Claim: The mean pulse rate(in beats per minute) of adult males is equal to 694 b
ID: 3326692 • Letter: C
Question
Claim: The mean pulse rate(in beats per minute) of adult males is equal to 694 bpm. For a random sample of 152 adult males, the mean pulse rate is 70.5 bpm and the standard deviation is 10.7pm Complete parts(21) and (25) below 21. The symbolic notation of this claim is (A) > 69.4 (B) -69.4 (C) -69.4 (D) 69.4 (B) 69.4 (C) z 69.4 (D) 70.5 23. The alternative hypothesis for this test is (A) Hai-70.5 (B) Ha: 70.5 (C) Hi: p = 0.5 (D) Hai-69.4 24. The test statistic for this test is about (A) z = 1.267 (B) t = 2.459 (C) 0.55 (D)t 1.267 25. The rejection region for this test at the significance level of 0.05 is (A) t> 1.976 (B) t 1.976 (D) t 1.976Explanation / Answer
21)u= 69.4 bpm, Option B
22)Null hypothesis accepts the ideal condition thus u=69.4, Option B
23)Alternative hypothesis is true when null hypothesis is rejected
Thus, option D
24)
T = (bar x – u)/(s/sqrt(n))
t = (70.5-69.4) / (10.7/sqrt(152)) = 1.267
Option A
25)if t increases then it indicates value of sample mean will increase which will negatively impact null hypothesis
Thus, rejection region is t>95% confidence interval
Option D