A research scientist is assessing the effectiveness of a new nasal spray in releasing nasal congestion. Test subjects used the nasal spray and then reported how long it took for their congestion to clear up. The sample of 25 subjects is normally distributed with a mean time of 20.0 minutes with a standard deviation of 3.0 minutes. Answer the following; 1. The mean of a sampling distribution based on this data is [ Select] 2. The standard error of the mean for a sampling distribution based on this data is 0.77 3. The shape of the sampling distribution based on this data will be [ Select] than the original (raw) distribution. 4. For a 90% confidence interval, the margin of error is 1.36

A research scientist is assessing the effectiveness of a new nasal spray in releasing nasal congestion. Test subjects used the nasal spray and then reported how long it took for their congestion to clear up. The sample of 25 subjects is normally distributed with a mean time of 20.0 minutes with a standard deviation of 3.0 minutes. Answer the following; 1. The mean of a sampling distribution based on this data is [ Select] 2. The standard error of the mean for a sampling distribution based on this data is 0.77 3. The shape of the sampling distribution based on this data will be [ Select] than the original (raw) distribution. 4. For a 90% confidence interval, the margin of error is 1.36

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

please answer questions 1-4 in picture and circle answers for each.

1) is it A) cant be determined, B) 20.0, C) 32.0, or D)23.5

2) ???

3) is it A) more uniform, B) wider (more variability), or C) narrower (less variability)

4) ???

A research scientist is assessing the effectiveness of a new nasal spray in releasing nasal congestion. Test
subjects used the nasal spray and then reported how long it took for their congestion to clear up. The
sample of 25 subjects is normally distributed with a mean time of 20.0 minutes with a standard deviation
of 3.0 minutes.
Answer the following:
1. The mean of a sampling distribution based on this data is ( Select]
2. The standard error of the mean for a sampling distribution based on this data is 0.77
3. The shape of the sampling distribution based on this data will be [ Select]
than
the original (raw) distribution.
4. For a 90% confidence interval, the margin of error is 1.36

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