Equality sign is always a part of alternate hypothesis. This statement is a. Depends on data
b. Sometimes true
c. Always true
d. Never true

d. Never true

Explanation:

Null hypotheses is a form of hypotheses, generally considered to be the opposite of alternative hypothesis, and it is used in a statistical research studies, that shows there is no significant difference between two measured populations, situations or conditions.

Also, the null hypothesis is based on the assumption that the premise is true until evidence proves otherwise.

Hence, null hypothesis which is represented as H0, always has a symbol with an EQUAL SIGN in it, others sign is "greater than or equal to(≥)", and  "less than or equal to(≤)"

While the alternative hypothesis is represented with Ha, and never has a symbol with an EQUAL SIGN in it, but rather, "not equal to (≠)", "greater than (>)" and "less than (<)"

i believe

clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

hope this

i am brianly

sorry if this doesn't