Minutes and a standard deviation

Assignment Help Basic Statistics
Reference no: EM132188388

For the Seashell gas station in your neighbourhood, records indicate that the number of customers arriving in any 5-minute interval averages 0.94 customers, with a standard deviation of 0.97 customers. Sixty-five (65) percent of the customers use a credit card to pay for their purchase. There are 8 pumps at this service station. The time that a car is parked at a pump is normally distributed with a mean of 6.35 minutes and a standard deviation of 2.10 minutes. All the above activities are independent of each other.

a) Ninety-four (94) percent of the customers will be parked for what maximum amount of time (Use 2 decimal places rounded.)?

b) For 12 randomly selected customers, what is the probability that at least 10 of them will pay using a credit card? (Use 4 decimal places rounded.)

c) What is the probability that more than 5 customers will arrive in a 15-minute period?  (Use 4 decimal places rounded.)

d) What is the probability that the average parked time for the next 40 customers is less than 6 minutes? (Use 4 decimal places rounded.)

Reference no: EM132188388

Questions Cloud

Identify the assumptions underlying the classical approaches : Research the various models used in data-driven decision making. Identify the assumptions underlying these classical approaches and describe.
Make a list of the various models presented in your readings : Make a list of the various models presented in your readings and briefly describe each one. This should be written as an annotated listing.
Explain how some data collection might be helpful : Explain how some data collection might be helpful in determining reasons behind negative school situations. Who would be the best stakeholders.
Write the report called for in the mountainside industries : You are a professional business consultant. Write the report called for in the Mountainside Industries case presented on the next page.
Minutes and a standard deviation : The time that a car is parked at a pump is normally distributed with a mean of 6.35 minutes and a standard deviation of 2.10 minutes.
Write a report using a given structure and style : 6MNST001W: Write a report using a given structure and style that would appeal to both academics and business people.
How you would start this incident off correctly : You have been asked by management to secure the laptop computer of an individual who was just dismissed from the company under unfavorable circumstances.
Researcher measures the amount of high fat foods : A researcher measures the amount of high fat foods (in grams) consumed by 6 rat subjects 1 day, 3 days, and 5 days following
How is nadella trying to eliminate some of the bureaucracy : How is Nadella trying to eliminate some of the bureaucracy that has hurt the company's ability to innovate? What business strategies has Nadella implemented.

Reviews

Write a Review

 

Basic Statistics Questions & Answers

  Conclude that pill is effective at promoting weight loss

Can the company conclude that the pill is effective at promoting weight loss? Write the hypotheses and conduct the appropriate hypothesis test.

  The standard deviation speed of the 269 travelers who were

researcher seth b. young measured the walking speed of travelers in san francisco international airport and cleveland

  Questions related to descriptive statistics

For which of the following situations is it appropriate to use a scatter diagram or scatter plot?

  Probability of element of the sample space

Thus rolling the die has 3 possible outcomes, r,b,g. This die is rolled twice. Denote the nine possible outcomes by RR, RB, etc.

  A standard deck of playing cards contains 52 cards divided

question blackjack tablea standard deck of playing cards contains 52 cards divided equally into four suits spades

  Hypothesis for proportion

what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?

  How do you create a histogram in excel when you have the

how do you create a histogram in excel when you have the following data on 40 best paid executivesrank 1-40 ceo name

  What is the probability of having six girls

Marge and Joe have five daughters. They decide to have another baby because they are sure the next one will be a boy (after all, what are the odds of having another girl!)

  Confidence interval or conducting a hypothesis test

If we conduct inference (creating a confidence interval or conducting a hypothesis test) using this data, should we use the formulas for a single proportion

  Calculated the probability of this event.

A gardener grow 20 of these plants and was pleasantly suprised to see 5 blue flowers, 10 red, 2 white and 2 pink. Calculated the probability of this event.

  Russia is well known to be amongst the most adroit nations

Part A: Russia is well known to be amongst the most adroit nations at manipulating public opinion in other countries via its foreign influence operations. A Russian SVR agent has 45 million dollars

  From the data bank select a random sample of 30 individuals

from the data bank select a random sample of 30 individuals.a. use the z test to test the hypothesis for iq that u 100.

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