MCQs-Hints_MATH-221

MCQs-Hints_MATH-221 - Standard Error of the Mean...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Qn. 20 Page 1 Z Test of Hypothesis for the Proportion Data 0.2 Level of Significance 0.05 Number of Successes 75 Sample Size 300 Intermediate Calculations Sample Proportion 0.25 Standard Error 0.0230940108 Z Test Statistic 2.1650635095 Upper-Tail Test Upper Critical Value 1.644853627 0.015191411 Reject the null hypothesis Null Hypothesis p = p -Value
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Qn. 10 Page 2 Z Test of Hypothesis for the Mean Data 42 Level of Significance 0.05 Population Standard Deviation 0.5 Sample Size 100 Sample Mean 41.6 Intermediate Calculations Standard Error of the Mean 0.05 Z Test Statistic -8 Lower-Tail Test Lower Critical Value -1.644853627 6.22096057E-016 Reject the null hypothesis Null Hypothesis μ = p -Value
Background image of page 2
Qn. 9 Page 3 t Test for Hypothesis of the Mean Data 230 Level of Significance 0.025 Sample Size 10 Sample Mean 231.8 Sample Standard Deviation 2.1499353995 Intermediate Calculations
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Standard Error of the Mean 0.6798692685 Degrees of Freedom 9 2.6475678244 Upper-Tail Test Calculations Area Upper Critical Value 2.2621571628 For one-tailed tests: 0.0132909803 TDIST value 0.01329098 Reject the null hypothesis 1-TDIST value 0.98670902 Null Hypothesis = t Test Statistic p-Value Shelf life (Days) 231 233 232 233 228 231 234 229 235 232 Wal-Mart Meijer Toys R Us 15 18 20 Anova: Single Factor 12 17 19 12 14 16 SUMMARY 14 15 20 Groups Count Sum Average Variance 13 17 19 Wal-Mart 5 66 13.2 1.7 Meijer 5 81 16.2 2.7 Toys R Us 5 94 18.8 2.7 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 78.533333333 2 39.2666666667 16.591549296 0.00035094 3.8852938347 Within Groups 28.4 12 2.3666666667 Total 106.93333333 14...
View Full Document

Page1 / 5

MCQs-Hints_MATH-221 - Standard Error of the Mean...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online