random sample of 280 flights from LGB to SFO using Option 1 and records their loading times. The sample mean is foun with a sample standard deviation of 4.3 minutes. They also select an independent random sample of 230 flights from LGB to SFO using C their loading times. The sample mean is found to be 18.3 minutes, with a sample standard deviation of 3.5 minutes. Since the sample siz assumed that the population standard deviation of the loading times using Option 1 and the loading times using Option 2 can be estimate standard deviation values given above. At the 0.10 level of significance, is there sufficient evidence to support the claim that the mean Op , is less than the mean Option 2 loading time, μ₂, for the airline's flights from LGB to SFO? Perform a one-tailed test. Then complete the p Carry your intermediate computations to at least three decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H₁. H P Ho :D S ô H₁ :D (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) |x X 9 a 0/0 00 0=0 Oso 020 0#0 0<0 0>0

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Related questions
Question

Please show all of them a,b,c,d, and e

An airline is trying two new boarding procedures, Option 1 and Option 2, to load passengers onto their Long Beach (LGB) to San Francisco (SFO) flights. Since
Option 1 has more automation, the airline suspects that the mean Option 1 loading time is less than the mean Option 2 loading time. To see if this is true, the
airline selects a random sample of 280 flights from LGB to SFO using Option 1 and records their loading times. The sample mean is found to be 17.7 minutes,
with a sample standard deviation of 4.3 minutes. They also select an independent random sample of 230 flights from LGB to SFO using Option 2 and record
their loading times. The sample mean is found to be 18.3 minutes, with a sample standard deviation of 3.5 minutes. Since the sample sizes are quite large, it is
assumed that the population standard deviation of the loading times using Option 1 and the loading times using Option 2 can be estimated to be the sample
standard deviation values given above. At the 0.10 level of significance, is there sufficient evidence to support the claim that the mean Option 1 loading time, μ₁
is less than the mean Option 2 loading time, μ₂, for the airline's flights from LGB to SFO? Perform a one-tailed test. Then complete the parts below.
I
Carry your intermediate computations to at least three decimal places. (If necessary, consult a list of formulas.)
[
5
(a) State the null hypothesis Ho and the alternative hypothesis H₁.
μ
O
Aa
S
Ho
H₁ : 0
(b) Determine the type of test statistic to use.
(Choose one) ▼
(c) Find the value of the test statistic. (Round to three or more decimal places.)
0
(d) Find the critical value at the 0.10 level of significance. (Round to three or more decimal places.)
(e) Can we support the claim that the mean Option 1 loading time is less than the mean Option 2
loading time for the airline's flights from LGB to SFO?
Yes No
Explanation
Check
|x
P
06
<Q
X
3
0=0 O≤0 ☐≥0
0#0 0<0 0>0
X
Ś ?
2022 McGraw Hill LLC. All Rights Reserved.
Terms of Use | Privacy Center | Accessibility
Transcribed Image Text:An airline is trying two new boarding procedures, Option 1 and Option 2, to load passengers onto their Long Beach (LGB) to San Francisco (SFO) flights. Since Option 1 has more automation, the airline suspects that the mean Option 1 loading time is less than the mean Option 2 loading time. To see if this is true, the airline selects a random sample of 280 flights from LGB to SFO using Option 1 and records their loading times. The sample mean is found to be 17.7 minutes, with a sample standard deviation of 4.3 minutes. They also select an independent random sample of 230 flights from LGB to SFO using Option 2 and record their loading times. The sample mean is found to be 18.3 minutes, with a sample standard deviation of 3.5 minutes. Since the sample sizes are quite large, it is assumed that the population standard deviation of the loading times using Option 1 and the loading times using Option 2 can be estimated to be the sample standard deviation values given above. At the 0.10 level of significance, is there sufficient evidence to support the claim that the mean Option 1 loading time, μ₁ is less than the mean Option 2 loading time, μ₂, for the airline's flights from LGB to SFO? Perform a one-tailed test. Then complete the parts below. I Carry your intermediate computations to at least three decimal places. (If necessary, consult a list of formulas.) [ 5 (a) State the null hypothesis Ho and the alternative hypothesis H₁. μ O Aa S Ho H₁ : 0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) 0 (d) Find the critical value at the 0.10 level of significance. (Round to three or more decimal places.) (e) Can we support the claim that the mean Option 1 loading time is less than the mean Option 2 loading time for the airline's flights from LGB to SFO? Yes No Explanation Check |x P 06 <Q X 3 0=0 O≤0 ☐≥0 0#0 0<0 0>0 X Ś ? 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility
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