Find probability customers did not order pastry with drink

Assignment Help Basic Statistics
Reference no: EM13148884

In a busy coffee shop, which is a member of an international chain of coffee shops, 40% of customers order a pastry in addition to their drink. If 20 customers were selected at random during one business day, what is the probability that at least 11 of them did not order a pastry with their drink.

Reference no: EM13148884

Questions Cloud

Probablity that first claim under warranty is tenth car sold : Rrequired service under the warranty. consider a new dealer. what is the probablity that the first claim under this warranty is the tenth car sold?
Operating leverage differ in manufacturing : How does operating leverage differ in manufacturing, service, merchandising, and e-commerce organizations?
What volume would it occupy at an altitude : A meteorological ballon contains 250.0L He at 22 degrees celsius and 740.0mm Hg. If the volume of the ballon can vary according to external conditions
Determining patent amortization : Rocky Corporation has made a commitment to purchase the patent from Granite for $200,000 at the end of five years. Compute Granite's patent amortization for 2009, assuming the straight-line method is used.
Find probability customers did not order pastry with drink : If 20 customers were selected at random during one business day, what is the probability that at least 11 of them did not order a pastry with their drink.
Auditor judgment or of a risk matrix : Use of auditor judgment or of a risk matrix is necessary in revising planned detection risk whenever
What is the ph of this solution : A solution is prepared by dissolving 75.0 g HCl(g) in enough water to make 350.0 L of solution. The ph of this solution is?
How many different phenotypes are possible : Consider a discontinuous trait relating to the management of cholesterol in humans. Assume the trait is controlled by just 2 unlinked genes. For the cholesterol receptor gene 9 different alleles exist. For the cholesterol processing enzyme 5 disti..
Straight-line amortization for patents : Harrel Company acquired a patent on an oil extraction technique on January 1, 2010 for $5,000,000. It was expected to have a ten-year life and no residual value. Harrel uses straight-line amortization for patents. On December 31, 2011, the future ..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Paired t test-cost of living

The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity).

  Elucidate this data use an appropriate statistical test

Elucidate this data use an appropriate statistical test to explain whether the population mean TV "on" time has declined in the past decade.

  Fixing null and alternate hypotheses for single proportion

In terms of  p , the researcher should test which of the following null and alternative hypotheses?

  Variable and collect data for least three different groups

Choose a variable and collect data for a least three different groups(samples). Compare the means of the three groups using the one-way ANOVA technique. Complete the following:

  Find probability that mean salary is greater

Mean of $32,000 and a standad deviation of $3000. If 100 teachers are randomly selected, find the probability that their mean salary is greater than $32,500.

  Hypothesis testing-testing for proportions

Joe thinks that no more than 20% of students in his Statistics class will get an A in the final examination. To prove his claim, he takes a random sample of 35 students and finds to his surprise that 30% of students got an A.

  Finding null hypothesis against alternative that is higher

Test at 5% significance level null hypothesis that population mean is 40 hours against alternative that it is higher.

  Probability that sample contain five women in position

Suppose a random sample of 50 architects and engineers is selected. How likely is it that the random sample contain five or fewer women in these positions.

  Determining the base quarter

Q2 is dummy variable equal to 1 in second quarter and 0 otherwise; and Q3 is final dummy variable equal to 1 in third quarter and 0 otherwise. Determine the Base Quarter?

  Calculate probability for average sat score for students

Suppose that a group of 48 students who took the SAT was chosen. If you wanted to calculate a probability for the average SAT score for these 48 students, what is the standard error.

  Various measures of central tendency

The various measures of central tendency: compare them (how they are similar) and contrast them (how they are different), including specific references to numbers, pictures, and tables derived from the data set.

  Is the study observational or experimental

A cereal manufacturer seeks to test their newest product against a competitor's. A group of 100 children was asked to evaluate each brand, and then to express a preference. To guard against bias, neither the children, nor the technicians serving t..

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