I'm trying to find a way to divide a skewed distribution in n-tiles (n=4 is Quartiles) however I want the mean of all groups to be "representative." Relevant information:...

I'm trying to find a way to divide a skewed distribution in n-tiles (n=4 is Quartiles) however I want the mean of all groups to be "representative." Relevant information:...

A student writes a multiple choice test consisting of three problems: The first one has 3 possible answers, of which one is correct. The second one has 5 possible answers, of which one...

do cafe customers stay longer with darker lighting- is this observational or observational with case control It's either a.observational b.observational with case control...

The second one is: do cafe customers stay longer with dark let lighting- is this observational,observational with case control,experiment,experiment with single or double blinding

Let’s say it is the 2017-2018 academic year. In 2nd year statistics (grade), your friend achieved a grade of 64. Based on this year’s data, given her grade in 2nd year, what grade would you predict...

Do adding multivitamin supplements to your daily diet help decrease the number of colds caught...is this a double blind or single blind study?

The variation found among raw scores in a particular group in referred to as: a. between group variation b. Within group variation C. Total variation d. None

Edit Predictor variable is continuous with Quartiles (Q1, Q2, Q3, Q4) and 9-10 outcome variables (e.g CAC, CRP, TC, TG, small LDL-p, small HDL-p etc). I made binary of all outcome variables. Did binomial...

A basketballs players attempts 20 shots from the field during a game. This player hits about 46% of these shots. What is the chance the player hits more than 15 shots? This information will help the...

Of the following mortality rates, which two have the same denominator? I. crude mortality rate. II. age-specific mortality rate III. sex-specific mortality rate. IV.cause-specific mortality rate Select...

Resveratrol, a compound in grapes and red wine, has been shown to promote weight loss in rodents and now in a primate.1 Lemurs fed a resveratrol supplement for four weeks had decreased food intake,...

I need the analytical results of the project for a written summary. If I have 4 participants in a project & they have all answered a pre and post survey that is a 17 point Likert scale in...

Let f(x)=2x^−3 for 1<x<Infinity ,f(x)=0 otherwise be the pdf for a random variable X, find F(x). Could you please help me how can I find it I know f(xi)=F(xi)-F(xi-1) ?

A company that produces Internet services wanted to determine the number of devices connected to the Internet American homes contain. The company surveyed 240 randomly selected homes and determined...

Use the given data to find the minimum sample size required to estimate the population proportion.

use the given degree of confidence and sample data to construct interval for the population proportion p.

Mr smith and mr. Jones both plan to do an experiment to determine whether a coin (would land heads 50% of the time) Mr. Smith plans to flip the coin 1,000 times, but Mr. Jones only plans to flip it...

IF I CHOOSE TWO AMERICANS AT RANDOM AND INDEPENDENTLY WHAT IS THE PROBABILITY THAT BOTH LIVE BELOW POVERTY LINE GIVE ANSWER TO THE NEAREST WHOLE PERCENT

Suppose that a judges decisions follow a binomial distribution and that his verdict is correct 90% of the time. In his next 10 decisions, the probability that he makes fewer than 2 incorrect verdicts...

I have a table with regression statistics, cofficients, SE, t-stat, p-value, lower 85% and upper 95%. I'm not even sure where to start. 1. I need to find statistical...

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