I already answered the first one correctly I need the anser to the following: Ca
ID: 3133619 • Letter: I
Question
I already answered the first one correctly I need the anser to the following:
Calculate the test statistic
____ ( Round to three decimal places as needed.
What is the range of values for the P value?
_________
Identify the critical value(s)
___ (Round to three decimal places as needed. Use a comma to separate answers as needed.)
State the final conclusion that addresses the original claim.
_____ H0. There is ____ evidence to warrant rejection of the claim that the mean voltage
The first blank for the last question you have to choose between Failed to reject or reject H0. The second blank is asking if ist sufficient or non sufficient.
Sample Data table
Day volts
1 123.7
2 123.9
3 123.9
4 123.9
5 123.4
6 123.3
7 123.3
8 123.6
9 123.5
10 123.6
11 123.5
12 123.7
13 123.5
14 123.7
15 123.9
16 124.0
17 124.2
18 124.4
19 123.8
20 123.8
21 124.0
22 123.9
23 123.6
24 124.5
25 123.4
26 123.4
27 123.4
28 123.4
29 123.3
30 123.6
31 123.5
32 123.6
33 124.1
34 123.9
35 123.9
36 123.8
37 123.9
38 123.7
39 123.8
40 123.8
Explanation / Answer
Formulating the null and alternative hypotheses,
Ho: u = 120
Ha: u =/ 120
As we can see, this is a two tailed test.
Getting the test statistic, as
X = sample mean = 123.7275
uo = hypothesized mean = 120
n = sample size = 40
s = standard deviation = 0.28643476
Thus, z = (X - uo) * sqrt(n) / s = 82.30418664 [ANSWER, TEST STATISTIC]
********************************
Also, the p value is
p < 0.005
******************************
For 0.01 level, two tailed,
zcrit = -2.576, 2.576 [ANSWER]
************************
As P < 0.01, we REJECT HO. [ANSWER]
___REJECT__ H0. There is __SIGNIFICANT__ evidence to warrant rejection of the claim that the mean voltage
The first blank for the last question you have to choose between Failed to reject or reject H0. The second blank is asking if ist sufficient or non sufficient.
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