hospita was concerned ou reducing its an me Alarge ed war me o o 26 minutes as s
ID: 3364430 • Letter: H
Question
hospita was concerned ou reducing its an me Alarge ed war me o o 26 minutes as set. A erimp ementing an m roven en ramework and p ocess, t sampe 1338 pat ents shows if vou test the null Typothesis the 0.1 0 level of 5gnncance is there evidence that the popul ion mean time is les5 th n 25 minutes? Stata tha nul and altamatN hypoth SAG the men at time was 22.03 mnu es, a s andard devl on o 6.7 mnutes. omp ele pars d) and b be . H1 25 H H22 Find thepvelu The prvalue is Type an integer or a decimal Round to three decimal places as needed B Re ect the nul hypothess. There is sufic ent s dence at thu 0 1d level f signncaro e that tno popustior mean weit 'me etnethan 25 marutes. C- Do nct reject the nullhypotes. There is insufficient evidence the 0.10 level of significance that the population mean wat time is greate. than 20 mmutes O D. Donct reject the nll hyposs. Thare Is Incutticlant avidenc at thc U.1D lavcl otskgnticarce tat the papulaion mcan wattimc lsssthan 25 mintcs . Inrprte meaning o the pal In thproolem. B c. D. The Pralue i thu probability th one acual mean mit time is 23.03 minutes or less. The p value i2 the probablity of genng I ha p-value ls the probablty that the actual mean aat time Is 2minutas ghen te sample mean wzit tlme "mple mean eat time cf 23.03 mi utes or less f the ctual mean wit me s 25 minutes 23 02 minutesExplanation / Answer
The statistical software output for this problem is:
One sample T summary hypothesis test:
: Mean of population
H0 : = 25
HA : < 25
Hypothesis test results:
Hence,
Hypotheses: Option B is correct.
tSTAT = -2.17
p - Value = 0.015
Is there sufficient evidence? Yes, Option A is correct.
b) Interpretation of p - value: Option C is correct.
Mean Sample Mean Std. Err. DF T-Stat P-value 23.03 0.90836025 337 -2.1687431 0.0154Related Questions
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