User Account

All Pages

Use normal approximation to binomial to find the probability

Assignment Help Basic Statistics
Reference no: EM13245194

1) Use the normal approximation to the binomial to find the probability of X = 20 when n = 30 and p = 0.5.

2) Of all 3 - 5 year old children, 71% are enrolled in school. If a sample of 400 children are randomly selected, what is the probability that at least 300 will be enrolled in school.

3) 5% of theater patrons do not show up for the performance. If the theater has 120 seats, what is the probability that 6 or more will not show up to a particular performance.

Reference no: EM13245194

Questions Cloud

Explain the formation of ammonia from nitrogen gas : Use bond energy values to estimate the reaction enthalpy for the formation of ammonia from nitrogen gas and hydrogen gas. Note that N2 contains a triple bond. You will need structural formula.
Different classes of people that you find in north-south : Imagine you are touring the United States in 1836. You compose an essay describing what you have seen. Based upon this trip, how would you compare and contrast the economies, societies, and cultures of the northern and southern states, east of the Mi..
What price should be set for each group : a) If the market cannot be segmented, what is the uniform monopoly price b) If the night club can charge according to whether or not the customer is a student but is limited to linear pricing
Find out the photon energy and the wavelength : In some cases a Br-Br bond can be broken by the absorption of photons of light energy. Br-Br bond energy is 192 kj/mol determine the photon energy and the wavelength (in nanometers) associated with breaking this bond.
Use normal approximation to binomial to find the probability : Of all 3 - 5 year old children, 71% are enrolled in school. If a sample of 400 children are randomly selected, what is the probability that at least 300 will be enrolled in school.
Which country has an absolute advantage of producing wheat : Labor hours required to produce one unit of cloth in the united kingdom is 6. The labor hours required to produce one unit of cloth in the united states is 5. Which country has an absolute advantage of producint wheat In producing cloth
Explain what is the ph halfway to the equivalence point : What is the pH halfway to the equivalence point for the titration of 0.20 M CH3NH2 with 0.20 M HCl? (Kb of CH3NH2 = 4.4 x 10-4)
What is the opportunity cost of producing a unit of wheat : The labor hours required to produce one unit of wheat in the United kingdom 2. The labor of producing one unit of wheat in the United states is 1. What is the opportunity cost of producing a unit of wheat in the United kingdom
Find the limits for the middle : Find the probability that the age of a randomly selected CEO will satisfy each condition - The average teacher's salary in timbucktoo is $29,863. Assume a normal distribution with a standard deviation of $5000.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Given the linear correlation coefficient r and the sample

Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation

  Find z score for the area under standard normal curve

Find a z score for which the area under the standard normal curve from -z to z is 50%. (b) Find the range of scores which will be assigned a grade of C.

  Confidence intervals-lunches

In a certain countrywide school district, a survey of 350 students showed that 28% carried their lunches to school. Find the 95% confidence interval of the true proportion of students who carried their lunches to school.

  Probability on the discrete distribution

Based on this information, by what factor does the risk of having an accident increase due to driving while intoxicated?

  Create a contingency table for data of preference for pepsi

Create a contingency table for this data: In a "taste test" fourteen men showed a preference for Coke an the same number showed a preference for Pepsi.

  Why is the normality assumption not a problem

Construct a 95% confidence intervalfor the population proportion of positive drug tests. Why is the normality assumption not a problem despite the very small value of p?

  Find the expected frequency to test the claim

Find the expected frequency to test the claim that walking and low, moderate, and high blood pressure are not related. Round to the nearest tenth if necessary.

  Standard deviation of the distribution

In a group of six professors selected at random, what is the expected number of extroverts? What is the standard deviation of the distribution?

  Perform significant test to assess mortality from cirrhosis

Perform a significant test to assess whether there is an association between mortality from cirrhosis of the liver and duration of employment in the group hired after 1945. Report a p-value.

  Claim-two proportion z test

If statistically significant, do you think the difference is large enough to be important?

  Adopting a bonus system to increases production

Management of a company is considering adopting a bonus system to increases production. One suggestion is to pay a bonus on the highest 5 percent of production based on past experience.

  Compute the expected value of perfect information

Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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