ased on historical data, your manager believes that 29% of the company's orders come from first-time customers. A random sample of 158 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is less than 0.28? Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.

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 blue catfish (Ictalurus Furcatus) is the largest species of North Amercian catfish. The current…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

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: 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: Which number best approximates risk associated with tea drinking in men?

A: Tea drinking cancer patients in men = 140Total cancer patients in male = 200Tea drinking other…

Q: One thousand (1000) elderly males and 2500 elderly females were randomly selected for a dementia…

A: Introduction: It is given that among a sample of 1000 elderly males, 210 elderly males are diagnosed…

Q: The table summarizes results from 987 pedestrian deaths that were caused by autornobile accidents.…

A:

Q: An unfair coin is tossed 14 times.  This coin is known to come up heads 60% of the time and tails…

A: Here, n = 14, p = 0.40, q = 0.60.

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

A:

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

A: Given that n =193,P=0.13 Find P ( p^ < 0.08 ) = ?

Q: The standard deviation of the lifespan of a certain brand of LED light bulbs Is 20 months. The…

A: We have given that. 1) X~N( μ , ?^2 )   μ =147 , ? =20 , n=70   Z-score =( x - μ )/?

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: 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: The number of power outages at a retirement center has a mean of “a+1” outages per year. What is the…

A: The objective of this question is to find the probability of exactly 3 outages in a year and the…

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

A: Given that  Population proportion p=0.14 Sample size n =66

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

A:

Q: According to a 2009 Reader's Digest article, people throw away about 7% of what they buy at the…

A: Given: Population proportion (p) = 7%  = 0.07    Sample proportion                  Sample size (n)…

Q: The amount of time a customer spends in a convenience store can be modeled by an exponential…

A:

Q: A hotel manager calculates that 12% of the hotel rooms are booked. If the manager is right, what…

A: From the given information,P be the probability that hotel rooms are booked = 0.12.Sample size (n)…

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: At the Fredericton High School it is estimated that at most 25% of the students ride bikes to…

A: Let, p = proportion of students who ride bikes to school

Q: You plan to conduct a survey to estimate the percentage of adults who have had chickenpox. Find the…

A: It is needed to find the number of people who must be surveyed if one wants to be 93% confident that…

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.18%. A random sample of 33 of…

A: The sampling distribution of the mean childhood asthma prevalence  will follow normal distribution…

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

A:

Q: Suppose 56% of the doctors in a hospital are surgeons. If a sample of 417 doctors is selected,…

A: given:p = population proportion p = 56% = 56/100 = 0.56 n = sample size n = 417 In order to find the…

Q: In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the…

A: Given that, Probability = 0.57 Sample size, n = 6

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: 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: Find the sample size required to estimate the percentage of statistics students who take their…

A:

Q: The table summarizes results from 988 pedestrian deaths that were caused by automobile accidents.…

A: Total (231+611)= 842 cases involved drivers that were not intoxicated.  We can pick two cases from…

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

A:

Q: The probability that a z-score will be between -1.4 and -1.04 is?

A: The objective of this question is to find the probability that a z-score will fall between -1.4 and…

Q: A film distribution manager calculates that 4% of the films released are flops.If the manager is…

A: The given data: Probability that the films released are flops, p = 0.04 Number of samples, n= 747…

Q: The true proportion of voters in favor of a candidate is unknown. A random sample of 329 voters…

A: The point estimate of true population proportion of the voters who favor the candidate would be 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: Suppose the true proportion of voters in the county who support a restaurant tax is 0.37. Consider…

A:

Q: Solve last part

A: The hypothesis is an assumption that is being tested to draw an appropriate conclusion about the…

Q: In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the…

A: From the provided information, Guests who visit Yosemite National Park like to stay at an overnight…

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.