To estimate the mean hourly rate of lawyers in Ramallah we took a sample of 70 lawyers. This sample has an average of $42. Assume that the population standard deviation is $10.5. Find a 95%

Q: For a population that has a standard deviation of 10, figure the standard deviation of the…

A: Given that  Population standard deviation =10 Then we have to find the standard deviation of the…

Q: Consider a total of 1,000 people. If it was said that within 1 deviation (of the mean) of all people…

A: Using empirical rule, 68% of the data lies within one standard deviation , 95% of the data lies…

Q: For a set of data that are distributed in a bell or mound shape, approximately what percentage of…

A: In particular, the empirical rule predicts that 68% of observations falls within the first standard…

Q: The length of life of 220 incandescent 60-watt lamps was obtained and yielded the frequency…

A: Cumulative frequency: It can be calculated by adding the frequency of the first class interval to…

Q: If the you were given a set of measurements 9.5 g, 8.5 g,9,1 g, 9.3 g, and 9.1 g, What is the mean…

A:

Q: How many observations would fall beyond two sample standard deviations below and above the sample…

A: We know that , If observations of data is 2 standard deviation  below the mean then we will have…

Q: Consider the data set {6,3, 2, 9, 3}. What is the population standard deviation for this set? Round…

A:

Q: Approximately 95% of the data values will fall within standard deviation(s) of the O One, mean Two,…

A: We have to find out correct option for given statement..

Q: What is the minimum percentage of data values that will come within 3.5 standard deviations from the…

A: Here, standard deviation = k = 3.5

Q: Find the standard deviation for the following data set. 2, 2, 2, 5, 5, 6, 6, 8, 8, 9 O A. 5 О В.…

A:

Q: Assuming that the heights of college women are normally distributed with mean 64 inches and standard…

A: Given: μ=64 inchesσ=1.8 inches We have to find 1. what percentage of women lies between 62.2 inches…

Q: (a) Determine the mean and the standard deviation for each data set.

A:

Q: From the following data : 23,25,41,29,50,36,37,44,30,35. Find the: Median…

A: 1. The Median is the middle number in the data set. Median for odd = n+12thvalue Median for even =…

Q: For a population that has a standard deviation of 10​, figure the standard deviation of the…

A:

Q: What percentage of ACT composite scores are below 31? Recall the following: For the ACT, the mean…

A: The provided information is  µ=21 σ=5.2 The area below 31 P(X-µσ<31-215.2)=P(Z<1.92)In the…

Q: Find the population standard deviation for the following scores: x = 2,45,2,6,3,2,9,10,11,34,64

A:

Q: Find the mean and standard deviation for the individualized instruction scores.

A:

Q: Answer the following questions about the numbers 217,835,   217,836,   217,837,   217,838, and…

A: We have to find mean and sd.

Q: If a data set has a mean of 80 and a standard deviation of 10, calculate +1.5 standard deviations…

A: Given : data set has a mean of 80 and a standard deviation of 10

Q: Given the data below, find the standard deviation 2,4,4,5,6,9

A: We need to compute the standard deviation of the data given below: 2,4,4,5,6,9

Q: Calculate the standard deviation for the following sample of 4 observations. Individual Income 1. 62…

A: Below is the answer

Q: If the mean of a given dataset is 131 and the standard deviation is 8, where will a majority of the…

A: NOTE: Refresh your page if you can't see any equations. . here mean of the data set is and the…

Q: Write the steps of calculating the population standard deviation.

A: Standard deviation: The standard deviation is based on how much each observation deviates from a…

Q: The mean number of travel days per year for salespeople employed by three hardware distributors…

A: Sample size: Sample is the part of the population that will help us to draw the inference about the…

Q: Given the sample data below: x  46  37  40  33  42  36  40  47  34  45 What is the standard…

A:

Q: (e) How good was the Denver Broncos' 2013 NFL season compared to the rest of the football teams that…

A: We have to find out z score..

Q: A sports shop records the sales of items made in India and those made in Australia. Country of…

A: The standard deviation is the measure of variability from individual data values to the mean and…

Q: In the data set below, what is the mean and the standard deviation? Round answers to the hundredth…

A:

Q: The ages of employees in a certain company were bell-shaped with mean 28 and standard deviation 5.…

A:

Q: Given a sample data set with a Standard Deviation of 1.34, what is the Variance of the data set.?…

A: We have to find variance.

Q: For the following sample of scores, if the sample mean is 20: 28 22 38 26 14 8 4 The standard…

A: Given,  Data is : 28, 22, 38, 26, 14, 8, 4

Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…

A: Given that, Mean, mu= 65 And standard deviation, sigma= 3.4

Q: 1. Find Mean, Standard Deviation, Third quantile, 21st Percentile, and 87th Percentile for the data…

A: Given: Population size N = 8 Formula Used: Mean X = 1N∑i=1nXi Standard deviation σ = ∑Xi-X2N Third…

Q: The standard deviation of the given data is A. 1.4495 B. 1.4597 C. 2.1011 D. 2.1307

A:

Q: What percentage of a population typically lands within two standard deviations of the mean under a…

A:

Q: Find the standard deviation for the following data set. ​2, 2,​ 2, 5,​ 5, 6,​ 6, 8,​ 8, 9   A. 2.49…

A:

Q: In a study where scientists wanted to compare two different techniques for measuring the amount of k…

A: From the given information, the claim of the problem is the true average difference between the…

Q: For the data from a sample shown below, answer the questions. Round to 2 decimal places. 26.4 29.3…

A:

Q: Given the mean and standard deviation for each city’s high temperatures for April 15: |City A City B…

A: Mean is generally represented as total sum of all observations divided by number of observations.…

Q: Given forecast errors of -5, 8, 8, and -3, what is the mean absolute deviation? O 2 O 4 6

A: The mean absolute deviation is obtained below: The given forecast error is -5, 8, 8 and -3. Let  E…

Q: For the data shown, answer the questions. Round to 2 decimal places. x 24.9 7.9 28.9 13 29.1…

A:

Q: If the mean speed for a major league fast ball is 90 miles per hour and the standard deviation is 5…

A: Given Information: Mean = 90  Standard deviation = 5 Standardized score for a pitch that is 97 miles…

Q: Answer all questions: 1. What is the range and standard deviation for the following population of…

A: According to the provided information, the scores are: 5,2,5,4

Q: Find the sample standard deviation for the following scores: x = 2,45,2,6,3,2,9,10,11,34,64

A: The random variable is x. The sample size is 11. It is given that, the sample size of 11…

Q: The standard deviation of the following data set 17, 13, 13, 22, 11, 20 is approximately :: 4 : 5 :…

A: Find the standard deviation.

Q: According to the Chebyshev Rule, at least 96% of all observations in any data set are contained…

A: Given Data: The percentage amount of data is: D%=96% From Chebyshev rule, The percentage amount of…

Q: For the following data in the sample:     0,    6,    8,    6,    5 Find the mean and the standard…

A: The data is given as 0, 6, 8, 6, 5.

Q: Find the mean, standard deviation, and relative standard deviation for the set of measurements (7,…

A: Mean: The mean value is calculated as follows: The sum of the observations is divided by the number…

Q: A standardized memory test has a mean of μ=100 and a standard deviation of σ = 10. Answer the…

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

Q: Convert the following raw scores to z-scores if the mean is 50 and the standard deviation is 10. a.…

A: We convert the given raw scores to z - scores when the mean is 50 and the standard deviation is 10.

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.