the random variable to estimate parameter of the population

Normal Distribution is:

A Continuous Probability Distribution

I love the statistics

I hate from the bottom of my heart

Only the original Pizza Napoletana!!!

the entire collection of units from which we collect data

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Summer School 2017 in Anglia Ruskin University

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#Statistics

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Questions 17

Answers

1
The sample mean is
a random variable
a parameter
a random parameter
a value
2
Multi-Stage Sample is:
a non random sample
a random sample
classic sample
a non probabilistic sample
3
What is the total probability under the normal curve?
0.99
0.95
0.90
1
4
Snowball Sample is:
a probabilistic sample
classic sample
a non random sample
a random sample
5
The following formula is used to:
Standardize the data
Have the Mean equal to Z
Have the Mean equal to 1
Center the data
6
Confidence interval for the mean is
a range of estimates
a range of estimators
an estimator
a range of values
7
An estimator is
the value obtained from the population
the person that estimates
the value obtained from the sample
the random variable to estimate parameter of the population
8
The mean of the population is
a parameter of the population
an estimation of the population
an estimation of the sample
a parameter of the sample
9
Normal Distribution is:
A Z Probability Distribution
A Discrete Probability Distribution
A Standard Probability Distribution
A Continuous Probability Distribution
10
If we increase the sample size n, what is the effect on the confidence interval (CI)?
CI increases
no effect
CI has positive effect
CI decreases
11
Do we have to always use a significance level (α) of 5% during a hypothesis test?
Yes
None of the above
May be
No
12
Random Variables can be divided in two main groups:
None of the above
Discrete and Continuous
Normal and Binomial
Standard Normal and Binomial
13
I love the statistics
No
I don't Know
Yes
I hate from the bottom of my heart
14
When the statistics test is the rejection region means
We reject the alternative hypothesis
We do not reject the null hypothesis
We reject the null hypothesis
We do not reject the alternative hypothesis
15
Do you like pizza?
Why do you ask me that?
Yes
No
Only the original Pizza Napoletana!!!
16
When the data are standardized, the Normal distribution has:
None of the above
Mean = 0 and Variance = 1
Mean = 1 and Variance = 0
Mean = 1 and Variance = 1
17
Population is
A sample randomly selected
A group selected from a larger group
the entire collection of units from which we collect data
People live in a town

Summer School 2017 in Anglia Ruskin University Flashcards | StudBud