Assume the samples are random and independent, the populations are normally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are classified according to battery type. At a=0.10, is there enough evidence to conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below. A Click the icon to view the battery cost data. (a) Let u. 2. Ha represent the mean prices for the group size 35, 65, and 24/24F respectively. lIdentify the claim and state He and H. Hg: H Cost of batteries by type The claim is the V hypothesis. Group size 35 Group size 65 Group size 24/24F 91 99 111 119| 126 o 91 144 174 180 278 79 (b) Find the critical value, Fo, and identify the rejection region. 84 126 140 140 The rejection region is F Fo. where Fo- (Round to two decimal places as needed.) (c) Find the test statistic F. F= (Round to two decimal places as needed.) Print Done (d) Decide whether to reject or fail to reject the null hypothesis. Họ because the test statistic vin the rejection region. (e) Interpret the decision in the context of the original claim. There Venough evidence at the % level of significance to V the claim that V mean battery price is vthe others. (Type an integer or a decimal.)
Assume the samples are random and independent, the populations are normally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are classified according to battery type. At a=0.10, is there enough evidence to conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below. A Click the icon to view the battery cost data. (a) Let u. 2. Ha represent the mean prices for the group size 35, 65, and 24/24F respectively. lIdentify the claim and state He and H. Hg: H Cost of batteries by type The claim is the V hypothesis. Group size 35 Group size 65 Group size 24/24F 91 99 111 119| 126 o 91 144 174 180 278 79 (b) Find the critical value, Fo, and identify the rejection region. 84 126 140 140 The rejection region is F Fo. where Fo- (Round to two decimal places as needed.) (c) Find the test statistic F. F= (Round to two decimal places as needed.) Print Done (d) Decide whether to reject or fail to reject the null hypothesis. Họ because the test statistic vin the rejection region. (e) Interpret the decision in the context of the original claim. There Venough evidence at the % level of significance to V the claim that V mean battery price is vthe others. (Type an integer or a decimal.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Assume the samples are random and independent, the populations are nomally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are
classified according to battery type. At a = 0.10, is there enough evidence to conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below.
E Click the icon to view the battery cost data.
(a) Let u. 2 Ha represent the mean prices for the group size 35, 65, and 24/24F respectively. Identify the claim and state Ho and H..
Ho:
H
- X
Cost of batteries by type
The claim
the
V hypothesis.
Group size 35
Group size 65
Group size 24/ 24F
91 99 111 119 126 O
91 144 174 180 278
79 84 126 140 140
(b) Find the critical value, Fo. and identify the rejection region.
The rejection region is F Fo, where Fo-
(Round to two decimal places as needed.)
(c) Find the test statistic F.
F= (Round to two decimal places as needed.)
Print
Done
(d) Decide whether to reject or fail to reject the null hypothesis.
V Họ because the test statistic
V in the rejection region.
(e) Interpret the decision in the context of the original claim.
There
- enough evidence at the% level of significance to
V the claim that
mean battery price is
(Type an integer or a decimal.)
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