Suppose that you are interested in estimating the average number of miles per gallon of gasoline your car can get. You calculate the miles per gallon for each of the next twenty-five times you fill the tank. Suppose that in truth, the values for your car are bell-shaped, with a mean of 20 miles per gallon and a standard deviation of 1. Find the possible sample means you are likely to get based on your sample of twenty-five observations. Consider the intervals into which 68%, 95%, and almost all of the potential sample means will fall, using the Empirical Rule. (Round all answers to the nearest thousandth.)
About 68% of possible sample means will be in the range between ___ and ____ .
About 95% of possible sample means will be in the range between ____ and ____ .
About 99.7% of possible sample means will be in the range between ____ and ____.
In: Math
Suppose that the national average for the math portion of the College Board's SAT is 513. The College Board periodically rescales the test scores such that the standard deviation is approximately 75. Answer the following questions using a bell-shaped distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
(a) What percentage of students have an SAT math score greater than 588?
___ %
(b) What percentage of students have an SAT math score greater than 663?
___ %
(c) What percentage of students have an SAT math score between 438 and 513?
___ %
(d) What is the z-score for a student with an SAT math score of 620?
____
(e) What is the z-score for a student with an SAT math score of 405?
____
In: Math
Suppose that the national average for the math portion of the College Board's SAT is 518. The College Board periodically rescales the test scores such that the standard deviation is approximately 100. Answer the following questions using a bell-shaped distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
| (a) | What percentage of students have an SAT math score greater than 618? |
| % | |
| (b) | What percentage of students have an SAT math score greater than 718? |
| % | |
| (c) | What percentage of students have an SAT math score between 418 and 518? |
| % | |
| (d) | What is the z-score for student with an SAT math score of 625? |
| (e) | What is the z-score for a student with an SAT math score of 415? |
In: Math
Suppose that the national average for the math portion of the College Board's SAT is 518. The College Board periodically rescales the test scores such that the standard deviation is approximately 50. Answer the following questions using a bell-shaped distribution and the empirical rule for the math test scores. If required, round your answers to two decimal places. (a) What percentage of students have an SAT math score greater than 568? % (b) What percentage of students have an SAT math score greater than 618? % (c) What percentage of students have an SAT math score between 468 and 518? % (d) What is the z-score for student with an SAT math score of 620? (e) What is the z-score for a student with an SAT math score of 405?
In: Math
At Burnt Mesa Pueblo, archaeological studies have used the method of tree-ring dating in an effort to determine when prehistoric people lived in the pueblo. Wood from several excavations gave a mean of (year) 1239 with a standard deviation of 43 years. The distribution of dates was more or less mound-shaped and symmetrical about the mean. Use the empirical rule to estimate the following.
(a) a range of years centered about the mean in which about 68%
of the data (tree-ring dates) will be found
between and A.D.
(b) a range of years centered about the mean in which about 95% of
the data (tree-ring dates) will be found
between and A.D.
(c) a range of years centered about the mean in which almost all
the data (tree-ring dates) will be found
between and A.D.
In: Math
12.
before applying the corporate tax rate, firms may deduct
a. wage payments
b. dividend payments to shareholders
c. depreciation allowances
d. a and c
13.
in canada, only realized capital gains are included in taxable income
a. true
b. false
c. uncertain
14.
consider the following statement. the best empirical evidence to date suggests the tax subsidies for certain accounts like RRSPs and the TFSAs encourages new savings. is this statement true or false, explain
16.
in the canadian PIT system, capital gains are
a. generally not associated with a "lock in effect"
b. treated exactly like the other sources of income
c. taxed differently than other sources of income
d. only realized death
dont need explanation besides number 14, thanks
In: Economics
At Burnt Mesa Pueblo, archaeological studies have used the method of tree-ring dating in an effort to determine when prehistoric people lived in the pueblo. Wood from several excavations gave a mean of (year) 1257 with a standard deviation of 38 years. The distribution of dates was more or less mound-shaped and symmetric about the mean. Use the empirical rule to estimate the following.
(a) a range of years centered about the mean in which about 68%
of the data (tree-ring dates) will be found
between and A.D.
(b) a range of years centered about the mean in which about 95% of
the data (tree-ring dates) will be found
between and A.D.
(c) a range of years centered about the mean in which almost all
the data (tree-ring dates) will be found
between and A.D.
In: Math
I bought a stock on 10/05/2018 for $150 and collected $5 on 11/23/2018 and another $5 on 5/23/2019 and another $6 on 11/23/2019. i sold it on 1/23/2020 for $175. what is the internal rate of return on the investment?
In: Finance
Stigler's insurance expense was $54,000 for 2019 and $48,000 for 2018. Prepaid insurance was $34,000 on Stigler Inc.’s December 31, 2019 balance sheet and $29,000 on their December 31, 2018 balance sheet. How much cash did Stigler pay for insurance during 2019?
In: Accounting
Jimbo (age 52) is single with no dependents. Jimbos adjusted gross income for 2018 is $201,000, which consists of his salary of $150,000 and long-term capital gain income of $51,000. What is the amount of net investment income- not tax income, if any, that jimbo will pay for 2018?
In: Accounting