An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are enual. Complete narts (a) and (h) 1.39 No candy Two candies H2 H1 33 18.13 33 20.78 2.45 The test statistic, t, is -5.40. (Kound to two decimal places as needed.) The P-value is (Round to three decimal places as needed.)
An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are enual. Complete narts (a) and (h) 1.39 No candy Two candies H2 H1 33 18.13 33 20.78 2.45 The test statistic, t, is -5.40. (Kound to two decimal places as needed.) The P-value is (Round to three decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:**Experiment on Candy and Tips**
An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are provided below along with the sample sizes. Assume that the two samples are independent simple random samples, chosen from normally distributed populations, and do not presume equal population standard deviations.
### Data Table
| | Sample (n) | Mean (x̅) | Standard Deviation (s) |
|---------------|------------|-----------|------------------------|
| No Candy | 33 | 18.13 | 1.39 |
| Two Candies | 33 | 20.78 | 2.45 |
### Hypothesis
- **Null Hypothesis (H₀):** μ₁ = μ₂
- **Alternative Hypothesis (H₁):** μ₁ ≠ μ₂
### Test Statistic
The test statistic is calculated as \( t = 5.40 \) (rounded to two decimal places).
### P-Value
Calculate the P-value to three decimal places as needed.
This content guides through the process of hypothesis testing to explore the relationship between candy offerings and tipping behavior.
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