Preschoolers has 15 boys and 12 girls what is the ratio of the girls to boys
2 answers:
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Answer:
-5
Step-by-step explanation:
add them together (-4)+(-1) make a t chart it'll help you out
Answer:
Step-by-step explanation:
- A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
- An alternative hypothesis says that there is a statistical significance between two variables.
Claim 1. : Mean age of online dating service users is 40 years.
i.e. , since it has equals sign so we take this as null hypothesis.
Claim 2. : Mean age of online dating service users is not 40 years.
⇒ Null Hypothesis :
Alternative hypothesis :