Based on historical data, your manager believes that 33% of the company's orders come from first-tin.? customers. A random sample of 198 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is between 0.2 and 0.49?

Q: In a Gallup Survey, 90% of the people interviewed were unaware that maintaining a healthy weight…

A: Given Information: 90% of the people interviewed were unaware that maintaining a healthy weight…

Q: From experience, an airline knows that only 73% of the passengers booked on a flight from New York…

A: There is only two possibilities either ticket booked(success) or not booked ( failure) If r.v is X ,…

Q: A random sample of 100 blue-collar employees at a large corporation are surveyed to assess their…

A: Given: Sample size (n) = 100 Probability of success (p) = 0.60 Let X ~ Bin (100, 0.60)

Q: According to the 2009 current Population Survey conducted by the U.S. Census Bureau, 40% of the U.S.…

A: In question, Given that according to the 2009 current Population Survey conducted by the U.S. Census…

Q: Although studies continue to show smoking leads to significant health problems, 20% ofadults in the…

A: According to the provided information, 20% of adults in the United States smoke. Consider a group of…

Q: otel manager assumes that 13% of the hotel rooms are booked.   If the manager is correct, what is…

A: Given: Population proportion (p) = 0.13 Sample size (n) = 423 The distribution of sample proportion…

Q: The approach, to develop the binomial probability distribution, begins with the:

A: For binomial distribution, each trial has to be independent of each other and each trial must have…

Q: Based on historical data, your manager believes that 44% of the company's orders come from…

A: Obtain the probability that the sample proportion is between 0.22 and 0.33.   The probability that…

Q: A market research firm conducts telephone surveys with a 40% historical response rate.What is the…

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

Q: In one study of calls to 911 in Los Angeles, it was found that 85% of the calls were not…

A: Solution: From the given information, the proportion of the calls were not emergencies is p=0.85 and…

Q: It is estimated that 75%of all young adults between the ages of 18-35 do not have a landline in…

A: Given Information- p = 0.75 q = 1-0.75 =0.25 n = 100 Here we use Binomial distribution, Binomial…

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

A: Given p=0.32n=89 Let the sample proportion be denoted by p^

Q: Based on historical data, your manager believes that 33% of the company's orders come from…

A: Given p = 0.33, n = 219 Mean, μ =np = 219 x 0.33 = 72.27 Standard deviation, σ= npq = 219×0.33×0.67…

Q: Suppose it is reported that 79 % of people subscribe to a cable or satellite television service. You…

A:

Q: Suppose the prevalence of alcoholism among college students is 20% among those living in group…

A: It is given that the prevalence of alcoholism(A) among college students is 20% among those living in…

Q: What is the probability that the sample proportion exceeds 0.12?

A: Given According to a 2009 Reader's Digest article. First, we need to find the standard deviation for…

Q: 5. The Gallup Poll once asked an SRS of 1540 adults, "Do you happen to jog?" Suppose 15% of all…

A: We have to find probably using z table

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

A: Solution: It is given that people throw away about 14% of what they buy at the grocery store. So,…

Q: C. What is the probability that a randomly selected person from this study tried to quit smoking…

A: Here AS PER GIVEN NOTE I HAVE CALCULATED PART C

Q: Because of the current economic condition, a firm reports that 30 percent of its accounts receivable…

A: Given,n=5p=0.3X=no.of accounts are overdueX~Binomial (n=5 , p=0.3)P(X=x)=cxn pxqn-x  ; x=0,1,2,....n…

Q: A DVD rental store wants to know what proportion of its customers are under age 21. A simple random…

A: Given, p = 0.60 n = 600 Let p^ be the sample proportion

Q: Based on a study by Dr. P. Sorita Sona at Indiana University, about 35% of the population has blue…

A: Let the random variable X denote the no. of individuals has blue eyes and it follows binomial…

Q: Suppose a large shipment of microwave ovens contained 14 % defectives. If a sample of size 278 is…

A:

Q: According to IDC, 70% of smartphones in the world use Google’s Android operating system in the…

A: Given: 70% of smartphones in the world use Google’s Android operating system in the fourth quarter…

Q: Suppose a large consignment of cell phones contained 19% defectives. If a sample of size 399 is…

A: Given Population proportion is 19% sample size is 399

Q: What is the probability that the average attendance at the games in a sample of 50 will be above…

A:

Q: Suppose 48 % of the registered voters in a country are Republican. If a sample of 597 voters is…

A: The mean of sampling distribution of proportion is obtained below: From the given information, the…

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

A: Let X be the proportion of things throw away that people bought at the store. The population…

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: On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on…

A: Given,             X      25    50    75   100  Total   P(x)    0.27   0.44   0.25   0.08…

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

A: From the provided information, Mean (p) = 0.11 Sample size (n) = 90 The standard deviation can be…

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

A: Concept of sampling distribution of sample proportion: Let a particular characteristic of a…

Q: 3. Suppose that the average outstanding credit card balance for your professionals is 11,200 with a…

A: Given: Mean value is, μ=11200. Standard deviation is, σ=2600. Number of professionals selected in…

Q: Recall the use of data from the National Health Survey to estimate behaviors such as alcohol…

A:

Q: If the population proportion is 0.90 and a sample of size 64 is taken, what is the probability that…

A:

Q: 13 percent of the patients in a study reported previous episodes of a stroke. Use 13 percent as the…

A: The mean and the standard deviation of the sampling distribution of the sample proportion is,

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

A:

Q: The chance that a U.S. police chief believes raising the cost of parking tickets "significantly…

A: We have given that  n=9 , p=1/4=0.25  , q=1-0.25=0.75 X~Binomial(n=9,p=0.25) Find P(X=5)

Q: In an experiment consisting of three flips of a fair coin, what is the probability that the first…

A: As per given by the question, there are three coins are flipped. then find the probability that the…

Q: In a survey of 2500 adults 18 year old and older conducted in 2019 adults 18 years old and older,…

A: The frequency distribution is given by:

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

A:

Q: a. What is the probability that it would take more than 4 minutes to reach the accident? b. What is…

A: Given: The function of reach of fire service response team is, fY=y=115y+1          0≤y≤319y-3…

Q: In a large on-the-job training program, half of the participants are female and half are male. In a…

A:

Q: Based on historical data, your manager believes that 31% of the company's orders come from…

A: The provided information are: Population proportion (p) = 0.31 Sample size (n) = 119 Consider, the…

Q: In a survey of 1000 social-media account holders aged 18 years and older conducted by a certain…

A: Total numbers of account holders: n=1000 Probability that they have one or two account is: p=0.61…

Q: (b) What proportion of the children were 35 months or older, but less than 45 months of age when…

A: Rearrange the data set and create a frequency table from the above data given.

Q: b) Andrew Whittaker, computer center manager, reports that his computer system experienced 25…

A: Solution

Q: (a) For the next shaft, what is the probability that its diameter is between 8.5 mm and 13.0 mm? (b)…

A:

Q: By some estimates, twenty-percent (20%) of Americans have no health insurance. Sample of 15…

A: