5. You have a sample with a mean of 46 and a standard deviation of 8. What is the probability of randomly selecting: a) a score above 64? b) a score between 40 and 50? c) a score below 32?

Q: What is the probability of selecting a random sample of n= 36 students with an average age greater…

A: Concept: According to the central limit theorem, if the sample size is sufficiently large, i.e., n…

Q: 2. We are given that the average height for women in America is 64 inches tall with a standard…

A: We have given that the random variable X i.e. height of the women. The Mean μ = 64 inches, standard…

Q: 4. A researcher knows that the average height of Filipino women is 1.53 m. A random sample of 26…

A: For the given data Perform t test for one sample mean

Q: our sample consists of 43 subjects, with a mean of 36.1 nd standard deviation of 2.56.

A: Given information: μ=36.82n=43x¯=36.1s=2.56

Q: Assume that 29% of all children in urban schools fail to graduate from high school. An SRS of 400…

A: 1. b) The mean of the sampling distribution of p^ is, μp^=p=0.29 Thus, the mean of the sampling…

Q: what is the z-score of a value of 32 of a set A, given that the set has a mean of 24 and a standard…

A: The answer is found in step-2

Q: what is the probability that the sample mean will be between 350,000 and 365,000?

A: Given that Sample size n = 100 Population mean = 345800 Population SD = 90000

Q: 2. The weight of 2,000 students are normally distributed with the mean of 46kg and standard…

A: First we find the required probabilities for getting the answers for given problems, (a) (b) (c)…

Q: Suppose the country club bills based on a sample of 4 members are: 410, 1,089, 637, 961. What is the…

A: Given information- We have given the country club bills based on a sample of 4 members. 410, 1,089,…

Q: suppose that vehicle speeds at an interstate location have a normal distrubution with the mean equal…

A: Solution-: Given: μ=112km/h,σ=12.9km/h We want to find, (a) The z score for a speed of 103 km/h ?…

Q: 10. An education finance corporation claims that the average credit card debts carried by…

A:

Q: 6. Suppose the mean weight of school children's book bags is 17.5 pounds, with standard deviation…

A: Solution :-

Q: a. How many 18 to 29 year olds must be sampled to find at least 50 who invest in the stock market?…

A: Part a: For 18-29 years old the percent of individuals involved in stock market is 31%. Thus, X…

Q: 3. A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a…

A: Formula : Z =(X - μ)/σ

Q: 2. Given a standard deviation of 3.7, what is the mean if1 0% of the population has a distribution…

A: We have given that,  Let x be the random variable from normal distribution with standard deviation…

Q: Suppose it is known that 80% people own a cellphone. If a random sample of 100 people were surveyed,…

A:

Q: Since a population has a mean of 73.5 and a standard deviation of 2.5, what is the probability that…

A: We have to find given probability.....

Q: 10. Waist circumference for adult men in the U.S. are normally distributed with mean 40.1 inches and…

A:

Q: b) Suppose that in a random sample of 600 customers, 270 express satisfaction with the dealership.…

A: sample of 600 customer

Q: The number of pets owned by twelve randomly chosen students are  0 0 1 3 14 1 2 2 0 1 2 1 If each…

A: Given data sets are 0 0 1 3 14 1 2 2 0 1 2 1

Q: The number of shots on goal in an amateur hockey league's games is normally distributed, with a mean…

A: Let us assume X= The number of shots on goal in an amateur hockey league's games Given that X…

Q: 2. The amount of time spent by North American adults watching television per day is normally…

A: Given data The amount of time spent by North American adults watching television per day is normally…

Q: 7. The City Transport and Traffic Management Office (CTTMO) study of 8000 vehicles that passed the…

A: Given: The City Transport and Traffic Management Office (CTTMO) study of 8000 vehicles that passed…

Q: 2. How is the sample size related to the deviation?

A: We have to define how sample size is related standard deviation

Q: Use the CLT again to determine the probability that the mean taxable wages in James' sample of 50…

A: It is given that mean is 28.29 and the standard deviation is 33.493.

Q: 4. The average public elementary school has 468 students with a standard deviation of 87. If a…

A: Here use given step by step solution and normal distribution of sample mean

Q: Suppose a population has three values 13, 17 and 24. What is the standard deviation of the sampling…

A: Given, Population values are 13, 17 and 24. Samples are drawn without replacement.

Q: 4.) In order to determine the effect of music on the speed of students in answering exams, an…

A:

Q: 2. Assume that the length of human forearms is symmetric, unimodal and bell-shaped with mean 12in.…

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

Q: Suppose that the sampling distribution of size 10 has a mean of 30 and standard deviation of 3.…

A:

Q: 10 The distribution of the weights of those rowing in a very large regatta may be taken to be normal…

A: Let X be the weights of rowers, that follows normal distribution with µ=80 kg and σ = 8 kg. Let Y =…

Q: 2. The average number of pages in a novel is 326 with a standard deviation of 24 pages. If a sample…

A: For a random variable X, with mean μ and standard deviation σ , the average of X =1n∑xii=1n =X¯…

Q: According to the Niesien Company the mean number of TV sets in a US household in 2013 was 2.24…

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: A Nielsen Company report states that the mean number of TV sets in a U.S. household is 2.24. Assume…

A: Obtain the probability that the number of TV sets is greater than 2 in that household. The…

Q: 4. The results of a state-wide examination of the reading skills of sixth-grade students were…

A: For X, a random variable, the Z-score is, Z=X-μσwhere, μ=population mean             σ=population…

Q: 2.Suppose that 60% of middle school students in San Diego wear braces. A random sample of 250 San…

A: Given Information : Suppose that 60% of middle school students in San Diego wear braces. A random…

Q: 2. According to the International Graduation Association, on average, high school girls in Canada…

A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY PLZ REPOST FOR REMAINING

Q: 1. There are 95% of students at school weigh between 62 kg and 90 kg at Westchester Community…

A: 95% of the data lies between X¯-1.96×σ and X¯+1.96×σ hence we get, X¯-1.96×σ = 62 X¯+1.96×σ = 90…

Q: 23. An auto manufacturer claims that its cars go from 0 to 60 in 5.9 seconds or less. A sample of 15…

A: Since you have posted multiple questions , we will solve first question for you. To get the…

Q: The number of shots on goal in an amateur hockey league's games is normally distributed, with a mean…

A: Let X=the number of shots X follows a normal distribution with mean=56.3 and standard deviation= 8.1…

Q: According to government data, the probability that a woman between the ages of 25 and 29 was never…

A: Let X be the random variable of number of women that never married Given n=10 p=0.4 X ~ Binomial(10,…

Q: 8. Calculate the probability that the price lies within 1.5 standard deviations of the mean.

A: Let X be the price. We have to find the probability that the price lies within 1.5 standard…

Q: 3- At a computer manufacturing company, the actual size of a particular type of computer chips is…

A: We have to find required sample mean.

Q: Suppose a set of 100 random numbers is normally distributed, with a mean of 50 and standard…

A: suppose a set of random numbers is normally distributed, with a mean of 50 and standard deviation 2.…

Q: 2. An article suggests a normal distribution with mean 130.8 oz and standard deviation 3.05 oz for…

A: (a)   Obtain the probability that a single jar contains less than the stated contents.   The…

Q: 4. A normally distributed set of 1,010 values has a mean of 103 and a standard deviation of 12.…

A:

Q: 4. The mean performance score on a physical fitness test for Division I student-athletes is 947 with…

A: The random variable performance score follows normal distribution. We have to find the probability…

Q: Suppose that 8% of all males suffer some form of color blindness. 350 men are sampled. a. What is…

A:

Q: 3. If the probability of a defective bolt is 0.1, find (a) the mean, (b) the standard deviation, for…

A: