There are 2,000 eligible voters in a precinct. Despite protests from knowledgeable persons that a sample size of 500 was too large in relation to the total, the 500 selected at random were asked to indicate whether they planned to vote for the Democratic incumbent or the Republican challenger. Of the 500 surveyed, 350 said they were going to vote for the Democratic incumbent. Using the 0.99 confidence coefficient, what is the confidence limits for the proportion who plan to vote for the Democratic incumbent?
Answer(s): C
Interval estimate can be found from p +/- z[p(1-p)/n]^0.5. Here we have n = 500, p = 350/500 = 0.7 and z = 2.58 (for 99%). Therefore 0.7 +/- 2.58*0.02049 and we get 0.647 and 0.7529.
Three defective electric toothbrushes were accidentally shipped to a drugstore by the manufacturer along with 17 nondefective ones. What is the probability that the first two electric toothbrushes sold will be returned to the drugstore because they are defective?
Answer(s): E
3/20*2/19 = 3/190
How many quarters will it take for an original $1,000 deposit to grow to be $2,000, if the deposit earns interest at 6% per year, compounded quarterly?
On the BAII Plus, press 1000 PV, 2000 +/- FV, 0 PMT, 6 divided by 4 = I/Y, then CPT N. On the HP12C, press 1000 PV, 2000 CHS FV, 0 PMT, 6 ENTER 4 divide i, then press n. HP12C answer is shown as 47. Answer should be in quarters, not years. Make sure the BAII Plus has the P/Y value set to 1.
What does a regression equation do?
The dependent variable is the variable Y which is being predicted by the X variable, the independent variable.The regression is written as Y' = a + bX. The letter "a" is the Y intercept and b is the slope of the line. Y' is the predicted value of Y given a specific value of X.
Under the null hypothesis, Ho, x = y. Under the alternative hypothesis, x does not equal y. If the critical z- statistic for the desired significance level is 1.68 and you find the z-statistic to be -3.2, you should:
Answer(s): B
Since the z-statistic is larger in magnitude than the critical value, you should reject the null hypothesis. Note that all the other alternatives loosely mean the same thing.
Share your comments for Test Prep CFA® LEVEL 1 exam with other users:
so challenging
17 should be d ,for morequery its scale out
nice question
yes.
good mateial
good practice exam
impressivre qustion
questions seem helpful
good content
question 21 answer is alerts
am preparing for exam
good one thanks
only got thru 5 questions, need more to evaluate
q26 should be b
the aaa triad in information security is authentication, accounting and authorisation so the answer should be d 1, 3 and 5.
need to attend this
these are free brain dumps i understand, how can one get free pdf
provide access
good morning
please upload the ncp-mci 6.5 dumps, really need to practice this one. thanks guys
question 16: https://help.salesforce.com/s/articleview?id=sf.care_console_overview.htm&type=5
yes i m prepared exam
my experience was great with this site as i studied for the ms-900 from here and got 900/1000 on the test. my main focus was on the tutorials which were provided and practice questions. thanks!
great course
very good question
question: 93 which statement is true regarding the result? sales contain 6 columns and values contain 7 columns so c is not right answer.
highly recommend just passed my exam.
great practice! thanks
anyone who wrote this exam recently?
kindly share the dump
could you please upload cfe fraud prevention and deterrence questions? it will be very much helpful.
this is really very very helpful for mcd level 1
very helpful!
question #18s answer should be a, not d. this should be corrected. it should be minvalidityperiod