Computers and Technology, 22.11.2020 06:30 bvaughn6477

Project 1 Organizing, Summarizing, and Describing Data using Excel

1. Find qualitative data set that you would like to organize using visual tools such as bar graph and pie chart
2. Construct a frequency table and use it to create a bar graph for your qualitative variable using Excel.
3. Construct a pie chart for the qualitative variable using Excel.
Quantitative data
1. Find a survey that analyzes value of a statistical variable.
2. Construct a histogram for your survey’s numerical data using Excel. Make sure that your
histogram has an appropriate width for the classes. Explain why your choice for the width
makes sense for your specific data.
3. Create a boxplot for the variable using Excel.
4. Write a description of each graph (What does each graph show you about your data, that you
won’t be able to easily see in the other graphs?).
5. Find the following sample statistics for the data set: Minimum value, Maximum value, Mean,
Median, Mode, Q1, Q3, Range, IQR, and Standard Deviation. For calculations use Excel. For each of these values write a sentence explaining what it tells you about the results in your survey. Please do not write about how they are calculated. The purpose of this exercise is to make sure that you understand the meaning for each of these statistics (not how you find it).
6. Describe and analyze the numerical data. What is the overall shape of the data set? Based on your answer, determine which measure of center (mean, median or mode) you think is best and why. Determine which measure of spread (IQR / standard deviation or range) you think is best and why. Write a sentence explaining the real meaning of the center you found and a sentence explaining the real meaning of the spread you have found for your data.
7. Explain all your findings from the questions above. What did you learn about the population of your interest from your data analysis?
Binomial Distribution
1. Choose an experiment that will follow binomial distribution.
Example: An urn contains 1000 balls, 100 are green and 900 are white. One ball is chosen from the urn 100 times with replacement.
2. Use Excel to find the probability of getting a certain number of successes in a certain number of trials where the probability of success on each trial is fixed.
3. Use the same example to calculate cumulative probability.
4. Redo 2 and 3 again using Excel but use the normal approximation (normal. dist).
5. How do the answers compare?
6. Discuss use of normal approximation to the binomial distribution.

Answers: 2

Show answers

Another question on Computers and Technology

Computers and Technology, 22.06.2019 23:30

In my email i got a message it says a quick message and in message details on who its from its says nicole and under nicole is [email protected] -

Answers: 1

Answer

Computers and Technology, 23.06.2019 01:10

Problem 1 - hashing we would like to use initials to locate an individual. for instance, mel should locate the person mark e. lehr. note: this is all upper case. generate a hash function for the above using the numbers on your telephone. you know, each letter has a number associated with it, so examine your telephone keypad. generate 512 random 3 letter initials and take statistics on a linked list array size 512 to hold this information report how many have no elements, 1 element, 2 elements, does this agree with the hashing statistics distribution?

Answers: 1

Answer

Computers and Technology, 24.06.2019 18:50

Write a program that reads in a series of lines of input character by character (using the library function the first line of the input contains an integer which specifies the number of remaining lines of input, each of which contains a floating point number. the integer value on the first line can be read with (the library function) but all of the following lines can only be read with each line, after the first, contains a single floating point value, with up to four digits before the decimal point, and up to four digits following the decimal point, but there is not necessarily a decimal point in each number; i.e., it may appear to be an integer, but the digits should be read by your program, and the number should be converted to a corresponding floating point number. for instance, suppose the following input: 5 3.1255 20.25 0.875 1921.50 31 the required output is: − each of the input floating point values, printed on a separate line with four digits of precision, using printf(); − on the last line of the output, the string “total: ” followed by the sum of the input values, printed with printf() to 4 digits of precision. for example, the total of the sample input given above is 1976.7505, so the required output for this input would be: 3.1255 20.2500 0.8750 1921.5000 31.0000 total: 1976.7505 do not concern yourself with small differences in the total due to rounding, as the grader will not deduct points for this. constraints: − you are not allowed to use arrays on this portion of the lab assignment. − there is no maximum number of lines allowable. it all depends upon the first value of input. since you aren’t saving anything, it doesn’t matter. − you can assume that input will not contain more than 4 digits before or after the decimal point. you do not need to error check for this condition. -you must use getchar() to read in the floating point values one character at a time (i.e. do not use -you must declare and use your floating point values as a double to minimize rounding errors. -only use printf() to output the floating point numbers and the total (do not use − be sure your directions to the user are clear so they are sure to enter the input data correctly.

Answers: 1

Answer

Computers and Technology, 24.06.2019 22:30

Telling a computer that is already on to turn again is known as what type of boot?

Answers: 1

Answer

You know the right answer?

Project 1 Organizing, Summarizing, and Describing Data using Excel

1. Find qualitative...

Questions