Based on historical data, your manager believes that 30% 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 0.27?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.)

Q: Find the z-score that cuts off 70% in the body on the right.

A:

Q: According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the…

A:

Q: According to a 2009 Reader's Digest article, people throw away approximately 11% of what they buy at…

A: “Since you have posted multiple  question , we will solve first question for you. To get the…

Q: The use of the Internet is constantly growing. How many randomly selected adults must be surveyed to…

A: Solution

Q: Suppose 4 percent of the children in the US are thought to be near the juvenile diabetes threshold.…

A:

Q: Nationally, 80 percent of adults own an thermometer. You are interested in whether the same…

A: We have given that  Sample size n = 100 Sample proportion p^=75%=0.75 Population proportion…

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 457 green beans…

A: Given,no.of green beans=457no.of yellow beans=164Total no.of beans=621

Q: A random sample of 2000 driver's license applications found that 17% reported their eye color as…

A:

Q: You take a random sample of size 25 students and find the 5 who understand this lecture. With 99%…

A:

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 449 green beans…

A:

Q: A study shows that 93% of people prefer milk chocolate over dark chocolate. How large of a random…

A:

Q: In a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA…

A: Central limit theorem: For a simple random sample of size n drawn from a population, the sampling…

Q: recent study reported that 12% of people toss away about half of what they buy at the grocery store.…

A: From the given information we conduct Z test for proportion.

Q: According to a 2009 Reader's Digest article, people throw away approximately 12% of what they buy at…

A: Given Data population proportion,p = 0.12 sample size n = 171

Q: A magazine reported that 6 percent of all drivers talk on their cell phone while driv If 300 drivers…

A: Given data, p=6% =0.06 n=300 P(0.04<X<0.07)=?

Q: A rare birth defect occurs in approximately 0.5% of all cases in males. If we sample all the males…

A: Given information: The total number of males born in 2016 in a specific region is N = 200,000. It is…

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 455 green beans…

A: Solution-; Given: Number of green beans =455           Number of yellow beans =141           Total…

Q: In a survey of 400 items in a production line, it was discovered that 10% are defective. What is the…

A: Given the survey of 400 items in a production line.The percentage of defectives is 10%,Let n = 400…

Q: You flip a fair coin 16 times in the air. What is the relative frequency of this coin landing on…

A: One method for making information clear and easy to understand is to structure it in a frequency…

Q: We are asked to find the values that separate the middle 60% of the population from the top and…

A: In a normal distribution, the z-score is a measure of how many standard deviations an element is…

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Given data, p=14% =0.14 n=144 P(p<0.2)=?

Q: know the answer is 0.0166. I am struggling to remember the steps to get the answer. The image is to…

A:

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: The scores on a statewide chemistry exam were normally distributed with ?=73.08 and ?=6. Gabriela…

A: Given data isMean(μ)=73.08standard deviation(σ)=6

Q: A recent study indicated that 43% of the 100 women over age 55 in the study were widows. Round up…

A:

Q: A claim is made that 85% of college students own a smartphone. Natalie believes that a larger…

A: Let p be the population proportion  p=0.85, x= 135, n=150  p^=x/n

Q: If the probability that a randomly chosen college student takes statistics is 0.34, then what is the…

A: The probability that a randomly chosen college student takes statistics is 0.34. The probability…

Q: a fast food center wants to estimate the proportion of people in its city that will purchase its…

A:

Q: A healthcare agency reported that 51% of people who had coronary bypass surgery in 2008 were over…

A:

Q: Goofy's fast food center wishes to estimate the proportion of people in its city that will purchase…

A: Consider that p is population proportion of people in its city that will purchase its products.

Q: John works as a weld inspector in a shipyard. Because he keeps track of good and poor welds, he…

A: It is given that  p = 5% = 0.05 Sample size, n = 300 Z = (p^ - p)/√(p(1-p)/n) 0.012583057392118

Q: According to a 2009 Reader's Digest article, people throw away about 10% of what they buy at the…

A: Given information : Population proportion = p= 10% = 0.10 q = 1 - p    = 1 - 0.10 = 0.90 Sample size…

Q: According to Reader's Digest, 50% of primary care doctors think their patients receive unnecessary…

A: Given: 50% of primary care doctors think their parents receive unnecessary medical care. That is,…

Q: In 2013, 46% of high school students tried a tobacco product. From a survey of 500 randomly…

A: Given : Population proportion =46% n=500

Q: Find the probability for the sample proportion of men who experience sleep apnea to be le

A: Suppose that 20% of the population of men experience sleep apnea. A random sample of n = 64 men is…

Q: An ectopic pregnancy is twice as likely to develop when the pregnant woman is smoker compared to…

A: Consider EP represents the event that the women have an ectopic pregnancy.Consider S represents the…

Q: The scientist claims that 8% of viruses are airborne if the scientist is accurate what is the…

A:

Q: In the 1980's it was believed that congenital abnormalities affected about 5.4% of the nation's…

A: Step 1: Null and Alternative Hypothesis Claim : Some people believe that an increase in the…

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Given: Sample size (n) = 135 Population proportion (p) = 0.14

Q: How many households must you survey if you want to be 94% confident that your sample percentage has…

A: Margin of error  = 0.03 Confidence level =  94%

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.