Waiting time at a restaurant

Assignment Help Basic Statistics
Reference no: EM13102997

Suppose the waiting time at a restaurant is normally distributed with a mean of 12 minutes and a standard deviation of 6 minutes. What is the probability that it will take less than than 20 minutes to receive your meal (please round your answer to 4 decimal places).

Reference no: EM13102997

Questions Cloud

Z-score-calculate the probability : A portfolio manager believes that tomorrow's foreign exchange rate of German marks per US dollar will be Normally distributed with mean 2.03 and standard deviation 0.08. Using the manager's numbers:
How many electrons are also emitted : The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons.
What is the ratio of the final sound intensity : The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 21 to 59 dB. What is the ratio of the final sound intensity to the original sound intensity?
Probability of picking two people : If there are 20 people in the room, 12 men and 8 women, what is the probability of picking two people, without replacement, getting a woman on the first and a man on the second?
Waiting time at a restaurant : Suppose the waiting time at a restaurant is normally distributed with a mean of 12 minutes and a standard deviation of 6 minutes.
Determining probability of tournament : It is estimated that 3% of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 90% accurate.
How-use technical-conceptual skills to maintain environment : How could he utilize technical, human, and conceptual skills to maintain the environment which encourages innvation and prossionalism among virus hunter?
Find time at which the trooper overtakes the car : A car traveling at a constant speed of 22.5 m/s passes a trooper hidden behind a billboard. One second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.90 m/s2.
Marketing director of harley-davidson : As the Marketing Director of Harley-Davidson, you need to determine what your customers would like in the next model. You put a survey on the Harley Web site. Is this a good frame from which to select your sample? Explain.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Developing project network using aoa

Developing project network using AOA that determines completion times.

  Total maximization of expected profit

What are the best-case and worst-case outcomes the owner may face on this product if she implements your suggestion?

  Elementary probability theory

Diagnosis tests of medical conditions have several results. The test result can be positive or negative, whether or not a patient has the condition.

  Lower control limit for proportion defective

Critically discuss the lower control limit for a proportion defective if the average daily production is 5000 units and the average fraction defective is .02?

  Mean value assuming a normal distribution

She then uses the mean and standard deviation of these values to estimate the mean value for all parts the operator is making. Construct a 95% confidence interval for the mean value assuming a normal distribution.

  State the normal approximation

If np ≥ 5 and nq ≥ 5, estimate P (more than 5) with n=14 and p=0.3 by using the normal distribution as an approximation to the binomial distribution; if np

  Average forecast method

Compute a 5-month moving average forecast for June through January.

  Solving problem using two-tailed test

Can researcher conclude that humidity has significant effect on eating behaviour? Use two-tailed test with a = 0.05.

  Percentage of students having sat score

The sat scores attainted by the students in nyc are approximately normally distributed with a mean of 500 and a standard deviation of 80. Find the percentage of students who score less than 700.

  Information about control charts

The following data shows the packages gathered for delivery for ten days and the proportion of packages received not delivered to the customers at expected time.

  Decision using the p-value approach

Make a decision using the p-value approach at the given α = 0.05.

  Estimating test statistic for null hypothesis

Estimate a test statistic for null hypothesis H0: μ = 30 against two-sided alternative hypothesis H1 : μ ≠ 30, and by plotting this on its reference distribution.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd