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Answer the following questions about the standard normal random variable Z. (Use 4 decimal places in your answers to parts a. through f.)
a. What is P(-1.5 < Z < .65)?
b. What is P(0 < Z < 1.38)?
c. What is P(Z > -1.67)?
d. What is P(Z < -2.76)?
e. What is P(Z < 2.61)?
f. What is P(-2.58 < Z < -1.17)?
g. What is the 33rd percentile of the standard normal distribution?
h. What is the 97.5th percentile of the standard normal distribution?
Calculate to the nearest cent, the final amount of money for an investment of 6,000 dollars at an APR of 2.9% compounded 4 times a year after 9 years. (Penny round your answer and please enter your answer without the $ sign.)
Based on a random sample of 16 customer transactions, the mean waiting time is 6.3 minutes and the standard deviation is 2 minutes per customer. What is the value of the test statistic we would use to test Ho?
a market research company finds that at a price of p=$20, they would sell x=42 tiles each month. If they lower the price to p=$10, then more people would purchase &they can expect to sell x=52 tiles in one month, find the equation of the line for ..
the boat's position during the interval of time from t=2s to t=10s is given by s= 4t+2.6t^2-0.08t^3 m
two planes leave chicago at the same time in opposite directions. if one travels at 450 miles per hour and the other travels at 550 miles person hour how long will it take for them to be 4000 miles apart.
Prove Let D be a nontrivial connected digraph. Then D is Eulerian if and only if od(v)=id(v) for every vertex v of D. Od means the outdegree of a vertex v of a digraph D. (is the number of vertices of D that are adjacent from v.
A small city park is shaped like a right triangle with a height length of 211 feet and a base length of 327 feet. What is the area of the city park?
Examine several newspapers and magazines and describe at least three examples of functions that you find. What is the domain and range of each function?
It is known that 20% of old cars cannot pass the emission test . Four old cars are selected randomly . x is the number of card in the sample that cannot pass the emission test.
For the following problems, determine how many years it will take for the two accounts to reach the same amount. A 1000 dollar investment at a rate of 3% compounded monthly and an 1100 dollar investment at a rate of 3.02% compounded annually.
Find the alternative hypothesis and the null hypothesis.
Find the length L and width W (with W leq L) of the enclosure that is most economical to construct.
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