many adults must be surveyed in order to be 95% confident that the sample percentage is in error by no more than three percentage points?

If your height is at 58th percentile in your age group, which of the following statement is TRUE ? Group of answer choices There are 58% people whose heights are the same. There are other 42% people whose height are at or below your height. Your height is 5 feet and 8 inches. There are other 58% people with height at or above your height. There are other 42% people with height at or above your height.

u refers to the population mean while x refers to the sample mean O A. True O B. False ts ft or 2

The Chicago Cubs win an average of 56.8% of all their games.  How should this data be classified?     A.  None of these Options B.  Quantitative C.  Qualitative D.  Categorical

Name 3) The Tire Rack, an online distributor of tires and wheels, conducts extensive testing to provide customers with products that are right for their vehicle, driving style, and driving conditions. In addition, the Tire Rack maintains an independent customer survey to help drivers help each other by sharing their long-term tire experiences (The Tire Rack website, August 1, 2016). The following data shows survey results (one to 10 scale with 10 being the highest rating) for 18 high performance all season tires. The variable tread wear rates quickness of wear based on drivers expectations, the variability dry traction rates the grip of a tire on a dry road, the variable steering rates the tires steering responsiveness, and the variable buy again rates the driver's desire to purchase the same tire again. Tire Sumitomo HTR A/S PO2 Goodyear Eagle Sport All-Season Michelin Pilot Sport A/S 3 Kumho Ecsta PA 31 Firestone Firehawk Wide Oval AS BFGoodrich g-Force Super Sport A/S Yokohama AVID…

A new statistics book has been written and a faculty member and a student are asked to rank the new book and the other five best statistics books. How much do the student and professor agree on their assessment of the books (1 being the favorite, 6 being the least)? Use the data below to answer the following question:

. A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of them had one or more tattoos. Based on this survey, can you conclude that the percentage of people aged 18-29 who have a tattoo is less than 25%? Use the a = significance. 0.01 level of

A congressperson wants to come up with a single value to describe the prices of homes in their district. However, their district consists of a few homes that are extremely expensive compared to the others. Which descriptive statistic should they use? a. Range b. Mode c. Median d. Mean

According to a college survey, 32% of all students work full time. Find the mean for the number of students who work full time in samples of size 16. Round your answer to the nearest hundredth if needed.

How many samples or treatments are here?   490 undergraduate students at a state university in the southwestern region of the United States were surveyed. Each student in the sample was classified according to class standing (freshman, sophomore, junior, or senior) and body are category (body piercings only, tattoos only, both tattoos and body piercings, no body art). Use the data in the accompanying table to determine if there is an association between class standing and body art category. Assume that it is reasonable to regard the sample as representative of the students at this university. Use α = 0.01.                                                             Freshman  Sophmore   Junior    Senior Body Piercings                                          61              7              14          86 Only Tattoos                                             43              11             10         64 Only Mildly Piercings and Tattoos            20                9              7…