A graphing calculator is recommended.
For the limit
lim x → 2 (x3 − 2x + 4) = 8
illustrate the definition by finding the largest possible values of δ that correspond to ε = 0.2 and ε = 0.1. (Round your answers to four decimal places.)
| ε = 0.2 | δ = |
| ε = 0.1 | δ = |
In: Math
Use the information below to produce the Simple Exponential Smoothing forecast assuming Alpha=0.3. Enter period 4's forecasted value below. The initialization value for period 1 is given as the actual value for period 1. Round your answer to two decimal places (e.g., 1.23).
Alpha=0.3
| Period | X | SES |
| 1 | 1.4 | 1.4 |
| 2 | 7.9 | |
| 3 | 1.5 | |
| 4 | ? |
In: Economics
Are the event “Political Affiliation” and “views on tariff” independent evets? Use statistical evidence to justify your answer.
|
Opinion
|
||||
|
Political Affiliation |
F |
O |
U |
Total |
|
Democrat (D) |
0.12 |
0.09 |
0.07 |
0.28 |
|
Republican (R) |
0.16 |
0.12 |
0.14 |
0.42 |
|
Independent (I) |
0.04 |
0.03 |
0.06 |
0.13 |
|
Green (G) |
0.08 |
0.06 |
0.03 |
0.17 |
|
Total |
0.4 |
0.3 |
0.3 |
1 |
In: Statistics and Probability
Suppose you want to determine the rate law that governs the kinetics of the reaction A+Bà products, carried out in the presence of catalyst C. you perform measurements of initial reaction velocities on four different mixtures of starting materials and obtain the following results:
Expt. # [A]0 [B]0 [C]0 v0
1 0.4 0.3 0.6 0.6
2 1.2 0.3 0.6 1.79
3 0.4 0.3 1.8 5.41
4 1.2 0.9 0.6 1.79
where the initial concentrations are expressed mold m-3, the initial reaction velocities are expressed in mol dm-3s-1 and the v0 data was obtained at 298K. Use these results to determine the differential rate law for the kinetics of the reaction and also evaluate the relevant rate constant.
In: Chemistry
Debby’s Dance Studios is considering the purchase of new sound
equipment that will enhance the popularity of its aerobics dancing.
The equipment will cost $24,400. Debby is not sure how many members
the new equipment will attract, but she estimates that her
increased annual cash flows for each of the next five years will
have the following probability distribution. Debby’s cost of
capital is 14 percent. Use Appendix D for an approximate answer but
calculate your final answers using the formula and financial
calculator methods.
| Cash Flow | Probability | ||||||
| $ | 4,360 | 0.3 | |||||
| 5,770 | 0.3 | ||||||
| 8,230 | 0.1 | ||||||
| 10,710 | 0.3 | ||||||
b. What is the expected net present value?
(Negative amount should be indicated by a minus sign. Do
not round intermediate calculations and round your answer to 2
decimal places.)
Net present value ____
In: Finance
Many investors and financial analysts believe the Dow Jones
Industrial Average (DJIA) gives a good barometer of the overall
stock market. On January 31, 2006, 9 of the 30 stocks making up the
DJIA increased in price (The Wall Street Journal, February 1,
2006). On the basis of this fact, a financial analyst claims we can
assume that 30% of the stocks traded on the New York Stock Exchange
(NYSE) went up the same day.
A sample of 53 stocks traded on the NYSE that day showed that 21
went up.
You are conducting a study to see if the proportion of stocks that
went up is is significantly more than 0.3. You use a significance
level of α=0.005α=0.005.
What is the test statistic for this sample? (Report answer accurate
to three decimal places.)
test statistic = ______
What is the p-value for this sample? (Report answer accurate to
four decimal places.)
p-value = _______
The p-value is...
A) less than (or equal to) αα
B) greater than αα
This test statistic leads to a decision to...
A) reject the null
B)accept the null
C)fail to reject the null
As such, the final conclusion is that...
A) There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3.
B) There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3.
C) The sample data support the claim that the proportion of stocks that went up is is more than 0.3.
D) There is not sufficient sample evidence to support the claim that the proportion of stocks that went up is is more than 0.3.
In: Statistics and Probability
Many investors and financial analysts believe the Dow Jones
Industrial Average (DJIA) gives a good barometer of the overall
stock market. On January 31, 2006, 9 of the 30 stocks making up the
DJIA increased in price (The Wall Street Journal, February 1,
2006). On the basis of this fact, a financial analyst claims we can
assume that 30% of the stocks traded on the New York Stock Exchange
(NYSE) went up the same day.
A sample of 50 stocks traded on the NYSE that day showed that 5
went up.
You are conducting a study to see if the proportion of stocks that
went up is is significantly less than 0.3. You use a significance
level of α=0.10α=0.10.
What is the test statistic for this sample? (Report answer accurate
to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to
four decimal places.)
p-value =
The p-value is...
This test statistic leads to a decision to...
As such, the final conclusion is that...
In: Statistics and Probability
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day. A sample of 66 stocks traded on the NYSE that day showed that 10 went up. You are conducting a study to see if the proportion of stocks that went up is is significantly less than 0.3. You use a significance level of α = 0.001 α=0.001 . What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) α α greater than α α This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is less than 0.3. There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is less than 0.3. The sample data support the claim that the proportion of stocks that went up is is less than 0.3. There is not sufficient sample evidence to support the claim that the proportion of stocks that went up is is less than 0.3.
In: Statistics and Probability
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day. A sample of 69 stocks traded on the NYSE that day showed that 25 went up. You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of α = 0.05 α = 0.05 .
What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value = The p-value is... less than (or equal to) α α greater than α α This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3. There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3. The sample data support the claim that the proportion of stocks that went up is is more than 0.3. There is not sufficient sample evidence to support the claim that the proportion of stocks that went up is is more than 0.3.
In: Statistics and Probability
Many investors and financial analysts believe the Dow Jones
Industrial Average (DJIA) gives a good barometer of the overall
stock market. On January 31, 2006, 9 of the 30 stocks making up the
DJIA increased in price (The Wall Street Journal, February 1,
2006). On the basis of this fact, a financial analyst claims we can
assume that 30% of the stocks traded on the New York Stock Exchange
(NYSE) went up the same day.
A sample of 62 stocks traded on the NYSE that day showed that 27
went up.
You are conducting a study to see if the proportion of stocks that
went up is is significantly more than 0.3. You use a significance
level of α=0.10α=0.10.
What is the test statistic for this sample? (Report answer accurate
to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to
four decimal places.)
p-value =
The p-value is...
This test statistic leads to a decision to...
As such, the final conclusion is that...
In: Math