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A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 3 percentage points with 95% confidence if
a) he uses a previous estimate of 36%? (round up to nearest integer)
n = ?
b) ge does not use any prior estimates? (round up to nearest integer)
a box-shaped wood stove has dimensions of 0.75 m x 1.2 m x 0.40 m an emissivity of 0.81 and a surface temperature of
suppose that 13 of all steel shafts produced by a certain process are nonconforming but can be reworked rather than
a tank has a volume of 0.35m3 and initially contains saturated vapor at 333 kpa. the valve is next opened and steam
management uses several capital budgeting methods in evaluating projects for possible investment. identify those
a scuba divers 2 cubic foot air tank is to be filled with air from a compressed air line at 120 psia and 100 degrees f.
a two-stage missile is fired vertically from rest with acceleration as shown in the graph. in 15 sec the first stage a
1. a box contains 5 green 6 red 2 yellow and 8 blue marbles. four marbles are drawn from the box at the same time.a
given the following prepare the entries that both the purchaser and seller should record for these transactions. assume
an open brayton cycle engine operates with a compressor-pressure ratio of 6 an inlet temperature of 20 c and inlet
toms wife dina owns a printing business in town. tom works in the accounts payable department of jiffy lube company.
0.8 of all college students like the idea of a new curriculum. If we select 87 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students.
We can think of this as the value of mew that maximizes f(y), the probability that our observed value of y occurs.
a chess tournament has 10 competitors of which 3 are russian 5 are french and 2 are english. if the tournament result
The annual mean vehicle miles of travel per household
Biologists suspect that male wolves are more likely than females to return to an area where the population has been greatly reduced.
What is the probability of randomly selecting a student with a treadmill time greater than 25 minutes? In symbols, p(X>25)= ? What is the probability of randomly selecting a student with a time greater than 30 minutes? In symbols, p(x>30) ?
The manufacturer has to replace or exchange 10% of its model I and 18% of its model II. If a model is selected at random, find the probability that it will be defective?
The mean time to expose a single panel in a circuit-board plant is two minutes with a standard deviation of 1.5 minutes. What is the natural coefficient of variation?
How do you set up SPSS to find descriptives for the perceived learning variable for each gender?
The distributor selects one cable at random from among all cables in stock. If the cable selected is found to meet the strength specifications, what is the probability that the cable was produced at Plant A?
Canada has two official languages, English and French. Choose a Canadian at random and ask, "What is your mother tongue?
Evaluate z statistic for the Wilcoxon rank sum test, standard deviation for the Wilcoxon rank sum test and P-value for the Wilcoxon rank sum test
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