What is the target sample size for a population of 3,500 people with a standard value of 1.65 and a sampling error of 10%?

Q: For the following frequency distribution, what is ΣX? X              f 30-34       1 25-29       ...

A: Given data is  x f 30-34 1 25-29 1 20-24 3 15-19 2 10-14 1

Q: Calculate the Karl Pearson 's coefficient of correction between expenditure and sales.

A: Given: Expenditure, X Sales, Y 39 47 65 53 62 58 90 86 82 62 75 68 25 60 98 91 ...

Q: Which of the following statistical test is most appropriate to use in order to determine the relatio...

A: In the given problem we have to answer the question of, Which of the statistical test is most approp...

Q: Multivariate analysis a. is interested in a predictive variable which is a dependent variable, an...

A: All the options above holds except the second one as multivariate analysis is regarded as more than ...

Q: Look at the hormal curve below, and find u, u +o, and o. u +o = 31 33 35 37

A:

Q: 5. Find the critical value(s) for a z-test of a mean for a left-tailed test with a-0.05. A) 1.645 B)...

A: Given,α=0.05 and the given test is left tailed test.

Q: A student's marks in 5 subjects are 75, 68, 80, 92, 56. Find the average of his marks.

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Q: (a). Consider the Stock data given in the following table and answer the following questions. Adj Cl...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: The following contingency table shows the results of a car dealership's recent survey, recording the...

A: Given    Ford Toyota VW TOTAL MEN 15 10 13 38 WOMEN 16 10 10 36 TOTAL 31 20 23 74

Q: Using the digits 1, 2, and 3, how many two-digit numbers can be formed if repetition is not allowed?...

A: Given: Available digits are 1,2,3  

Q: Consider the regression model Y = Bo + B1X; + u¿. Suppose that the estimated OLS regression line is ...

A:

Q: Amber rolls a 6-sided die. On her first roll, she gets a "3". She rolls again. (a) What is th...

A: Amber rolls a 6-sided die. On her first roll, she gets a "3". She rolls again. (a) P(3∣3) =   ? (...

Q: Systolic blood pressure is the amount of pressure that blood exerts on blood vessels while the heart...

A: In order to determine whether the mean systolic blood pressure of employees is greater than the repo...

Q: Determine if events A and B are independent. 169 7 P(A and B) 20 7 13 Р(В) 20 13 P(A and B) 20 1) P(...

A: Result used  Let A and B are independent event  P(A and B)=P(A)P(B)  Note: According to Bartleby gui...

Q: What middle interval captures the fill of 95% of all bottles?

A: Let X denote the amount of beer in a bottle. Given that X follows N(mean = 330, SD = 2.9), then Z = ...

Q: 7. Qualitative data is collected using open-ended questions and is subject to the interpretation of ...

A: We need answer if the given statement that the qualitative data is collected using open-ended questi...

Q: If A and B are two independent events, then P(A|B) = P(B) True or false?

A: We have given that,  If A and B are two independent events, then P(A|B) = P(B) True or false?

Q: researcher has hypotheses that children who are "inclusive"  classroom  develop more  empa   than c...

A: Claim : children who are "inclusive" classroom develop more empa  than children who are NOT in "incl...

Q: Given the following ultimate class frequencies find the frequencies of positive class. (ABC) = 149, ...

A:

Q: Question 1 (. Gauge Repeatability and Reproducibility (GR&R) studies is a measure of the capability ...

A:   A A B B Sample (n) Trail 1 Trail 2 Trail 1 Trail 2 1 0.473 0.472 0.472 0.469 2 0.468 0.471 0...

Q: a. parametric tests have strict assumptions and require a particular distribution. b. if one cann...

A: The first statement is true, as parametric tests are entirely dependent on a particular distribution...

Q: Automobile Insurance Premiums. The Onsure.com website reports that the mean annual premium for autom...

A: (a)

Q: а. Mean b. Median с. Standard Deviation d. Mode Construct a Relative Frequency Histogram Construct a...

A: According to our policy I have solved only 3 subparts for remaining please repost the question . Tha...

Q: Roll two fair dice. Use the Poisson approximation to find the probability that you will roll at leas...

A: Given that two dice are rolled, then total no. of out comes are 36, let p be the probability of doub...

Q: to 570 liked English, 650 liked French, 480 liked German, 440 liked English and 700 persons of Londo...

A:

Q: In one case a byte is defined as a sequence of 8 bits. Each bit can be either zero or one. How many ...

A:

Q: If P(A) = 0.5, P(B) = 0.7, and A and B are independent, find P(A and B). P(A and B) = (Type an integ...

A:

Q: Show combination notation in solving the problem below. - I have 5 coins in my purse; 1 five-centav...

A:

Q: Solve for the ff: A card is randomly drawn from a standard deck of 52 cards. Find the probability o...

A: We have to find given probability.

Q: At a certain college, there were 600 science majors, 200 engineering majors, and 400 business majors...

A: It is given that the number of science majors is 600, the number of engineering majors is 200 and th...

Q: Suppose we double the sample size to n = 2 × 82 = 164.  Regarding the impact of changing the sample ...

A: what will be the impact of changing the sample size on the margin of sampling error, doubling the sa...

Q: Calculate the loss table from the following payoff table: PAYOFF TABLE Events Action E2 E3 E4 E1 300...

A:

Q: Sale, 200 B8ORS are fiction and 300 books are nonfiction books. Of the fiction books, 80 are Adult b...

A:

Q: A research team is interested in determining if there is a relationship between death anxiety and re...

A: Here we want to test if there is any relation between death anxiety and religiosity. 

Q: . Among the adult population of a certain town 50% are male. 60% are wage-earner and 50% are 45 year...

A:

Q: A study of the ages of 100 person's grouped into intervals 20-22, 22-24, 24-26....., revealed the me...

A: Given  Mean=μ=32.02, standard deviation=σ=13.18, n=100 

Q: 6. Consider the process of a student showing up for an exam in the wrong classroom and have absolute...

A:

Q: Activity 2. Abstract Analysis Bullying is a form of peer violence needing extensive research to help...

A: Answer 1 : The main topic of research is to study peer bullying based on gender differences and what...

Q: A set of math test scores has a mean of 70 and a standard deviation of 8.  A set of English test sc...

A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively. Thus...

Q: A die is rolled twice. What is the probability of showing a 5 on the first roll and an even number o...

A: According to the given information, we have Given that a die is rolled twice.

Q: Five hundred children participated in a field demonstration. Their heights have an average of 110 cm...

A:

Q: A firm reported that its Net Worth in the years 2011-2016 are as follows: Year 2011 -2012 2012 2013 ...

A:

Q: Do bonds reduce the overall rsk of an investment portfolio? Let x be a random variable representing ...

A: Chebyshev's theorem: At least 75% of the observations are lies between two standard deviations, x¯±...

Q: The monthly, seasonally-adjusted Consumer Price Index for four sectors—Energy, Apparel, Education, a...

A: Month Energy Apparel Education Food Mean JAN 212.1124 126.247 243.237 238.9554 205.138 FEB 211.1...

Q: HOMEWORK 5 - Normal Distribution - Area under Normal Curve Sketch the areas under the standard norma...

A:

Q: A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the ve...

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Q: A population has a mean of  1398.25 and standard deviation of 246.85   16 If we kept n at 82 but re...

A: The correct option is C which is the margin of error increase by 31% the solution given in the image...

Q: Explain the meaning of a Type I error. A) Concluding that u> 19.2 hours when in fact u = 19.2 hours ...

A: Here use definition of type 1 error

Q: Assume we design a statistical study where 10 participants try 3 chocolate types (A, B,C) in random...

A: For Latin Square Design the factors and blocks must be equal making a square matrix which is not in ...

Q: Which of the following is a multivariate analysis method that expresses the strength of the associat...

A: Given:  Which of the following is a multivariate analysis method that expresses the strength of the ...