Answer:
The length of a pen.
Step-by-step explanation:
A length of a pen is around three inches and is reasonable but all of the others are way too big and can be measured in feet or miles.
Step-by-step explanation:
9x²+bx+ 100
(3x)²+ bx + 10²
(3x)² + 10² + bx
(3x)² + 10² + bx
<u>The z = - 1.963 </u><u>lies </u><u>between -1.645 and 1.645 we fail to reject the </u><u>null hypothesis</u><u>.</u>
What does null hypothesis mean?
The null hypothesis is a typical statistical theory which suggests that no statistical relationship and significance exists in a set of given single observed variable, between two sets of observed data and measured phenomena.
Alternative hypothesis: p not equal to 0.30


z = - 1.963
Critical value at α = 0.10 is 1.645
Therefore, z=-0.89 lies between -1.645 and 1.645 we fail to reject the null hypothesis.
Learn more about Null hypothesis
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