sample of 303030 of their members about their running habits. Of the members surveyed, 999 said that they run more than 555 days a week. There are 848484 Freemont Run Club members. Based on the data, what is the most reasonable estimate for the number of Freemont Run Club members who run more than 555 days a week?

The Coca-Cola Company reported that the mean per capita annual sales of its beverages in the United States was 423 eight-ounce servings (Coca-Cola Company website, February 3, 2009). Suppose you are curious whether the consumption of Coca-Cola beverages is higher in Atlanta, Georgia, the location of Coca-Cola's corporate headquarters. A sample of 36 individuals from the Atlanta area showed a sample mean annual consumption of 460.4 eight-ounce servings with a standard deviation of s=101.9. Answer questions 8-10.

Among US Households, only 15% have a landline phone.  A telemarketing campaign will involve a SRS of 2250 households.  Let X be the number of households that have a landline phone among the 2250 households randomly chosen.   What is the mean of X? Do Not Round.

An industrial-organizational psychologist is interested in discovering the relationship between the tempo of preferred music that is played in a workplace and employee mood. Employees chose their favorite song on an MP3 player and then reported their moods when listening to that piece of music. A total of 10 participants were asked individually and brought in their own MP3 players; the least number of songs on an employee's MP3 player was 350. The sample data are presented as a scatterplot below. The psychologist wants to use a Pearson correlation coefficient to analyze the relationship. Considering the assumptions for this statistic, which of these statements is the correct course of action? A. The researcher has chosen the wrong statistic to represent this relationship. B. The researcher has violated a robust assumption and should be able to calculate r. C. The researcher has chosen the right statistic because all the assumptions are valid. D. The researcher has violated a…

PrActicE the legalization of marijuana. Among the Democratic voters surveyed, 158 of the 200 people aged 18-29 and 210 of the 300 people aged 50-64 supported legalizing marijuana. Is this difference significant at a = .05? A random sample of individuals in one town was surveyed about their position on

A researcher surveyed ten (10) patients at a doctor's office using a questionnaire.  The participants (or their guardians) provided their ages.  12, 1, 9 , 50, 34, 40,18, 29, 16, 46   What is the mean age for the participants in the sample? (Round to nearest hundredth, if needed).

Suppose an internet marketing company wants to determine the current percentage of customers who click on ads on their smartphones. How many customers should the company survey in order to be 90% confident that the estimated proportion is within 2 percentage points of the true population proportion of customers who click on ads on their smartphones?