Handy Glass Pty has found that 25% of customers in its client base are located in Gauteng. A sample of 130 customers is randomly selected. Assuming normal distribution: Q.2.1.2 What is the probability that more than 24.50% of the customers in the sample are situated in Gauteng? Interpret your answer.

Q: Given independent random variables, x and y, with means (100, -50) and standard deviations (16, 25)…

A: Given that, Let X and Y are independent random variables. Let Z=X - 2Y The expected value of Z is,…

Q: The random variable X, representing the number of errors per 100 lines of software code, has the…

A:

Q: If the random variable Z has a standard normal distribution, then P(1.17≤Z≤2.26) is?

A: Given:   The random variable Z has a standard normal distribution.

Q: 2. Find the following probabilities using the STANDARD NORMAL distribution (mean=0, stan. dev.=1)…

A:

Q: For a normal distribution with M = 80 and SD = 12: (a) what is the probability of randomly…

A:

Q: what is the probability that x<70?

A: Let , X→N(μ=100 , σ=10) Our aim is to find the P(X&lt;70)

Q: A. Using this data, calculate the expected speed of each processor, and determine which of the two…

A: Given is the speed of two CPU's in a bar graph. Let X is the given class intervals and f as their…

Q: 1. p(X > 227) 2. p(X > 212) 3. p(X < 230)

A: Let , X→N(μ=225 , σ=15) Our aim to find the following :  1. P(X &gt; 227) 2. P(X &gt; 212) 3. P(X…

Q: The number of commercials (X) shown during a single hour of children’s television programming is…

A: The sample size is 24. The probability distribution is provided as;

Q: The number of adults living in homes on a randomly selected city block is described by the following…

A:

Q: Read the z statistic from the normal distribution table and choose the correct answer. For a…

A: From the provided information, Level of significance (α) = 0.0048 The test is lower tail.

Q: A credit card company monitors cardholder transaction habits to detect any unusualactivity Suppase…

A:

Q: For a standard normal distribution, determine the following probabilities. a) P(D1.43) b) P(D-0.40)…

A: a)P(z&gt;1.43)=?

Q: Given a normal distribution with µ = 50 and o = 5, if you select a sample of n = 100, what is the…

A: According to bartleby policy I have solved first three subparts of this question. I hope it will…

Q: Given a normal distribution with μ=101 and σ=25​, and given you select a sample of n=25​, What is…

A:

Q: Given a normal distribution with µ = 50 and o = 5, if you select a sample of n = 100, what is the…

A:

Q: In a pizza takeout restaurant, the following probability distribution was obtained for the number of…

A:

Q: In a normal distribution with a u = 50 and o = 10, which of the following scores would have the…

A: The mean is 50 and the standard deviation is 10.

Q: Consider a random variable, z, that has a standardized normal distribution. Determine the following…

A: We have given that,  Z from the standard normal distribution with mean (μ) = 0 and standard…

Q: The following distribution shows the number of students enrolled in five English courses at a local…

A: The distribution shows the number of students enrolled in five English courses.

Q: Automotive engineers have found that the gas mileage in highway driving of a certain sports utility…

A:

Q: Calculate the following probabilities using the Poisson Distribution Round to 3 decimal places a.…

A: We have to find the probabilities using the poisson distribution for given mean values.

Q: Find the following probability by using Standard Normal distribution table: 1. P(-1.27 -2.64) 3.…

A: The given probabilities are 1. P-1.27&lt;Z≤0 2. PZ&gt;-2.64 3. PZ≤0.96 4. P-2.31&lt;Z≤0.82 5.…

Q: Read the z statistic from the normal distribution table and choose the correct answer. For a…

A: Given that, One-tailed test (Lower tail) α = 0.0048

Q: Given the probability distribution of the random variable X below, compute for the variance and…

A: Given :

Q: The Sarasota Police department collected data on the number of car accidents ( X ) that occur each…

A: ∈X=ΣX. PX

Q: A random sample of 16 undergraduate students receiving student loans was obtained, and the amounts…

A: A random sample of 16 undergraduate students receiving student loans was obtained, and the amounts…

Q: b. Calculate the standard deviation of the sampling distribution of p. 10. 6.4.2 For this scenario,…

A: "Since you have posted a question with multiple subparts, we will solve the first 3 sub-parts for…

Q: Given the following data for an imaginary superhero universe: Flying Telepathy Super Strength Female…

A:

Q: In the following distribution table, the probability of the random variable Y taking the values…

A:

Q: Read the z statistic from the normal distribution table. For a one-tailed test (lower tail) using a…

A: Given Information: alpha = 0.0436  '

Q: Given a normal distribution with u = 50 and o= 4 what is the probability that 5% of the value are…

A:

Q: The RFS Electronics sells iPhones for Apple Inc. RFS usually sells the number of iPhones on Sunday.…

A: Given Information: The RFS Electronics sells iPhones for Apple Inc. RFS usually sells the number of…

Q: The factor of safety, F,, of a rock slope is commonly thought of as the ratio of the maximum load or…

A: Given, Sliding has a Weibull distribution with median = 2.947 and β = 0.3         To find, a)  What…

Q: Calculate the following probabilities using the Poisson Distribution Round to 3 decimal places a.…

A: The Provided information are: Calculating the probability using Poisson Distribution If X follows…

Q: Suppose that the random variable z, shown below, represents the number times . P(x) represents the…

A: a) The random variable x represents the number of times a randomly selected person having received…

Q: Given a normal distribution with μ=103 and σ=15​, and given you select a sample of n=9​, What is…

A: Given that μ = 103 σ = 15 we need to calculate the P ( X &lt; 92 )

Q: It is assumed that requests to a server with an average of 16 requests per minute are poisson…

A:

Q: Read the z statistic from the normal distribution table and choose the correct answer. For a…

A: Given,   α=0.0764   The objective is find z, for a one-tailed (upper tail) using α=0.0764

Q: Consider the following table which provides a probability distribution for the random variable x,…

A: Consider the calculations in the table given below:

Q: Given a normal distribution with μ=103 and σ=15​, and given you select a sample of n=9​, What is…

A: GivenMean(μ)=103standard deviation(σ)=15sample size(n)=9

Q: For a Bernoulli random variable with probability of success P = 0.5, compute the mean and variance.

A: Let X denote the Bernoulli random variable. Probability of success (p)=0.5

Q: Read the z statistic from the normal distribution table. For a one-tailed test (lower tail) using a…

A: Normal distribution curve is of bell shape. It has two tail, they are upper and lower tail. The…

Q: In the following probability distribution, the random variable X represents the number of activities…

A: For the given data Find the given ( a )( b )( c) and ( d )

Q: Given a normal distribution with μ=100 and σ=8​, and given you select a sample of n=16​, What is the…

A: Solution: From the given information, X follows normal distribution with mean µ=100 and a standard…

Q: The number of computers sold per day at a local computer store, along with its corresponding…

A: Solution

Q: Refer to the given table in answering numbers 18-19. In the experiment of tossing coin twice, the…

A: Given data is X 0 1 2 P(X) 1/4 1/2 1/4

Q: If X does not have a normal distribution, which of the following is true about the shape…

A: This is based on central limit theorem.