The proportion of individuals insured by a certain company who received at least one traffic ticket during a five-year period is 0.15. If a sample of 150 individuals insured by the company is taken, approximately what z-score would be used to find the probability that the sample proportion will be less than 0.13? O A. -0.68493 O B. -0.68966 O C. -0.68599 O D.-0.66667 O E. -0.68611

Q: Determine the probability that in a sample of 100 the sample proportion is less than .75 if p = 0.80

A: Given, Sample size, n = 100 Population proportion, p =0.8 Z = p^-pp1-pn

Q: The coach of a running team thinks that 45% of athletes can run a mile in under 7 minutes. A simple…

A: Given problem Given that   The coach of a running team thinks that 45% of athletes can run a mile…

Q: ased on historical data, your manager believes that 37% of the company's orders come from first-time…

A:

Q: The average number of students per day in any given classroom at Lakeland High School is about 22.…

A: Given that The average number of students per day in any given classroom at Lakeland High School is…

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: From the given data, Let X represent the number of calls received by an office on morning…

Q: The sizes of car loans in North Carolina have mean $8,452 and a standard deviation $467. The…

A: The mean is 8452 and the standard deviation is 467.

Q: The tread life of tires mounted on light-duty trucks follows the normal probability distribution…

A:

Q: The probability that a person in the United States has type B blood is 10%. If 3 people are randomly…

A: Let X be a random variable that represents the person in the united states who has type B blood. The…

Q: The table summarizes results from 979 pedestrian deaths that were caused by automobile accidents.…

A: Where E denotes the event and S denotes the sample space.

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: In a region the energy consumption for a family per month averages 1145 kWh and one standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Suppose that the editor of a new textbook was hoping that the book would have mean word length of…

A: Population mean word length  = 6.5 letters. Sample size , n = 20. The probability that the mean word…

Q: Based on historical data, your manager believes that 37% of the company's orders come from…

A:

Q: A courier service company wishes to estimate the proportion of people in various states that will…

A: number of samples, n = 330 true proportion, p = 0.05 Let, p^ be the sample proportion.  Hence p^…

Q: The table summarizes results from 983 pedestrian deaths that were caused by automobile accidents.…

A: Total number of pedestrian who's no  intoxicated =70+573=643 Total number of accident=983 We want to…

Q: n insurance agent knows that 18% of deer-car collision claims are filed in November. Consider a…

A:

Q: Suppose 57% of the population has a college degree. If a random sample of size 770 is selected,…

A: the pdf of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: What is the probability of selecting a sample with the proportion of females being 0.56 or greater?

A: here p =  proportion of female in US =  0.51  n = 500

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

A: Given that  p=0.34(34%) n=78

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.45 %. A random sample of 32 of…

A: The objective of this question is to find the probability that the mean childhood asthma prevalence…

Q: he proportion of eligible voters in the next election who will vote for the incumbent is assumed to…

A: Given that The proportion of eligible voters in the next election who will vote for the incumbent is…

Q: The Food Marketing Institute shows that 17% of households spend more than $100 per week on…

A: Given N=800 P=0.17

Q: Consider the data in the table shown which represents the marital status of males and females 18…

A: The question is about probability.Given :

Q: The average number of students per day in any given classroom at Lakeland High School is about 22.…

A: Given,The average number of students per day in any given classroom is 22.A random variable…

Q: Suppose a large consignment of cell phones contained 11% defectives. If a sample of size 271 is…

A:

Q: M = 75.85 and SD = 6.38, what is the probability of a score falling below a raw score of 63.00?

A: Given that  Mean = M = 75.85 , Standard deviation = SD = 6.38 Raw score = X = 63.00

Q: Based on historical data, your manager believes that 40% of the company's orders come from…

A:

Q: A population proportion is 0.5. Suppose a random sample of 658 items is sampled randomly from this…

A: Given that : Population proportion =0.5 Random Sample =658

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: Suppose 50 % of politicians are lawyers. If a random sample of size 518 is selected, what is the…

A: Consider that p is proportion of all politicians.

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

A: Given that, n=188,p=0.27 The mean of the sampling distribution is, The Standard error of the…

Q: A government sample survey plans to measure the total cholesterol level of an SRS of men aged 20-34.…

A: Note: As it is not logical that “the probability that x falls within + or -2 milligrams per…