The wait time for a table at a particular restaurant are normally distributed, with a mean of 25 minutes. Seventy-five percent of the parties who dine there wait less than 30 minutes for a table. What is the standard deviation of wait times at the restaurant?What percent of the parties wait for more than 15 minutes?
The wait time for a table at a particular restaurant are normally distributed, with a mean...
1. The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.9 days and a standard deviation of 2.1 days. What is the probability of spending more than 2 days in recovery? (Round your answer to four decimal places.) 2. The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.8 days and a standard deviation of 2.4 days. What is the 90th percentile for recovery times? (Round...
The wait times to see a doctor at a large clinic are normally distributed with a mean of 68.2 minutes and a standard deviation of 14.8 minutes. If a simple random sample of 25 patients is selected, find the probability that the sample mean wait time is more than 75 minutes. Round to four decimal places.
The wait times in line at a grocery store are roughly distributed normally with an average wait time of 7.6 minutes and a standard deviation of 1 minute 45 seconds. What is the probability that the wait time is less than 7.9 minutes? What will the probability look like before you find the values on the z table?
bution The time required to fill a prescription at a local pharmacy is at is normally distributed with a mean of 10 minutes and a standard deviation of 2 minutes. a. What is the probability that a randomly selected customer experiences a wait-time of less than 5 minutes? b. Find the wait time that defines the upper 1 percent.
bution The time required to fill a prescription at a local pharmacy is at is normally distributed with a mean of...
The wait times in line at a grocery store are roughly distributed normally with an average wait time of 7.6 minutes and a standard deviation of 1 minute 45 seconds. What is the probability that the wait time is less than 7.9 minutes? What will the probability look like before you find the values on the z table? (Hint: to get something off the z table it must be in the form P (z< +a)) P (z> 0.67) P (z<0.4)...
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. Answer the following questions: A) What is the probability of completing the exam in ONE hour or less? B) what is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes? C) Assume that the class has 60 students and that the...
The amount of time Americans commute to work is normally distributed with mean of 45 minutes and a standard deviation of 15 minutes. The 25% of Americans with the LONGEST commuting times all get to work in more than how many minutes? You can use two decimal places of accuracy.
The time spent waiting in the line is approximately normally distributed. The mean waiting time is 5 minutes and the standard deviation of the waiting time is 3 minutes. Find the probability that a person will wait for less than 7 minutes. Round your answer to four decimal places.
The time to complete a simple haircut is normally distributed with a mean of 25 minutes and a standard deviation of 4 minutes. What percent of customers require less than 32 minutes for a simple haircut? a. 95.99% b. 97.72% c. 4.01% d. 45.99%
5. A particular fruit's weights are normally distributed, with a mean of 704 grams and a standard deviation of 12 grams. If you pick 12 fruit at random, what is the probability that their mean weight will be between 692 grams and 701 grams (Give answer to 4 decimal places.) 6. A particular fruit's weights are normally distributed, with a mean of 286 grams and a standard deviation of 18 grams. If you pick 25 fruit at random, what is...