Solved

Swimming Average Narrative
Historically, the Average Time It Takes Jessica μ\mu

Question 23

Essay

Swimming Average Narrative
Historically, the average time it takes Jessica to swim the 200 m butterfly is 148.4 seconds. Jessica would like to know if her average time has changed. She records her time on 50 randomly selected occasions and computes the mean to be 147.8 seconds with a standard deviation of 2.3 seconds.
-Let μ\mu denote the true average delivery time of a letter from a specific carrier. For a large-sample z-test of H0: μ\mu = 3 versus Ha: μ\mu≠\neq 3, find the p-value associated with each of the given values of the test statistic, and state whether each p-value will lead to a rejection of the null hypothesis when performing a level 0.05 test.
a. Swimming Average Narrative Historically, the average time it takes Jessica to swim the 200 m butterfly is 148.4 seconds. Jessica would like to know if her average time has changed. She records her time on 50 randomly selected occasions and computes the mean to be 147.8 seconds with a standard deviation of 2.3 seconds. -Let \mu denote the true average delivery time of a letter from a specific carrier. For a large-sample z-test of H<sub>0</sub>: \mu = 3 versus H<sub>a</sub>: \mu\neq 3, find the p-value associated with each of the given values of the test statistic, and state whether each p-value will lead to a rejection of the null hypothesis when performing a level 0.05 test. a. 2.16 b. 0.38 c. -2.81 d. 1.07 e. -0.68 2.16
b. Swimming Average Narrative Historically, the average time it takes Jessica to swim the 200 m butterfly is 148.4 seconds. Jessica would like to know if her average time has changed. She records her time on 50 randomly selected occasions and computes the mean to be 147.8 seconds with a standard deviation of 2.3 seconds. -Let \mu denote the true average delivery time of a letter from a specific carrier. For a large-sample z-test of H<sub>0</sub>: \mu = 3 versus H<sub>a</sub>: \mu\neq 3, find the p-value associated with each of the given values of the test statistic, and state whether each p-value will lead to a rejection of the null hypothesis when performing a level 0.05 test. a. 2.16 b. 0.38 c. -2.81 d. 1.07 e. -0.68 0.38
c. Swimming Average Narrative Historically, the average time it takes Jessica to swim the 200 m butterfly is 148.4 seconds. Jessica would like to know if her average time has changed. She records her time on 50 randomly selected occasions and computes the mean to be 147.8 seconds with a standard deviation of 2.3 seconds. -Let \mu denote the true average delivery time of a letter from a specific carrier. For a large-sample z-test of H<sub>0</sub>: \mu = 3 versus H<sub>a</sub>: \mu\neq 3, find the p-value associated with each of the given values of the test statistic, and state whether each p-value will lead to a rejection of the null hypothesis when performing a level 0.05 test. a. 2.16 b. 0.38 c. -2.81 d. 1.07 e. -0.68 -2.81
d. Swimming Average Narrative Historically, the average time it takes Jessica to swim the 200 m butterfly is 148.4 seconds. Jessica would like to know if her average time has changed. She records her time on 50 randomly selected occasions and computes the mean to be 147.8 seconds with a standard deviation of 2.3 seconds. -Let \mu denote the true average delivery time of a letter from a specific carrier. For a large-sample z-test of H<sub>0</sub>: \mu = 3 versus H<sub>a</sub>: \mu\neq 3, find the p-value associated with each of the given values of the test statistic, and state whether each p-value will lead to a rejection of the null hypothesis when performing a level 0.05 test. a. 2.16 b. 0.38 c. -2.81 d. 1.07 e. -0.68 1.07
e. Swimming Average Narrative Historically, the average time it takes Jessica to swim the 200 m butterfly is 148.4 seconds. Jessica would like to know if her average time has changed. She records her time on 50 randomly selected occasions and computes the mean to be 147.8 seconds with a standard deviation of 2.3 seconds. -Let \mu denote the true average delivery time of a letter from a specific carrier. For a large-sample z-test of H<sub>0</sub>: \mu = 3 versus H<sub>a</sub>: \mu\neq 3, find the p-value associated with each of the given values of the test statistic, and state whether each p-value will lead to a rejection of the null hypothesis when performing a level 0.05 test. a. 2.16 b. 0.38 c. -2.81 d. 1.07 e. -0.68 -0.68

Correct Answer:

verifed

Verified

a. p-value = 2(0.5 - 0.4846) = 0.0308. R...

View Answer

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q18: Transport Quebec repaired hundreds of bridges

Q19: Federal Votes Narrative
A Conservative party candidate in

Q20: A sample of size 80 is

Q21: University Housing Costs Narrative
A large university claims

Q22: Average Childcare Costs Narrative
The public relations officer

Q24: University Housing Costs Narrative Which error has

Q25: Laptop Battery Charge Time Narrative
A computer laboratory

Q26: Copper Pipes Narrative
A manufacturer of copper

Q27: Average Childcare Costs Narrative
The public relations officer

Q28: Copper Pipes Narrative
A manufacturer of copper pipes

Unlock this Answer For Free Now!

View this answer and more for free by performing one of the following actions

qr-code

Scan the QR code to install the App and get 2 free unlocks

upload documents

Unlock quizzes for free by uploading documents