Math Homework

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t-Test Two-Sample Assuming Equal Variances Student
t-Test: Two-Sample Assuming Equal Variances Student Group Dietitian Group Mean 78.88888889 69.11111111 Variance(NNN) NNN-NNNN330.8104575 Observations 18 18 Pooled Variance(NNN) NNN-NNNN Hypothesized M… read more
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You have two different teams of service technicians for two
You have two different teams of service technicians for two large hospitals that are about the same age with the same types of equipment. Recently you took data to determine the average repair time pe… read more
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You are given the following data. Test the claim that there
You are given the following data. Test the claim that there is a difference in the means of the two groups. Use = 0.05. Group A Group B = 1 = 10 = 0.4 = 0.3 = 40 = 57 · State the null and alternate hy… read more
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You are given the following data. Test the claim that there
You are given the following data. Test the claim that there is a difference in the means of the two groups. Use a=.01 Group A Group B x_1=3 x_2=5 s1=20 s2=11 n1=49 n2=75 -state the null and alternate … read more
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1. Two groups of ten sprinters run 100 meters. The times required
1. Two groups of ten sprinters run 100 meters. The times required by sprinters in the first group are as follows: 10.8 11.1 10.5 11.8 10.3 10.4 10.4 12.9 10.1 14.3 The times required by sprinters in t… read more
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Two groups of ten sprinters run 100 meters. The times required
Two groups of ten sprinters run 100 meters. The times required by sprinters in the first group are ad follows: 12:2 12:0 12:8 11:9 12:9 10:0 14:3 12:7 11:6 11:0 The times required by sprinters in the … read more
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Susan wo groups of ten sprinters run 100 meters. The times
Susan wo groups of ten sprinters run 100 meters. The times required by sprinters in the first group are as follows: 12.1 12.5 13.3 12.8 14.0 13.6 10.8 12.0 14.7 13.8 The times required by sprinters in… read more
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Twenty students randomly assigned to an experimental group
Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental g… read more
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In order to measure effect of a storewide sales campaign on
In order to measure effect of a storewide sales campaign on nonsale items, research director of a national supermarket chain took a random sample of 13 pairs of stores that were matched according to a… read more
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You are given the following data. Test the claim that there
You are given the following data. Test the claim that there is a difference in the means of the two groups. Use = 0.01. Group A Group B = 3 = 8 = 18 = 19 = 54 = 84 · State the null and alternate hypot… read more
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8. You are given the following data. Test the claim that there
8. You are given the following data. Test the claim that there is a difference in the means of the two groups. Use a = 0.01. Group A Group B sample mean1 = 3 sample mean2 = 8 s1 = 18 s2 = 19 n1= 54 n2… read more
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7. Two groups of ten sprinters run 100 meters. The times required
7. Two groups of ten sprinters run 100 meters. The times required by sprinters in the first group are as follows: 12.2 12.0 12.8 11.9 12.9 10.0 14.3 12.7 11.6 11.0 The times required by sprinters in t… read more
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Please complete the following using the 5 steps of hypothesis
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In what ways is the t distribution similar to the standard
In what ways is the t distribution similar to the standard normal distribution? In what ways is the t distribution different from the standard normal distribution? How does the formula for the t test … read more
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3.The number of sit-ups that a person can do in one minute,
3.The number of sit-ups that a person can do in one minute, both before and after a physical fitness course was recorded. The data is shown below for 10 randomly selected participants. Is there suffic… read more
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By the end of Day 4, complete and submit your answers to the
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A group of seven students were surveyed about the time they
A group of seven students were surveyed about the time they spent studying for a statistics exam. The sample mean study time was 4.20 hours with a sample standard deviation of 1.67 hours. If you const… read more
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Question for Greg Michaelson DUE 3/21/09 1. In what ways is
Question for Greg Michaelson DUE 3/21/09 1. In what ways is the t distribution similar to the standard normal distribution? In what ways is the t distribution different from the standard normal distri… read more
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