can you help me solve this problem

UYHAQORET77

Statistics

Asked: Apr 7th, 2016

Question Description

the us energy information association claims that the mean monthly residential electricity consumption in your town is more than 874 kwh. you want to test this claim. you find that a random sample of 64 residential customers has a mean monthly electricity consumption of 905 kwh. assume the population standard deviation is 125kwh. at a+0.05, do you have enough evidence to support the association's claim?

1) identify the claim and state Ho and Ha

2) find the critical value(s) and identify the rejection region(s)

3) find the standardized test statistc z

4) deciede whether to reject or fail to reject the null hypothesis and

5) interpret the decision in the context of the original claim

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Central Tendency and Variability

Central Tendency and Variability Understanding descriptive statistics and their variability is a fundamental aspect of ...

Central Tendency and Variability

Central Tendency and Variability Understanding descriptive statistics and their variability is a fundamental aspect of statistical analysis. On their own, descriptive statistics tell us how frequently an observation occurs, what is considered “average”, and how far data in our sample deviate from being “average.” With descriptive statistics, we are able to provide a summary of characteristics from both large and small datasets. In addition to the valuable information they provide on their own, measures of central tendency and variability become important components in many of the statistical tests that we will cover. Therefore, we can think about central tendency and variability as the cornerstone to the quantitative structure we are building. For this Discussion, you will examine central tendency and variability based on two separate variables. You will also explore the implications for positive social change based on the results of the data. Post, present, and report a descriptive analysis for your variables, specifically noting the following: For your continuous variable: From the General Social Survey dataset Report the mean, median, and mode.What might be the better measure for central tendency? (i.e., mean, median, or mode) and why?Report the standard deviation.How variable are the data?How would you describe this data?What sort of research question would this variable help answer that might inform social change? Post the following information for your categorical variable: A frequency distribution.An appropriate measure of variation.How variable are the data?How would you describe this data?What sort of research question would this variable help answer that might inform social change?

Introduction to Problem Solving Quiz

1) Find x in the figure below if the perimeter of the parallelogram is 324 feet. Round to the nearest foot.a. 20 ft.b. 10 ...

Introduction to Problem Solving Quiz

1) Find x in the figure below if the perimeter of the parallelogram is 324 feet. Round to the nearest foot.a. 20 ft.b. 10 ft.c. 19 ft.d. 36 ft. 2) The sum of three consecutive even integers is 390. Find the smallest number.a. 128 b. 129c. 130d. 132 3) NVESCO Field at Mile High, home to the Denver Broncos, has 11,675 more seats than Heinz Field, home to the Pittsburgh Steelers. Together, these two stadiums can seat a total of 140,575 NFL fans. How many seats does the Broncos stadium have? (Sources: Denver Broncos, Pittsburgh Steelers)a. 76,125b. 152,250c. 128,900d. 64,450 4) Of the 1376 tornadoes that occurred in the United States during 2003, 39.5% occurred during the Month of May. How many tornadoes occurred during May 2003? Round to the nearest whole.a. 544b. 791c. 543 d. 792 5) One number is five times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 415, find the largest.a. 45b. 145c. 163d. 2256) A flooded piece of land near the Mississippi River in New Orleans is to be surveyed and divided into 4 rectangles of equal dimension as shown below. Express the total amount of fencing needed as an algebraic expression in x.a. x + 3x - 15b. 4x + 5(3x - 15)c. 8x + 5(3x - 15)d. 8x + 3x - 15 7) Which expression could be used to represent the total amount of money (in cents) in x nickels, (x + 3) dimes, and 2x quarters? (Hint: the value of a nickel is 5 cents, the value of a dime is 10 cents, and the value of a quarter is 25 cents).a. x + x + 3 + 2xb. 5x + 10(x + 3) + 25xc. 5x + 10x + 3 + 25(2x)d. 5x + 10(x + 3) + 25(2x) 8) Which of the following is not one of the four steps for problem solving?a. Discoverb. Interpretc. Understandd. Solve 9) Which algebraic expression could be used to find the perimeter of the figure below?a. 3x + x + 3x - 1b. 3x + x + x + 3x - 1c. 3x + 3x + x + xd. 2x + 3x - 1 10) Which of the following algebraic expressions should be used to model the sentence below?The sum of three consecutive odd integers, if x + 1 is the first odd integer.a. x + x + 2 + x + 4b. x + x + 1 + x + 2c. x + 1 + x + 3 + x + 5d. x + 1 + x + 2 + x + 3

QMB4200 Rasmussen College Real Time Analytics Issues Case Study

You are working as an analytics developer for a big defense company. Your company is manufacturing aircraft. You are alrea ...

QMB4200 Rasmussen College Real Time Analytics Issues Case Study

You are working as an analytics developer for a big defense company. Your company is manufacturing aircraft. You are already collecting all the flight data via CSV files and running batch analytics on it. There are some issues that cannot be resolved by the batch analytics, for example, the aircraft fuel leak.In this assignment, you will write a case study and describe how to resolve the business issue using the real-time analytics. Submission:Write 1-2 page document that describes how to resolve the business problem using the real-time analytics.Infrastructure needs for real-time analytics.Architecture diagram.

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Central Tendency and Variability

Central Tendency and Variability Understanding descriptive statistics and their variability is a fundamental aspect of ...

Central Tendency and Variability

Central Tendency and Variability Understanding descriptive statistics and their variability is a fundamental aspect of statistical analysis. On their own, descriptive statistics tell us how frequently an observation occurs, what is considered “average”, and how far data in our sample deviate from being “average.” With descriptive statistics, we are able to provide a summary of characteristics from both large and small datasets. In addition to the valuable information they provide on their own, measures of central tendency and variability become important components in many of the statistical tests that we will cover. Therefore, we can think about central tendency and variability as the cornerstone to the quantitative structure we are building. For this Discussion, you will examine central tendency and variability based on two separate variables. You will also explore the implications for positive social change based on the results of the data. Post, present, and report a descriptive analysis for your variables, specifically noting the following: For your continuous variable: From the General Social Survey dataset Report the mean, median, and mode.What might be the better measure for central tendency? (i.e., mean, median, or mode) and why?Report the standard deviation.How variable are the data?How would you describe this data?What sort of research question would this variable help answer that might inform social change? Post the following information for your categorical variable: A frequency distribution.An appropriate measure of variation.How variable are the data?How would you describe this data?What sort of research question would this variable help answer that might inform social change?

Introduction to Problem Solving Quiz

1) Find x in the figure below if the perimeter of the parallelogram is 324 feet. Round to the nearest foot.a. 20 ft.b. 10 ...

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