Executive Summary:
Par, Inc has developed a new coating designed to resist cuts and provide a more durable ball. One concern for Par, Inc was the effect of the new coating on driving distances. Par would like the new cut-resistant ball to offer driving distances comparable to those of the current-model golf ball. To compare the driving distances for the two balls, 40 balls of both new and current models were subjected to distance test. The testing was performed with a mechanical hitting machine so that any difference between the mean distances for the two models could be attributed to a difference in the two models.

Based on the sample studied of 80 golf balls both current and new models, I have done the following analysis: 1. Formulated a hypothesis test for Par’s comparison of the driving distances of the current and new golf balls. 2. Analyzed data to provide a hypothesis testing conclusion and recommendation. 3. Provided descriptive statistical summaries of the data for each model 4. Calculated 95% confidence interval for the population mean of each model, and the difference between the means of the two populations. 5. Discuss if a larger sample size was needed with the golf balls

First off, I’ve conducted an hypothesis test for Par, Inc comparison and the null/alternative hypothesis are as follow:

H0: µ1 - µ2 = 0 (they are the same)
Ha: µ1 - µ2 ≠ 0 (they are not the same)

The test I will be conducting is a two-tail test.

The P-Value for this test is .01836 and because it is greater than alpha of .05, thus we do not reject the null hypothesis. My recommendation to Par, Inc is to put the new coating for the golf balls to production.

Descriptive Statistic for both models are as follows:

...This report is case study of Par, Inc.
Par, Inc., is a manufacturer of golf equipment. The company wants to check whether this new type of golf ball is comparable to the old ones. Therefore they did a test with 40 samples of both new balls and old ones. The testing was performed with a mechanical hitting machine so that any difference between the mean distances for the two models could be measure to evaluate the difference...

...Case #1
Par, Inc.
Date: October 8th 2011
Question 1
Formulate and present the rationale for a hypothesis test that Par could use to compare the driving distances of the current and new golf balls
Ans:
The rational is that Par, Inc. is concerned with making sure that the market share or the new ball is comparable to the previous with the new cut-resistant, longer lasting ball. We need to compare the...

...CaseProblem: Par, Inc.
Section I: Summary
Par, Inc., a major manufacturer of golf equipment believes that a cut-resistant, longer lasting golf ball could increase their market share. In addition to the requirement that the ball be longer lasting, they wanted to ensure that the new coating would not reduce driving distances, and would be comparable to the current product.
Section II: Relevant...

...The management at ParInc. believes that with the introduction of a cut-resistant, longer-lasting golf ball could increase their market share. A new golf ball coating designed to resist cuts and provide a more durable ball have been developed and tested. A sample of 40 balls of both the new and current models were tested with a mechanical hitting machine so that any difference between the mean distances for the two models could be attributed to a difference in the...

...Here is the report about Par, Inc., is a major manufacturer of golf equipment test whether the new ball drive longer distance than the current model. To compare the driving distances for the two balls,
40 simple tests both of new and current models were subjected to distance tests. According to the data, we got the information we need for a hypothesis test as follow:
| Current | New |
Means | 269.42 | 266.67 |
Count | 40 | 40 |...

...BLADE INC. CASE
1. What are the advantages Blades could gain from importing from and/or exporting to a foreign country such as Thailand? Ans: The advantages Blades could gain from importing from and/or exporting to Thailand could be Decrease their cost of goods sold, and increase Blades’ net income since rubber and plastic are cheaper when imported from a foreign country such as Thailand. Due to its superior production process Thai firms could not duplicate the...

...
Introduction
The purpose of this report is to show if the new golf ball coating design does induced resist cuts and provide a more durable ball.
Hypothesis
µ1 is the mean driving distance of currently produced golf balls
µ2 is the mean driving distance of newly designed golf balls
Null hypothesis (H0): µ1- µ2 ≤ 0
Alternate hypothesis (Ha): µ1- µ2 > 0
Analysis
The sample mean for current golf balls is 270.275, while the new golf balls have a sample mean of 267.50. So on average...

...CaseProblem: Blades, Inc.
1. One point of concern for you is that there is a tradeoff between the higher interest rates in Thailand and the delayed conversion of baht into dollars. Explain what this means.
ANSWER: If the net baht-denominated cash flows are converted into dollars today, Blades is not subject to any future depreciation of the baht that would result in less dollar cash flows.
2. If the net baht received from the...

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