5. A certain calculator circuit board is manufactured in lots of 200. If 1% of the the  boards are defective, what are the mean and standard deviation of the number of defects in each lot?

Q: What is the population variance and standard deviation of the following 0, 13, 16, 17, 20, 24, 38

A: To determine the required values, first, determine the population mean μ of the  given values using…

Q: If the richest person in the world walks into a room with the 98 poorest people in the world, then…

A: Given: Richest person in the world has entered the room with other 98 individuals in the world

Q: what would the mean and standard deviation of the sample proportion ˆp be?

A: Let X be Pennsylvanians who have a high school diploma Given, n = 225 p = 0.83

Q: . A very skilled court stenographer makes one typographical error (typo) per hour on average. a.…

A: Discrete probability distribution is an important concept in probability distribution with…

Q: 8. The reading speed of sixth-grade students is approximately normal, with a mean speed of 135 words…

A:

Q: determine the range and standard deviation of 4,8,9,11,13,15

A: It is given that the data values are 4,8,9,11,13,15

Q: The standard deviation of the sample  1,1,1,2,3,3,3 is

A:

Q: Several students in an AP Statistics class administer a survey to a sample of students in their…

A: In this question we are asking number of students about how far they travel to school in miles. In…

Q: 6. A research article reported that for a random sample of 850 meal purchases made at fast food…

A: We have to perform left tailed test for the difference in means and since sample size is large…

Q: What is the standard deviation of the following: 12, 47, 31, 18, 20, 35

A: Compute the mean of the data using the formula: x=∑ixin x=12+47+31+18+20+356  =1636  =27.1667

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: 21. The mean height of a Clydesdale horse is 72 inches with a standard deviation of 1.4 inches. What…

A: Mean(µ) = 72Standard deviations (σ) = 1.4X ~ N (µ, σ )= N(72, 1.4)

Q: 31.The National Center for Health Statistics reports that the mean systolic blood pressure for males…

A: As the population standard deviation is not known, we will use the z test. As it is required to test…

Q: 2. Suppose the wait times at doctor's office are normally distributed, with mean of 30 minutes and a…

A: Let, X= wait time in office μ=mean=30 σ= sd=10

Q: 1. The mean IQ of 10000 students of AW University is 98 with standard deviation of 4. If 100 of them…

A:

Q: What are the range, variance, and standard deviation of 0, 5, 10, 15, 20, and 25?

A: The following information has been given: 0, 5, 10, 15, 20, 25

Q: A fair die is rolled 100 times and the frequency of each point occurring on the die is recorded.…

A: We first create a frequency distribution. Outcomes (X) X2 Frequency (fi) X2fi 1 1 15 15 2 4 8…

Q: The height of men is normally distributed, with a mean of 69.0 inches and a standard deviation of…

A: From the provided information,The mean and standard deviation of women's height are as…

Q: If a set of grades for a class has a large range and a small standard deviation, what can you say…

A: It is given that a set of grades for a class has large range and a small standard deviation.

Q: 9. Suppose only the top 20 % of marks on a university entrance exam qualifies an application for…

A: Here we can use normal distribution to find the minimum marks to be in top 20%. If x are minimum…

Q: Out of a class of 25 students, 24 took an exam in class and got a mean of 74 points and a standard…

A: Given: Total number of students, n = 25            Number of students who gave the test, n' = 24…

Q: What is the standard deviation of the following: 49, 14, 13, 41, 11, 50

A: Calculate Sample Standard deviation (S) from the following data49,14,13,41,11,50Solution: x x^2…

Q: 7. A sample of 5 monthly sales figures (in thousands of dollars are 10, 6, 5, 10, 9. Calculate the…

A: 7. From the given information, the data values are 10, 6, 5, 10 and 9. The sample mean is obtained…

Q: Data from home sales is on the last 3 pages, separated into 3 zip codes. 1) For each zip code find:…

A:

Q: What is the standard deviation of the following: 43, 22, 48, 17, 29, 43

A:

Q: Compute the standard deviation: a.       7, 6, 3, 5, 7, 9, 8, 4 b.       15, 30, 45, 15, 35, 25,…

A: We have given that,  a. 7, 6, 3, 5, 7, 9, 8, 4   b. 15, 30, 45, 15, 35, 25, 40   c. 40, 50, 60, 55,…

Q: 4 An LED lightbulb manufacturer produces lights with a mean lifespan of 10,000 hours and a standard…

A: Given information- Population mean µ = 10,000 hours Population standard deviation, σ = 1,000 hours…

Q: Suppose a population that has mean 90 and standard deviation 20. How many observations, n, should…

A:

Q: Compute the standard deviation: a.       5, 8, 5, 6, 3, 4, 7, 9, 9, 4 b.       10, 12, 15, 13, 20,…

A: (a)   Use EXCEL Procedure for finding the value of standard deviation.   Follow the instruction to…

Q: 14) Find the score that separates the top 80% from the bottom 20% if the Mean is 100 and the…

A: Given information Mean (µ) = 100 Standard deviation (σ) = 26 The score that separates the top 80%…

Q: The Sum of Squared Errors for a data set of 18 numbers is 64. What is the standard deviation?

A: Given thatThe sum of squared errors of data set (SS) = 64Number of data values in data set (n) =…

Q: 9. A pathologist knows that 14.9% of all deaths are attributable to myocardial infarctions (a type…

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.