2. 45 % of the employees in a company take public transportation daily to go to...
2. 45 % of the employees in a company take public transportation daily to go to work. For a random sample of 7 employees, what is the probability that at most 2 employees take public transportation to work daily?
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2. 45 % of the employees in a company take public transportation
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At a certain company, 42% employees work part time and 70% take public transportation to get...
At a certain company, 42% employees work part time and 70% take public transportation to get to work. Of employees that are part time, 28% take public transportation. Let A = event that an employee is part time. and B = event that an employee takes public transportation to work. What is P(A and B)?
eBook Exercise 5.29 (Algorithmic)) In San Francisco, 30% of workers take public transportation daily (USA Today,...
eBook Exercise 5.29 (Algorithmic)) In San Francisco, 30% of workers take public transportation daily (USA Today, December 21, 2005) a. In a sample of 6 workers, what is the probability that exactly three workers take public transportation daily (to 4 decimals including interim calculations)? b. In a sample of 6 workers, what is the probability that at least three workers take public transportation dally (to 4 decimals including interim calculations)?
IN An EXCEL FILE USING EXCEL FUNCTIONS CALCULATIONS In San Francisco, 30% of workers take public...
IN An EXCEL FILE USING EXCEL FUNCTIONS CALCULATIONS In San Francisco, 30% of workers take public transportation daily. In a sample of 10 workers, a. Clearly state what the random variable in this problem is? b. What is an appropriate distribution to be used for this problem and why? c. What is the probability that exatly three workers take public transportation daily? d. What is the probability that NONE of workers take public transportation daily? e. What is the probability...
The following table provides a probability distribution for the random variable y 3 5 7 8...
The following table provides a probability distribution for the random variable y 3 5 7 8 f(y) 0. 10 0. 30 0.40 0. 20 Oa. Compute E(y) (to 1 decimal). 6.2 b. Compute Var(y) and σ (to 2 decimals). C \ Var(y) In San Francisco, 30% of workers take public transportation daily (USA Today, December 21, 2005). a. In a sample of 7 workers, what is the probability that exactly three workers take public transportation daily (to 4 decimals including...
A survey of 350 residents of a certain city found that 82 used public transportation daily....
A survey of 350 residents of a certain city found that 82 used public transportation daily. You wish to find a 95% confidence interval for the true proportion of residents who use public transportation daily. What is the lower limit of the interval?
Research has revealed that forty percent of Internet company employees have stock options in their companies....
Research has revealed that forty percent of Internet company employees have stock options in their companies. Consider a random sample of 12 employees from an Internet company, (a) What is the probability that at least 7 employees have stock options in the company? What is the mean number of Internet company employees who have stock options in their companies, in a sample of 12 employees? What is the probability that at most 7 employees will not have stock in the...
A company makes all its employees take a leadership test where a simple random sample of...
A company makes all its employees take a leadership test where a simple random sample of 25 employees is selected. Recall that the population of scores is normally distributed with mean of 145 and a population standard deviation of 20. Answer the following probability question for random samples like this. (a) What is the mean of the distribution of means for all samples of this size? What standard error applies to the distribution of means for groups of this size?...
According to the U.S. Census Bureau, 20% of the workers in Atlanta use public transportation. Suppose...
According to the U.S. Census Bureau, 20% of the workers in Atlanta use public transportation. Suppose 25 Atlanta workers are randomly selected. (Hint: use sampling distribution) (a) What is the standard deviation of the sample proportion of the selected workers who use public transportation? (b) What is the probability that the proportion of the selected workers who use public transportation is less than 32%? (c) What is the probability that the proportion of the selected workers who use public transportation...
please read the questions carefully. I need the right answer. 3. A CT Public Transportation Commission...
please read the questions carefully. I need the right
answer.
3. A CT Public Transportation Commission survey asked 380 commuters (170 women and 210 men) "What is your primary mode of transportation to work?" The following table summarizes the results of the survey: Total Male 31 Female 37 68 Public Transportation Drives alone 162 102 264 Other means 17 31 48 Total 210 170 380 a. [2 pts) What is the probability that a randomly selected responder Drives alone? b....
3. A CT Public Transportation Commission survey asked 380 commuters (170 women and 210 men) "What...
3. A CT Public Transportation Commission survey asked 380 commuters (170 women and 210 men) "What is your primary mode of transportation to work?" The following table summarizes the results of the survey: Total Male 31 Public Transportation Drives alone Female 37 68 162 102 Other means 264 48 17 31 Total 210 170 380 c. [2 pts) What is the probability that a randomly selected responder Drives alone? b. [2 pts) What is the probability that a randomly selected...
eBook Exercise 5.29 (Algorithmic)) In San Francisco, 30% of workers take public transportation daily (USA Today, December 21, 2005) a. In a sample of 6 workers, what is the probability that exactly three workers take public transportation daily (to 4 decimals including interim calculations)? b. In a sample of 6 workers, what is the probability that at least three workers take public transportation dally (to 4 decimals including interim calculations)?
IN An EXCEL FILE USING EXCEL FUNCTIONS CALCULATIONS In San Francisco, 30% of workers take public transportation daily. In a sample of 10 workers, a. Clearly state what the random variable in this problem is? b. What is an appropriate distribution to be used for this problem and why? c. What is the probability that exatly three workers take public transportation daily? d. What is the probability that NONE of workers take public transportation daily? e. What is the probability...
The following table provides a probability distribution for the random variable y 3 5 7 8 f(y) 0. 10 0. 30 0.40 0. 20 Oa. Compute E(y) (to 1 decimal). 6.2 b. Compute Var(y) and σ (to 2 decimals). C \ Var(y) In San Francisco, 30% of workers take public transportation daily (USA Today, December 21, 2005). a. In a sample of 7 workers, what is the probability that exactly three workers take public transportation daily (to 4 decimals including...
Research has revealed that forty percent of Internet company employees have stock options in their companies. Consider a random sample of 12 employees from an Internet company, (a) What is the probability that at least 7 employees have stock options in the company? What is the mean number of Internet company employees who have stock options in their companies, in a sample of 12 employees? What is the probability that at most 7 employees will not have stock in the...
please read the questions carefully. I need the right
answer.
3. A CT Public Transportation Commission survey asked 380 commuters (170 women and 210 men) "What is your primary mode of transportation to work?" The following table summarizes the results of the survey: Total Male 31 Female 37 68 Public Transportation Drives alone 162 102 264 Other means 17 31 48 Total 210 170 380 a. [2 pts) What is the probability that a randomly selected responder Drives alone? b....
3. A CT Public Transportation Commission survey asked 380 commuters (170 women and 210 men) "What is your primary mode of transportation to work?" The following table summarizes the results of the survey: Total Male 31 Public Transportation Drives alone Female 37 68 162 102 Other means 264 48 17 31 Total 210 170 380 c. [2 pts) What is the probability that a randomly selected responder Drives alone? b. [2 pts) What is the probability that a randomly selected...
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