Improve Your Understanding of College Level Statistics Problems
Garrett Sheppard 2022-08-05How can a researcher avoid a biased sample?
Jesse Urbina2022-07-31The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of twelve syringes taken from the batch. Suppose the batch contains 1% defective syringes.
(b)
Find 𝜇 (in terms of the number of syringes). (Enter a number. Enter your answer to two decimal places.)
𝜇 = syringes
What is the expected number of defective syringes the inspector will find? (Enter a number. Enter your answer to two decimal places.)
(c)
What is the probability that the batch will be accepted? (Enter a number. Round your answer to three decimal places.)
(d)
Find 𝜎 (in terms of the number of syringes). (Enter a number. Round your answer to three decimal places.)
𝜎 = syringes
The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of twelve syringes taken from the batch. Suppose the batch contains 1% defective syringes.
(b)
Find 𝜇 (in terms of the number of syringes). (Enter a number. Enter your answer to two decimal places.)
𝜇 = syringes
What is the expected number of defective syringes the inspector will find? (Enter a number. Enter your answer to two decimal places.)
(c)
What is the probability that the batch will be accepted? (Enter a number. Round your answer to three decimal places.)
(d)
Find 𝜎 (in terms of the number of syringes). (Enter a number. Round your answer to three decimal places.)
𝜎 = syringes
Angela Serrano2022-07-31From 1980 to 2008, the number B of federally insured banks could be approximated by B(t)=−329t+13773 where t is the year and t=0 corresponds to 1980.
Find the slope of the graph of B.
From 1980 to 2008, the number B of federally insured banks could be approximated by B(t)=−329t+13773 where t is the year and t=0 corresponds to 1980.
Find the slope of the graph of B.
Kofi Asiedu2022-07-31Find the area under the standard normal distribution by shading the direction of the following z- scores
1. To the left of z=2.246
2. To the right of z=2.10
Between z=1.50 and z=2.25
Find the area under the standard normal distribution by shading the direction of the following z- scores
1. To the left of z=2.246
2. To the right of z=2.10
Between z=1.50 and z=2.25
Richard Smith2022-07-31Let A*X = B, be a system of linear equations where A is a 3×3 matrix. Suppose det A = 8, det Ax = 24, det Ay = 16 and det Az = 0 then the solution set using Cramer’s rule is given by:
Let A*X = B, be a system of linear equations where A is a 3×3 matrix. Suppose det A = 8, det Ax = 24, det Ay = 16 and det Az = 0 then the solution set using Cramer’s rule is given by:
phepafalowl 2022-07-29Evaluate each expression for the given values
5y-3z+4y-1z-3y when y=3 and z=-2
5y-3z+4y-1z-3y when y=3 and z=-2
Alduccii2 2022-07-28Find the converse and the contrapositive of the statement.
What is the converse?
What is the contrapositive?
What is the converse?
What is the contrapositive?
Talon Mcbride 2022-07-26Find the inverse and the contrapositive of the statement.
What is the inverse?
What is the contrapositive?
What is the inverse?
What is the contrapositive?
gibsontyrese 2022-07-23Please use the attached data to answer the questions from each of the scenarios. I will need the data and output from each scenario given to me separately using SPSS analysis.
Please use the attached data to answer the questions from each of the scenarios. I will need the data and output from each scenario given to me separately using SPSS analysis.
Damien Horton 2022-07-23Given a sample show, using the definition of completeness, that the statistic is not complete for . Use the fact that
The statistic is said to be complete for the distribution of if, for every misurable function ,
The statistic is said to be complete for the distribution of if, for every misurable function ,
Paxton Hoffman 2022-07-23We have provided simple data sets for you to practice the basics of finding a population mean.
2, 5, 0, −1
2, 5, 0, −1
Stephanie Hunter 2022-07-23What is the primary objective of sampling from a population?
Kenya Leonard 2022-07-23Test for HIV. There's a false positive rate of 0.025 and a false negative rate of 0.08. Let's say a particular patient has a probability of testing positive for HIV of 0.005. The patient gets tested and it's positive. What are the chances that the patient actually has HIV?
Tamara Bryan 2022-07-23An ecological pyramid is a graphical representation of the relationship between the different living organisms at different trophic levels. Explain the three ecological pyramids in detail. What are the shortcomings of each type's ecological pyramids in the study of ecosystem?
Kimberlee Ann2022-07-23Suppose a jar contains 13 red marbles and 31 blue marbles. If you reach in the jar and pull out 2 marbles at random, find the probability that both are red. Round your answer to 4 decimal places.
Suppose a jar contains 13 red marbles and 31 blue marbles. If you reach in the jar and pull out 2 marbles at random, find the probability that both are red. Round your answer to 4 decimal places.
Marisol Rivers 2022-07-22How do you find the exact solutions to the system and x=y?
Francisco Proctor 2022-07-22How do you find the exact value of degrees?
Stephanie Hunter 2022-07-22A 129-kg astronaut (including space suit) acquires a speed of 2.90 m/s by pushing off with her legs from a 1900-kg space capsule. Use the reference frame in which the capsule is at rest before the push.
What is the velocity of the space capsule after the push in the reference frame? Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the velocity is in the direction of the velocity of the astronaut and negative value if the direction of the velocity is in the direction opposite to the velocity of the astronaut.
What is the velocity of the space capsule after the push in the reference frame? Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the velocity is in the direction of the velocity of the astronaut and negative value if the direction of the velocity is in the direction opposite to the velocity of the astronaut.
