2f. (Data calories.txt only using treatment 1 sample) Using the results obtained in the previous questions, obtain a 98% confidence interval for the average of calories consumed by children participating in meal preparation (treatment 1). What is the lower bound? Use one decimal. 2g. (Data calories.txt only using treatment 1 sample) Using the results obtained in the previous questions, obtain a 98% confidence interval for the average of calories consumed by children participating in meal preparation (treatment 1). What is the upper bound? Use one decimal.
2f. (Data calories.txt only using treatment 1 sample) Using the results obtained in the previous questions, obtain a 98% confidence interval for the average of calories consumed by children participating in meal preparation (treatment 1). What is the lower bound? Use one decimal. 2g. (Data calories.txt only using treatment 1 sample) Using the results obtained in the previous questions, obtain a 98% confidence interval for the average of calories consumed by children participating in meal preparation (treatment 1). What is the upper bound? Use one decimal.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
part F G
Transcribed Image Text:"Trt" "Calories"
"1" 1 435.16
"2" 1 338.99
"3" 1 488.73
"4" 1 590.28
"5" 1 582.59
"6" 1 635.21
"7" 1 249.86
"8" 1 441.66
"9" 1 572.43
"10" 1 357.78
"11" 1 396.79
"12" 1 298.38
"13" 1 282.99
"14" 1 368.51
"15" 1 388.59
"16" 1 256.32
"17" 1 408.82
"18" 1 424.94
"19" 1 477.96
"20" 1 428.74
"21" 1 432.52
"22" 1 428.27
"23" 1 596.79
"24" 1 456.3
"25" 1 446.38
"26" 2 414.61
"27" 2 503.46
"28" 2 425.22
"29" 2 288.77
"30" 2 184
"31" 2 299.73
"32" 2 350.65
"33" 2 394.94
"34" 2 261.55
"35" 2 295.28
"36" 2 139.69
"37" 2 462.78
"38" 2 179.59
"39" 2 301.75
"40" 2 436.58
"41" 2 371.39
"42" 2 469.02
"43" 2 378.09
"44" 2 287.31
"45" 2 448.55
"46" 2 332.64
"47" 2 403.98
2f. (Data calories.txt only using treatment 1 sample) Using the results obtained in the previous
questions, obtain a 98% confidence interval for the average of calories consumed by children
participating in meal preparation (treatment 1). What is the lower bound? Use one decimal.
2g. (Data calories.txt only using treatment 1 sample) Using the results obtained in the previous
questions, obtain a 98% confidence interval for the average of calories consumed by children
participating in meal preparation (treatment 1). What is the upper bound? Use one decimal.
Transcribed Image Text:2a. (Data calories.txt) For this problem, focus on the random sample obtained using only treatment
1. What is the average number of calories consumed for children in this group? Use 2 decimals
Hint: Don't forget to only use the subset of children that participated in meal prep
aration.
2b. (Data calories.txt only using treatment 1 sample) Based on these data, obtain the standard
error for the average of calories consumed by children participating in meal preparation. Enter the
value using two decimals.
Hint 2: The R command length() may be useful to find the appropriate sample size.
2c. (Data calories.txt only using treatment 1 sample) A researcher would like to show that children
participating in meal preparation (treatment 1) consume more than 400 calories, on average. Use
the results obtained in the previous two questions and obtained the test statistic. Enter it here
using two decimals.
2d. (Data calories.txt only using treatment 1 sample) A researcher would like to show that children
that help in meal preparation (treatment 1 only) consume more than 400 calories, on average. Use
the results obtained in the previous questions and obtained the p-value. Enter it here using three
decimals.
2e. (Data calories.txt only using treatment 1 sample) A researcher would like to show that children
participating in meal preparation (treatment 1) consume more than 400 calories, on average. Using
the results obtained in the previous questions, what is your conclusion? Select all that apply.
Hint 1: Use the generally accepted levels of significance discussed in chapter 29
Hint 2: Perhaps more than two options are appropriate
The result is non-significant
The result is significant
The result is highly significant
Reject the null hypothesis
Fail to reject the null hypothesis
We can conclude that less than half of children in the relevant group consume above the caloric intake goal.
We can conclude that more than half of children in the relevant group consume above the caloric intake
goal.
The results are inconclusive
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