Based on historical data, your manager believes that 32% of the company's orders come from first-time customers. A random sample of 126 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is less than 0.31?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: Suppose you have a population of adult male basketball players and you know their mean height is 190…

A: given data normal distributionμ = 190 cmσ = 7.2 cm

Q: Based on historical data, your manager believes that 39% of the company's orders come from…

Q: According to the Department of Education, 60% of college students enjoy taking Statistics. Suppose…

A: Let X be the number of students who enjoy taking Statistics in a sample of 200. Given n = 200…

Q: Arsenic-based additives in chicken feed have been banned by the European Union but are mixed in the…

A: We want to test the hypothesis

Q: The quality control manager at a computer manufacturing company believes that the mean life of a…

Q: Based on historical data, your manager believes that 30% of the company's orders come from…

A: The provided information are: Population proportion (p) = 0.30 Sample size (n) = 76

Q: en the current Center of Disease Analytics statistics, the probability of having the flu in our area…

A: event A= having flup(having the flu in our area)=0.10p(A)=0.10P(A')=1-0.10=0.90event B=report…

Q: Based on historical data, your manager believes that 41% of the company's orders come from…

A: Hello! As you have posted more than one different questions, we are answering the first question. In…

Q: ased on historical data, your manager believes that 29% of the company's orders come from first-time…

A: It is known that, the mean of the sampling distribution of sampling distribution, p-hat is equal to…

Q: Based on historical data, your manager believes that 29% of the company's orders come from…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: probability that the sample proportion is greater than than 0.17?

A: Given that Based on historical data, your manager believes that 26% of the company's orders come…

Q: Based on historical data, your manager believes that 34% of the company's orders come from…

Q: Based on historical data, your manager believes that 27% of the company's orders come from…

A: Given Information: 27% of the company's orders come from first-time customers. Sample size n=157…

Q: product magazine recently ran a story concerning the increasing prices of digital cameras. The story…

A: Given that, Sample size n=22 It was desired to test to determine if that average price of all…

Q: About 70% of all female heart transplant patients will survive for at least 3 years. Sixty female…

A: Given n=60 Population proportion=0.70 p=0.66

Q: The variance of the scores on a skill evaluation test is 123,201 with a mean of 1528 points. If 343…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: About 73% of all female heart transplant patients will survive for at least 3 years. Ninety female…

Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…

Q: study found that 1.21% of Social Security recipients are too young to vote. If 800 Social Security…

A: Given that A study found that 1.21% of Social Security recipients are too young to vote. P = 0.0121…

Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is…

Q: You are conducting a study to see if the probability of catching the flu this year is significantly…

A: claim:P≠0,37two tailed test for singal proportion teat statitics z=-1.893p value =?

Q: ading pr e probab r interme

A: The information provided in the question are as follows :- Population mean (μ)=500 Population…

Q: A researcher wanted to use a random sample of 20 Spotify Songs to estimate the average Duration (in…

A: The researcher will most likely use the method of point estimation to estimate the population…

Q: In a poisson distributed character, the mean number of events is 6. Find the variance.

Q: The quality control manager at a computer manufacturing company believes that the mean life of a…

A: The quality control manager at a computer manufacturing company believes that the mean life of a…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: given data μ=183000σ=34000n=65here sample size n≥30as per CLT we can say that distribution is…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

Q: Based on historical data, your manager believes that 32% of the company's orders come from first-…

Q: Based on historical data, your manager believes that 25% of the company's orders come from first-…

Q: Based on historical data, your manager believes that 35% of the company's orders come from…

Q: Suppose babies born in a large hospital have a mean weight of 4090 grams, and a variance of 313,600.…

A: Central limit theorem As per the Central limit theorem, the sampling distribution of sample mean…

Q: The quality control manager at a computer manufacturing company believes that the mean life of a…

Q: Based on historical data, your manager believes that 25% of the company's orders come from first-…

A: Solution: Given information: p= 0.25 Population proportion n = 137 Sample size

Q: Find the probability that more than 60 enrolled college

A: Let p be the probability that a student who graduated from high school in a recent year enrolled in…

Q: Suppose babies born in a large hospital have a mean weight of 3685grams, and a variance of 330,625.…

A: Given: μ=3685σ2=330625

Q: A dietician read in a survey that 70.5% of adults in the U.S. do not eat breakfast at least 3 days a…

A: It is need to be tested whether the population proportion of adults in U.S who do not eat breakfast…

Question

100%

Based on historical data, your manager believes that 32% of the company's orders come from first-time customers. A random sample of 126 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is less than 0.31?

Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.

Video Video

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Introduction

VIEW

Step 2: Calculations

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Please see below for the question details. I got 34.32 for the interest, but I also got 19.68 and 32 when I reworked the problem; Please help!!!! Because of the relatively high interest rates, most consumers attempt to pay off their credit card bills promptly. However, this is not always possible. An analysis of the amount of interest paid monthly by a bank's Visa cardholders reveals that the amount is normally distributed with a mean of 27 dollars and a standard deviation of 8 dollars.Please use z-scores with at least 3 decimal places. D. What interest payment is exceeded by only 18% of the bank's Visa cardholders? Interest Payment =
You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly more than 0.71. Thus you are performing a right-tailed test. Your sample data produce the test statistic z = 3.006. Find the p-value accurate to 4 decimal places. p-value =
The mean points obtained in an aptitude examination is 179points with a variance of 225. What is the probability that the mean of the sample would differ from the population mean by less than 2.5 points if 77exams are sampled? Round your answer to four decimal places.
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
The mean weight of an adult is 71 kilograms with a variance of 100. If 181 adults are randomly selected, what is the probability that the sample mean would differ from the population mean by less than 1.2 kilograms? Round your answer to four decimal places.
About 77% of all female heart transplant patients will survive for at least 3 years. Eighty female heart transplant patients are randomly selected. What is the probability that the sample proportion surviving for at least 3 years will be less than 69%? Assume the sampling distribution of sample proportions is a normal distribution. The mean of the sample proportion is equal to the population proportion and the standard deviation is equal to The probability that the sample proportion surviving for at least 3 years will be less than 69% is (Round to four decimal places as needed.)
A team of researchers found that age distributions in a population of 100,000 people was not Normal. However, after they took a large number of simple random samples, each with (N=100), they observed that the sampling distribution of mean tended toward Normality. Really? Why is it possible?
You are part of a trivia team and have tracked your team's performance since you started playing, so you know that your scores are normally distributed with u = 76 and o = 12. Recently, a new person joined the team, and you think the scores have gotten better. The sample data is n = 12, sample mean = 86 Assuming a one tailed test, What is the test statistic?
Based on historical data, your manager believes that 26% of the company's orders come from first-time customers. A random sample of 73 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is greater than than 0.18?Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.Answer = (Enter your answer as a number accurate to 4 decimal places.)
Based on historical data, your manager believes that 31% of the company's orders come from first-time customers. A random sample of 76 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is less than 0.32?Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.Answer =
Statistics Question