16. BD is an altitude in AABC find the value of x'if MZADB - (3x + 15)°
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Answer:
We reject the null hypothesis.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 71
Alpha, α = 0.08
Population variance is known.
First, we design the null and the alternate hypothesis
We use One-tailed z test to perform this hypothesis.
Formula:
a) We calculate the z-critical with the help of z-table.
b)
Since,
We fail to accept the null hypothesis and reject the null hypothesis and accept the alternate hypothesis.