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Statistics Exercises with Solutions and Interpretations

Guidelines for Statistics Examination 2, including constructing confidence intervals for means and making assumptions about the population of interest.

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Added on  2023-06-10

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Get solved exercises on Statistics with step-by-step solutions and interpretations. The exercises cover confidence intervals, ANOVA, Z-test, and more. The assumptions needed to construct the confidence intervals are also mentioned. The level of significance and test applied are also provided for each exercise. The output is in JSON format.

Statistics Exercises with Solutions and Interpretations

Guidelines for Statistics Examination 2, including constructing confidence intervals for means and making assumptions about the population of interest.

   Added on 2023-06-10

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STATISTICS
Statistics
Name of the student:
Name of the university:
Course ID:
Statistics Exercises with Solutions and Interpretations_1
1STATISTICS
Table of Contents
Exercise 1:.......................................................................................................................................2
Exercise 2:.......................................................................................................................................3
Exercise 3:.......................................................................................................................................4
Exercise 4:.......................................................................................................................................6
References:......................................................................................................................................8
Statistics Exercises with Solutions and Interpretations_2
2STATISTICS
Part 1.
Exercise 1:
Data
114 112 123 111 109 103
112 113 107 129 108 126
131 129 126 115 123 108
131 115 134 133 132 114
104 127 128 137 114 139
128 117 121 110 141 121
138 140 122 130 115 102
Population Mean = 121.2381
Confidence
intervals 90%
Confidence
intervals 95%
Number of Sample = 42
Confidence
intervals 99%
Standard deviation = 11.08022
Standard error = 1.709715 t(90%) 1.644854
t(95%) 1.959964
t(99%) 2.575829
1) Upper 90% confidence limit = 124.0503
Lower 90% confidence limit = 118.4259
2) Upper 95% confidence limit = 124.5891
Lower 95% confidence limit = 117.8871
3) Upper 99% confidence limit = 125.642
Lower 99% confidence limit = 116.8342
The population mean is 121.2381.
1. 90% confidence interval of the population mean =
Upper 90% confidence limit = 124.0503.
Lower 90% confidence limit = 118.4259.
2. 95% confidence interval of the population mean =
Statistics Exercises with Solutions and Interpretations_3

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