Answer: The question is find the test statistic
Answer: The test statistic is 0.5282
Step-by-step explanation:
Hypothesized mean u =69.3 , sample size (n) = 140, sample mean x = 69.8 , standard deviation s = 11.2
H₀: u = 69.3 bpm,
Hₐ: u ≠ 69.3
The test statistic is given by = (x-u / (s/√n). Thus we have,
(69.8 - 69.3) / (11.2/√140)
0.5 / (11.2/11.832)
= 0.5/0.9466
= 0.5282.
