Based on historical data, your manager believes that 25% of the company's orders come from first-time customers. A random sample of 64 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is greater than than 0.36? 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: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A: For country C n=1024,p hat =0.45 For country D n =1078 ,p hat = 0.41

Q: A random sample of 250 physicians shows that there are 40 of them who make at least $400,000 a year.…

A: We have to find value of test statistics.

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: A random sample by the National Institutes of Health included 2253 men to determine the proportion…

A: Given x=986 n=2253

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.34%. A random sample of 31 of…

A:

Q: Using a random sample of 3800 TV households, a media research company found that 50.3% watched the…

A:

Q: A consumer product magazine recently ran a story concerning the increasing prices of digital…

A: From the provided information, The average price of all digital cameras a couple of years ago was…

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: se technology to calculate the P-value P-value = (Round to three decimal places as needed.)

A: Given that  Sample size n1=1120 , n2=1048 Sample proportion p1^=0.47 , p2^=0.46

Q: Suppose a researcher wants to estimate the population proportion of defective light bulbs. He took a…

A:

Q: Number of drivers involved with accidents during night time. Number of drivers involved with…

A:

Q: A recent random sample of 7 college graduates who found a job reported their GPA and entry level…

A:

Q: Compute the test statistic. Round to two decimal places.

A: Sample size, n=2027 No. of adults who drank diet soda, x=485

Q: The average annual cost (including tuition, room, board, books, and fees) to attend a public college…

A: Given Information : The average cost (including tuition , room , board  books and fees) to attend a…

Q: A newspaper infographic titled "Have a Nice Trip" summarized data from a survey of 1,000 U.S. adults…

A: The objective of the question is to estimate the population proportion of U.S. adults who have…

Q: What is the p-value only?

A: It is given that  In the original solution  The value of the test statistic is z = 3.92. The given…

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: figure to the nght, hich shows the percentages of adults from several countries who favor building…

A: The survey included the random sample 1125 adults from country A, 1003 adults from country B, 1019…

Q: Running heart rate - Jose is a physician who is researching to what extent running affects heart…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

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: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A:

Q: If a probability or 2 place decimal like area is found to be 077 or - 1.09 0.4377, what is the z…

A:

Q: Let p, represent the population proportion for Country C and p2 represent the population proportion…

A: Given that Sample sizes  for country C and country D n1=1024 , n2= 1078 Level of significance =alpha…

Q: dentify the claim and state Ho and H. The claim is "the proportion of adults in Country C who favor…

A: Given that  Sample sizes for Country C and D n1=1024 , n2= 1078 Level of significance =alpha = 0.09

Q: You are doing a research project for a class you are taking. You want to show the value such that​…

A: We will be first finding the descriptive statistics and then calculate the five number summary of…

Q: Reviewing the sample of offspring of "highly irradiated" male radiologists 27 were female and 40…

A: There are 27 females and 40 males.

Q: According to the US Census Bureau in 2021, 23% of children under 18 live with only one parent.…

A: To test whether the percentage of children under 18 living with only one parent in Beacon Hills,…

Q: Professor Zuro surveyed a random sample of 420 statistics students. One of the questions was "Will…

A: GivenTotal no. of statistics students(n)=420No.of students said yes for math class(x)=252

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Accuracy of the test is 86% Inaccuracy of the test = 14% N = Total number of patients = 5000…

Q: (a) Estimate the number of visitors in the sample who actually are looking for the company's website…

A: Not all visitors to a certain company's website are customers or potential customers. In fact, the…

Q: In order to estimate attendance at a music festival, management counts the number of people entering…

A: it is follow A,P with first term a = 2250, d = 2250 , n = 20

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

A:

Q: (Round to four decimal places as needed.) (e) Using the distribution from part (c), would it be…

A:

Q: What’s the formula to turn a Z score to a T score?

A: The  score is the standardized score obtained by using population data or large samples .The  score…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: Does it seem to you that people tend to be absent more on some days of the week than on others?…

A: Weekday f0 fE χ2=f0-fE2fE Monday 29 28 0.036 Tuesday 18 28 3.571 Wednesday 34 28 1.286…

Q: O E Ho: P1 P2 D D. Ho: P1 2 P2 H: P <P2 H, P, SP2 H P, 2P2 ind the standardized test statistic. z=…

A: Given that  Sample sizes n1=1120 , n2=1048 Sample proportion p1^ =0.47 , p2^=0.46

Q: Find the mean for the number of people with the genetic mutation in such groups of 700.

A: Let p be the proportion of the people with the genetic mutation. Given that p = 0.03 Let X denote…

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may…

A: (a) Given: Sample Size for 98% CI , E=0.12 without p^ Confidence level =98% Desired Margin of…

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

A:

Q: A random sample of 300 physicians shows that there are 50 of them who make at least $200,000 a year.…

A: Given,n=300x=50p^=xn=50300=0.1667H0:P=0.20H1:P&lt;0.20

Q: Suppose that insurance companies did a survey. They randomly surveyed 400 drivers and found that 310…

A: Given: Sample size (n) =400 Number of  drivers claimed (x) = 310

Q: A sample of 900 computer chips revealed that 68% of the chips fell in the first 1000 hours of their…

A: Solution is given below

Q: Identify the claim and state H, and Ha The claim is "the proportion of adults in Country B who favor…

A: We have given that the data of four countries A, B, C and D. Here, the claim is two-tailed or…

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.