We want to compare the daily stock return for Proctor & Gamble and PG&E Unilever. Using the provided data, assuming the samples are random sample and independent, at the .02 significance level can you claim that the monthly returns are different? 1. State the null and alternative hypothesis Hop=0 2. Find the test statistic PG: 1.6452141 UL: 1.377804 3. Find the number of degrees of freedom 2515 4. Find the critical values PG: 2.3278 UL: 2.3278 5. Find the confidence interval PG: (-0.015112854, 0.087961502) UL 6. Find the P-value PG: 0.1001 UL: 0.1684 7. What can you conclude?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 10E
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Answer# 7 based on answers from 1-6
We want to compare the daily stock return for Proctor & Gamble and PG&E Unilever. Using the
provided data, assuming the samples are random sample and independent, at the .02
significance level can you claim that the monthly returns are different?
1. State the null and alternative hypothesis
Hop=0
2. Find the test statistic
PG: 1.6452141
UL: 1.377804
3. Find the number of degrees of freedom
2515
4. Find the critical values
PG: 2.3278
UL: 2.3278
5. Find the confidence interval
PG: (-0.015112854, 0.087961502)
UL
6. Find the P-value
PG: 0.1001
UL: 0.1684
7. What can you conclude?
Transcribed Image Text:We want to compare the daily stock return for Proctor & Gamble and PG&E Unilever. Using the provided data, assuming the samples are random sample and independent, at the .02 significance level can you claim that the monthly returns are different? 1. State the null and alternative hypothesis Hop=0 2. Find the test statistic PG: 1.6452141 UL: 1.377804 3. Find the number of degrees of freedom 2515 4. Find the critical values PG: 2.3278 UL: 2.3278 5. Find the confidence interval PG: (-0.015112854, 0.087961502) UL 6. Find the P-value PG: 0.1001 UL: 0.1684 7. What can you conclude?
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