The average hourly wage of workers at a fast food restaurant is $10.00/hr. Assuming that the...
The average hourly wage of workers at a fast food restaurant is $10.00/hr. Assuming that the wages are normally distributed with a standard deviation of $0.55. If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns less than $8.70 per hour?
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The average hourly wage of workers at a fast food restaurant is
$10.00/hr. Assuming that the...
A union of restaurant and food service workers would like to estimate this year's mean hourly...
A union of restaurant and food service workers would like to estimate this year's mean hourly wage, μ, of food service workers in the U.S. Last year's mean hourly wage was $8.14, and there is reason to believe that this year's value is less than last year's. The union decides to do a statistical test to see if the value has indeed decreased. The union chooses a random sample of this year's wages, computes the mean of the sample to...
A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage...
A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage for foodservice workers in the U.S. Last year's mean hourly wage was 58.14, and there is reason to believe that this year's value is greater than last year's The union decides to do a statistical test to see if it can be concluded that the mean has increased. The union chooses a random sample of 125 wages from this year Suppose that the population...
answer all and asap please 1) A large industry has an average hourly wage of $14...
answer all and asap please
1) A large industry has an average hourly wage of $14 per hour with a standard deviation of $4. What is the probability that a random sample of 50 workers will have an average salary less than or equal to $13.75? 2) On the average, 20% of students at CSI are lefties. If 40 students are sam- pled at random, use the Central Limit Theorem to approximate the probability that at least 5 are lefties....
The average hourly pay for a company is $20 with a standard deviation of $3. Furthermore,...
The average hourly pay for a company is $20 with a standard deviation of $3. Furthermore, it is known that the hourly pay rates are normally distributed. (a) [2] What is the probability that a randomly selected employee will have an hourly wage of at least $26? (b) [4] What are the minimum and the maximum hourly wages of the middle 90% of employees? (c) [4] If 15 of the employees have hourly pay rates less than $17, how many...
A company pays its employees an average wage of $15.90 an hour with a standard deviation...
A company pays its employees an average wage of $15.90 an hour with a standard deviation of $1.50. If the wages are approximately normally distributed and paid to the nearest cent, (a) what percentage of the workers receive wages between $13.75 and $16.22 an hour inclusive? (b) the highest 5% of the employee hourly wages is greater than what amount?
1. At a fast food restaurant, the waiting time at the drive-through window has an average of...
1. At a fast food restaurant, the waiting time at the drive-through window has an average of 3 minutes, with a standard deviation of 0.8 minutes. i. What is the probability that a random sample of 64 cars will have an average waiting time of less than 3.25 minutes? ii. Did you use the CLT to do this problem? Explain.
A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage,...
A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, u, of foodservice workers in the U.S. Last year's mean hourly wage was $8.08, and there is reason to believe that this year's value is greater than last year's. The union decides to do a statistical test to see if the value has indeed increased. The union chooses a random sample of this year's wages, computes the mean of the sample to be $8.45,...
3. The wages (hourly) in a particular industry has are mandated to be normally distributed with...
3. The wages (hourly) in a particular industry has are mandated to be normally distributed with mean $13.20 and standard deviation $2.50. One company in this industry employs 40 workers, and has an average hourly wage of $12.20. (a) Is there sufficient evidence to suggest that this company is paying substandard wages at the .01 level? (b) What is the probability that if we were to randomly select 40 workers from this industry, who were not being underpaid, that we...
The U.S. Bureau of Labor Statistics released hourly wage figures for various countries for workers in the manufacturing...
The U.S. Bureau of Labor Statistics released hourly wage figures for various countries for workers in the manufacturing sector. The hourly wage was $30.67 for Switzerland, $20.20 for Japan, and $23.82 for the U.S. Assume that in all three countries, the standard deviation of hourly labor rates is $4.00. Appendix A Statistical Tables a. Suppose 40 manufacturing workers are selected randomly from across Switzerland and asked what their hourly wage is. What is the probability that the sample average will...
Consumers spend an average of $13.80 on a meal at a restaurant. Assume that the amount...
Consumers spend an average of $13.80 on a meal at a restaurant. Assume that the amount spent on a restaurant meal is normally distributed and the standard deviation is $2.00. What is the probability that a randomly selected person spent more than $10.00? 0.644 0.029 0.971 0.336
A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage for foodservice workers in the U.S. Last year's mean hourly wage was 58.14, and there is reason to believe that this year's value is greater than last year's The union decides to do a statistical test to see if it can be concluded that the mean has increased. The union chooses a random sample of 125 wages from this year Suppose that the population...
answer all and asap please
1) A large industry has an average hourly wage of $14 per hour with a standard deviation of $4. What is the probability that a random sample of 50 workers will have an average salary less than or equal to $13.75? 2) On the average, 20% of students at CSI are lefties. If 40 students are sam- pled at random, use the Central Limit Theorem to approximate the probability that at least 5 are lefties....
The average hourly pay for a company is $20 with a standard deviation of $3. Furthermore, it is known that the hourly pay rates are normally distributed. (a) [2] What is the probability that a randomly selected employee will have an hourly wage of at least $26? (b) [4] What are the minimum and the maximum hourly wages of the middle 90% of employees? (c) [4] If 15 of the employees have hourly pay rates less than $17, how many...
A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, u, of foodservice workers in the U.S. Last year's mean hourly wage was $8.08, and there is reason to believe that this year's value is greater than last year's. The union decides to do a statistical test to see if the value has indeed increased. The union chooses a random sample of this year's wages, computes the mean of the sample to be $8.45,...
3. The wages (hourly) in a particular industry has are mandated to be normally distributed with mean $13.20 and standard deviation $2.50. One company in this industry employs 40 workers, and has an average hourly wage of $12.20. (a) Is there sufficient evidence to suggest that this company is paying substandard wages at the .01 level? (b) What is the probability that if we were to randomly select 40 workers from this industry, who were not being underpaid, that we...
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