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Problem #1: We would like to determine whether the true mean pH level of a lake differs from 7.4. Lake pH levels are known to follow a Normal distribution. We select a random sample of water specimens from random locations in the lake. The sample mean pH level is calculated to be 6.5 and the standard deviation is 0.8. Problem = 1: A 95% confidence interval for the true mean is found to be (4.6.8.4). What would the appropriate conclusion be based on this interval? (A) Since 7.4 falls inside the interval, we reject Ho at the 5% level of significance. (B) Since 6.5 falls inside the interval, we reject Ho at the 5% level of significance. (C) Since 6.5 falls inside the interval, we reject Ho at the 2.5% level of significance. (D) Since 7.4 falls inside the interval, we fail reject Ho at the 2.5% level of significance. (E) Since 7.4 falls inside the interval, we reject Ho at the 2.5% level of significance. (F) Since 6.5 falls inside the interval, we fail to reject Ho at the 5% level of significance. (G) Since 7.4 falls inside the interval, we fail to reject Ho at the 5% level of significance. (H) Since 6.5 falls inside the interval, we fail reject Ho at the 2.5% level of significance. Select

Problem #1: We would like to determine whether the true mean pH level of a lake differs from 7.4. Lake pH levels are known to follow a Normal distribution. We select a random sample of water specimens from random locations in the lake. The sample mean pH level is calculated to be 6.5 and the standard deviation is 0.8. Problem = 1: A 95% confidence interval for the true mean is found to be (4.6.8.4). What would the appropriate conclusion be based on this interval? (A) Since 7.4 falls inside the interval, we reject Ho at the 5% level of significance. (B) Since 6.5 falls inside the interval, we reject Ho at the 5% level of significance. (C) Since 6.5 falls inside the interval, we reject Ho at the 2.5% level of significance. (D) Since 7.4 falls inside the interval, we fail reject Ho at the 2.5% level of significance. (E) Since 7.4 falls inside the interval, we reject Ho at the 2.5% level of significance. (F) Since 6.5 falls inside the interval, we fail to reject Ho at the 5% level of significance. (G) Since 7.4 falls inside the interval, we fail to reject Ho at the 5% level of significance. (H) Since 6.5 falls inside the interval, we fail reject Ho at the 2.5% level of significance. Select

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Problem #1: We would like to determine whether the true mean pH level of a lake differs from 7.4. Lake pH levels are known to follow a Normal distribution. We select a random sample of water specimens from random locations in the lake. The sample mean pH level is calculated to be 6.5 and the standard deviation is 0.8. Problem #1: A 95% confidence interval for the true mean is found to be (4.6,8.4). What would the appropriate conclusion be based on this interval? (A) Since 7.4 falls inside the interval, we reject Ho at the 5% level of significance. (B) Since 6.5 falls inside the interval, we reject Ho at the 5% level of significance. (C) Since 6.5 falls inside the interval, we reject Ho at the 2.5% level of significance. (D) Since 7.4 falls inside the interval, we fail reject Ho at the 2.5% level of significance. (E) Since 7.4 falls inside the interval, we reject Ho at the 2.5% level of significance. (F) Since 6.5 falls inside the interval, we fail to reject Ho at the 5% level of significance. (G) Since 7.4 falls inside the interval, we fail to reject Ho at the 5% level of significance. (H) Since 6.5 falls inside the interval, we fail reject Ho at the 2.5% level of significance. Select
Transcribed Image Text:Problem #1: We would like to determine whether the true mean pH level of a lake differs from 7.4. Lake pH levels are known to follow a Normal distribution. We select a random sample of water specimens from random locations in the lake. The sample mean pH level is calculated to be 6.5 and the standard deviation is 0.8. Problem #1: A 95% confidence interval for the true mean is found to be (4.6,8.4). What would the appropriate conclusion be based on this interval? (A) Since 7.4 falls inside the interval, we reject Ho at the 5% level of significance. (B) Since 6.5 falls inside the interval, we reject Ho at the 5% level of significance. (C) Since 6.5 falls inside the interval, we reject Ho at the 2.5% level of significance. (D) Since 7.4 falls inside the interval, we fail reject Ho at the 2.5% level of significance. (E) Since 7.4 falls inside the interval, we reject Ho at the 2.5% level of significance. (F) Since 6.5 falls inside the interval, we fail to reject Ho at the 5% level of significance. (G) Since 7.4 falls inside the interval, we fail to reject Ho at the 5% level of significance. (H) Since 6.5 falls inside the interval, we fail reject Ho at the 2.5% level of significance. Select
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