Question

Jump to level 1 Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 3 inches. The heights of 9 randomly selected students are 62, 68, 63, 62, 69, 61, 64 and 68. $\bar{x}$ = 3 Margin of error at 90% confidence level = .90 90% confidence interval = [63 Ex: 12.34] [smaller value, larger value] Check Next 1 2

Name: jump to level 1 suppose the mean height in inches of all 9th grade students at one high school is estimated the population standard deviation is 3 inches the heights of 9 randomly selected s 24766
Uploaded: 2023-04-18T04:46:20-08:00
Duration: 1 min 44 s
Channel: T. L.
Description: jump to level 1 suppose the mean height in inches of all 9th grade students at one high school is estimated the population standard deviation is 3 inches the heights of 9 randomly selected s 24766

          Jump to level 1
Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 3 inches. The heights of 9 randomly selected students are 62, 68, 63, 62, 69, 61, 64 and 68.
$\bar{x}$ = 3
Margin of error at 90% confidence level = .90
90% confidence interval = [63 Ex: 12.34]
[smaller value, larger value]
Check
Next
1
2

jump to level 1 suppose the mean height in inches of all 9th grade students at one high school is estimated the population standard deviation is 3 inches the heights of 9 randomly selected s 24766

Added by Christopher H.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert T. L.

04/18/2023

Step 1

First, let's list the given data: Population standard deviation ($\sigma$) = 3 inches Sample size (n) = 9 Heights of 9 randomly selected students: 62, 68, 63, 62, 69, 61, 64, 68 Step 1: Calculate the sample mean ($\bar{x}$). The sample mean is the sum of all Show more…

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Jump to level 1 Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 3 inches. The heights of 9 randomly selected students are 62, 68, 63, 62, 69, 61, 64 and 68. $\bar{x}$ = 3 Margin of error at 90% confidence level = .90 90% confidence interval = [63 Ex: 12.34] [smaller value, larger value] Check Next 1 2