Answer:
the y adds 9 for every one x
Step-by-step explanation:
Answer:
Tell me you address right now!!!
Step-by-step explanation:
I am gonna call police for help!
Answer:
(A) Yes, since the test statistic is in the rejection region defined by the critical value, reject the null. The claim is the alternative, so the claim is supported.
Step-by-step explanation:
Null hypothesis: The wait time before a call is answered by a service representative is 3.3 minutes.
Alternate hypothesis: The wait time before a call is answered by a service representative is less than 3.3 minutes.
Test statistic (t) = (sample mean - population mean) ÷ sd/√n
sample mean = 3.24 minutes
population mean = 3.3 minutes
sd = 0.4 minutes
n = 62
degree of freedom = n - 1 = 62 - 1 = 71
significance level = 0.08
t = (3.24 - 3.3) ÷ 0.4/√62 = -0.06 ÷ 005 = -1.2
The test is a one-tailed test. The critical value corresponding to 61 degrees of freedom and 0.08 significance level is 1.654
Conclusion:
Reject the null hypothesis because the test statistic -1.2 is in the rejection region of the critical value 1.654. The claim is contained in the alternative hypothesis, so it is supported.
<em>son = 3 years</em>
<em>man = 29 years</em>
- Step-by-step explanation:
<em>Hi there !</em>
<em>m = man</em>
<em>s = son</em>
<em />
<em>m = s + 26</em>
<em>m + 10 = 3(s + 10)</em>
<em>replace m</em>
<em>(s + 26) + 10 = 3s + 30</em>
<em>26 + 10 - 30 = 3s - s</em>
<em>2s = 6</em>
<em>s = 3 years (son)</em>
<em>m = 3 + 26 = 29 years (man)</em>
<em>Good luck !</em>
