Examples of descriptive statistics

Assignment Help Basic Statistics
Reference no: EM1393500

Critically discuss some examples of descriptive statistics?
Why are they used in research?
What is a confidence interval?
What is a z score, and when is it used?

Reference no: EM1393500

Questions Cloud

Find consequences of the emergence of species : Suppose if we hire the biological species concept where a population or group of populations within which genes are actually or potentially exchanged by interbreeding.
Probability of a randomly selected monthly cell phone bill : What is the probability that a randomly selected monthly cell phone bill is more than $100?
Relationship between objectives and goals : Critically discuss the difference among strategic, long-term, and short-term objectives? What is the relationship between objectives and goals? What are examples of this relationship?
What are processes and techniques to make the budgeting : What are some processes and techniques that you would suggest to make the budgeting process work well? Start with general but also provide some specifics as relate to creating detailed project budgets. Be sure to justify why you think your recomme..
Examples of descriptive statistics : Critically discuss some examples of descriptive statistics? Why are they used in research? What is a confidence interval?
Question based on classical genetics : Suppose that 2-pigments, red and blue, mix to give the normal wild-type purple color of petunia petals. Separate biochemical pathways synthesize the two pigments.
Probability results for small and big businesses : A Gallup Poll (June 9 to 12, 2008) interviewed a random sample of 822 adults (18 years or older). The people in the sample were asked about their level of confidence in a variety of institutions in the United States. Here are the results for small..
Show the working of ldcr and mdcr protocol : Find that distance with which the tasks are feasibly scheduled and Show the working of LDCR and MDCR protocol on the given message set
What is the efficiency of the line : what is the efficiency of the line balanced as in d? suppose the demand rose from 750 to 800 units per day.what would you do?show any amount or calculations. Suppose that demand rose from 750 to 1,000 units per day.what would you do?show any amoun..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Explain the given anova excel output table

The display represents Excel output for an ANOVA analysis with σ = 0.05.

  Comparing relationship between variables

Which measure of association do you use to compare the relationship between these variables? Why?

  Poisson approximation to the binomial distribution

The rate of defects among CD players of a certain brand is 1.1%. Use the Poisson approximation to the binomial distribution to find the probability that among 240 such CD players received by a store, there is at most one defective CD player.

  Calculate the confidence interval

You read a report that says, "On the basis of the simple random sample of 100 high school seniors that took the SATM test this year, a confidence interval for  µ  is found to be 512.00 ± 25.76."  What was the confidence level used to calculate this..

  Determining cutoff point for those who earn bonus

Sales manager wishes to award sales representatives who earn the largest commissions a bonus of= $1,000 .He can award bonus to 20% of representatives. Determine cutoff point between those who earn bonus and those who don't?

  Create a histogram and a percentage polygon

Form a frequency distribution and a percentage distribution that have class intervals with the upper class limits $99, $119, and so on.

  Identify null-alternative hypothesis-test statistic

Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-Value or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim.

  Standard error of the sample proportion

They are asked if they use a laptop in class to take notes. Suppose that based on the survey, 220 of the 400 students responded "yes". a) What is the value of the sample proportion ^p ? b) What is the standard error of the sample proportion?

  Find statistical hypothesis testing - frequency distribution

Statistical Hypothesis testing - Frequency distribution

  Process in a blood testing procedure

To speed up the process in a blood testing procedure, blood samples from 3 people are combined into one mixture. The mixture will only test negative if all the individual samples are negative.

  Determining equal period of before-after time

Suppose that data is recorded for equal period of "before"-"after" time.  Use 1% level for risk. Given processed data, explain what John must do.

  Sample findings-estimate the true mean

Based on the sample findings, estimate the true mean of Saturday sales with 90% probability.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd