Learn
Courses
Career Tracks
Upcoming Courses
Certificates
Career Track Certificate
Course Certificate
Resources
All Resources
Templates and models
Finance Data
Practice Exams
Knowledge Hub
Career Advice
Pricing
Business
Log In
Sign Up
Follow this topic
Share
Sam Parker
Last answered:
06 Dec 2021
Posted on:
06 Dec 2021
0
Z score for independent samples with unknown and different variances?
in
Statistics
/
Population variance known, z-score
1 answers ( 0 marked as helpful)
365 Tutor
Posted on:
06 Dec 2021
0
Submit an answer
Submit answer
related questions
Apurva Audi
0
12
Resolved:
Z-statistic and t-statistic
Muyiwa Adenusi
0
12
Resolved:
Null and Alternative Hypothesis
Basma Shaaban Saadi Ali
1
10
Question 1 , confused about the answer and need to understand it clearly
Asmaa Abdulhamid
2
8
how to include both the interval start and end in the axis's name??? any help!!
Maureen Njeri
0
6
The lower and higher interval bounds are repetitive and it's confusing to me
Nunno Nugroho
0
6
Resolved:
Different result with Excel formula
Saeed Ehsanfar
2
4
Confused by using quotation marks for <= and >= and using & in countifs function
Avtandil Chakhnashvili
0
4
If we know stdev from the sample and they're different, how do we assume variances are equal?