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.
<u>Statement</u><u>:</u>
The base of a triangle is 3m and its height is
m.
<u>To </u><u>find </u><u>out:</u>
The area of the triangle.
<u>Solution:</u>
- Given, base = 3m, height =
m - We know,

- Therefore, the area of the triangle

<u>Answer</u><u>:</u>
The area of the triangle is 
Hope you could understand.
If you have any query, feel free to ask.
The oldster got a discount, so the original price is higher; let's call it x;



Answer: $14.00
$2.10 - $2 = $0.10
The banana cost 10 cents.
Answer:
3/7
Step-by-step explanation:
To find the square root of a fraction, find the square root of the numerator and denominator individually
So, √9 = 3
√49 = 7
Put them back as a fraction = 3/7
Hope this helps
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