PLEASE HELP SOLVE. BLUE AREA IS TO BE TYPED 2 OR 3 DECIMALS WHETHER Z OR T TABLE
ID: 2933106 • Letter: P
Question
PLEASE HELP SOLVE.
BLUE AREA IS TO BE TYPED 2 OR 3 DECIMALS WHETHER Z OR T TABLE IS APPROPRIATE.
PURPLE AREA IS TO BE SELECTED FROM DROP DOWN MENU.
GREEN AREA MUST BE TYPED TO 4 DECIMALS.
PLEASE SHOW STEPS AND LABEL QUESTIONS 1-3 SO I CAN UNDERSTAND THE PROCESS.
THANK YOU!!
Dity-Probm-D.shb-Eocal ormatting Table Styles 11 ANote: Answer the Question(s) by Using the TI-30XA (or other approved) Calculator your answer, then round to four decimals. IMPORTANT: Make sure you carry all declmals until you reach The selling prices lin $) for the deluxe and standard model Ryobi wood sanders are shown for a sample of eight retail stores. Does the data suggest the difference in average selling price of these Ryobi models is more than $10 at a-0.01? (See exercise 27 on page 158 of your textbook for a similar problem.] Relail Store Deluxa 1 For the hrypothess stated sbuve in terms of Deluxe-Stander): what the test statistic? 35 tos the ndus'ur? If the 2 table is aperopriate thettable is aprooniate, Daily Problem 10/2/2017Explanation / Answer
Solution:
Here, we have to use paired t test for checking the following null and alternative hypotheses:
Null hypothesis: H0: µ1 - µ2 = 10
Alternative hypothesis: Ha: µ1 - µ2 > 10
This is a one tailed test. This is an upper tailed test or right tailed test.
Level of significance for this test is given as = 0.01.
The test statistic formula is given as below:
Test statistic = t = Dbar / [Sd/sqrt(n)]
Calculation table for computing the test statistic is given as below:
Deluxe
Standard
Di
(Di - DBar)^2
45
35
10
83.01234568
42
32
10
83.01234568
31
19
12
50.56790123
38
28
10
83.01234568
38
27
11
65.79012346
44
34
10
83.01234568
30
20
10
83.01234568
37
24
13
37.34567901
From above table, we have
Sample size = n = 8
Degrees of freedom = n – 1 = 8 – 1 = 7
Dbar = 19.1111
Sd = 13.2019
Test statistic = t = 19.1111/[13.2019/sqrt(8)]
Test statistic = t = 19.1111/4.66759243
Test statistic = t = 1.9520
Upper critical value = 1.8946 (by using t-table)
P-value = 0.0459
P-value > = 0.01
So, we do not reject the null hypothesis.
Question 1
Test statistic = 1.9520
Question 2
Do not reject the null hypothesis H0: µdeluxe - µstandard = 10
Question 3
If the t table is appropriate
P-value = 0.0459
Deluxe
Standard
Di
(Di - DBar)^2
45
35
10
83.01234568
42
32
10
83.01234568
31
19
12
50.56790123
38
28
10
83.01234568
38
27
11
65.79012346
44
34
10
83.01234568
30
20
10
83.01234568
37
24
13
37.34567901
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