a recent year, the Better Business Bureau settled 75% of complaints they received. You have be the Bureau to investigate complaints this year involving computer stores. You plan to select a mple of complaints to estimate the proportion of complaints the Bureau is able to settle. Suppe mple size is 141. What is the probability that the sample proportion will be at most 4 percent i e population proportion? (Enter your answer as a number accurate to 4 decimat places.)

Q: →>> What's a standard score?

A: Introduction  from the above question we have to explain what is a standard score

Q: The SAT math scores of a particular high school in New Jersey are approximately normally…

A: From the empirical rule we know that 95% of the observations falls in (µ-2σ,µ+2σ)  Where µ is the…

Q: For any distribution what is the score that separates the highest 10% from the rest called?

A:

Q: Your Production team provides a lot of 1,000 units for final inspection. The sampling plan is n = -…

A: Given n=79 c=2 p=0.05 Hence X follows binomial distribution with probability 0.05.…

Q: what is the average number of traffic accidents

A: Discrete series means where frequency  of a variable are given but the variable is without class…

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: Step by step answer please

A: Step 1:Determine the given variables Test statistic=t=-2.9554, n=12Hypotheses will be Ho​:ρ=0vs…

Q: Describe how to Convert a Sample Mean to z.

A: z-score denotes the standardized normal score.

Q: A nursing home has 2000 patients. You sample 170 patients. Can you use the infinite standard…

A:

Q: Anna is 3 years old and in the 42nd percentile for height in her age group. What does this mean?…

A: Given: 1)Anna is 3 years old and, 2) In the 42nd percentile for height in her age group. In the…

Q: A consumer group surveyed 146 airplane travelers after a flight and found that 132 of them would fly…

A:

Q: Explain how can we find the corresponding z-score of an area and a percentile.

A:

Q: Imagine that the pregnancy test accurately indicates pregnancy in 97.5% of the people who have it.…

A: The miss rate will be 2.5%

Q: What length of nails is considered to be at the 58th percentile of all nails?

A:

Q: A survey among Harvard students was conducted. It is about their starting position when they sleep…

A: Do the collected data represent a sample or population? Explain your answer.

Q: cognitive psychologist has recently developed a test to measure the emotional intelligence of…

A: Given,mean(μ)=95standard deviation(σ)=10

Q: Compute the standard error of the mean from the following scores; 45, 34, 65, 47, 15, 25 Round your…

A: Given data: scores; 45, 34, 65, 47, 15, 25 To find: standard error of the mean

Q: A newspaper infographic titled "Baby's First Photo Reveal" summarized data from a survey of 1,000…

A: Answer is given by confidence interval.

Q: The Statistics Games are played by a large number of students across the county. Last year, 32% of…

A:

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: Determine whether the sample is biased or unbiased

A: Given a situation, we need to find whether it is biased or unbiased.

Q: oes the size of a sample influence the shape of the distribution?

A: A sample is drawn randomly from a population to draw some inferences about the population. It is not…

Q: How will you know by using the mean and median to determine if a distribution is normally…

A:

Q: Experts claim that 10% of murders are committed by women.  In a random sample of 67 murders, 10 were…

A:

Q: A candy manufacturer has replaced 5.17% of their chocolate bars with a new mystery flavor. Find the…

A: Given: Sample size (n) = 424 p(chocolate bars with a new mystery flavor) = 5.17% = 0.0517

Q: Determine the probability of seeing a Z score of -5.28 or one with a larger absolute value.

A: Z = -5.28 P( Z > -5.28) = 1 – P(Z < -5.28) = 1 – 0 = 1 P(Z < -5.28) = 0 (From Excel…

Q: Calculate normalcdf(106,125,100,15) and give the result. You may check it by finding the z-scores…

A: Normal distribution is also known as Gaussian distribution. It is a type of continuous distribution.…

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: Please answer Question E Below is a sample of 64 responses of a survey of Ward 3 residents in…

A: Given,n=64p=0.69mean(μ)=0.69standard deviation(σ)=p(1-p)nσ=0.69(1-0.69)64σ=0.0578

Q: The first quartile of the data values 45, 48, 31, 48, 50, 30  equals ?

A: Arranging the data into ascending order: 30, 31, 45, 48, 48, 50

Q: A measure of tire wear is the percentage of tire groove lost by the tire since new. A senior JJ…

A: From the provided information,n = 15The data values are as follow:…

Q: If you increase the sample size to 50 from 30, will the standard error of the mean be smaller or…

A: When increasing the sample size to 50 from 30, the standard error of the mean would be smaller…

Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…

A: No, Sample Mean is not the most frequent Occuring Value.   Mean= Sum of Observations / No.of…

Q: Compute the standard error of the mean from the following scores; 45, 34, 65, 14, 15, 25 Round your…

A: Given data: 45, 34, 65, 14, 15, 25 n = 6 To calculate: Compute the standard error of the mean

Q: What are the odds of rolling a 12 on two six-sided dice? % (In percentage, not proportion,…

A: given data  roll two six sided dice.  P9roll sum of 12) = P(roll{6,6} ) = 136 find odds of rolling…

Q: Explain why the sampling distribution of the sample proportion is assumed to be Normal. Show your…

A:

Q: Descriptive statistics is another way of drawing a conclusion which helps us determine whether the…

A: Descriptive statistics: Descriptive statistics is a part of statistics where the data is summarize…