Solve the following. Show your complete solution. Suppose that the amount of time takes place the Bureau of Internal Revenue (BIR) to send refunds to taxpayers is normally distributed with a mean of 15 weeks and a standard deviation of 4 weeks. a. What proportion of taxpayers should get a refund within 7 weeks? b. How long will it take before 67% of taxpayers get their refund? note: can you answer it in a written form please? thank you!
Solve the following. Show your complete solution. Suppose that the amount of time takes place the Bureau of Internal Revenue (BIR) to send refunds to taxpayers is normally distributed with a mean of 15 weeks and a standard deviation of 4 weeks. a. What proportion of taxpayers should get a refund within 7 weeks? b. How long will it take before 67% of taxpayers get their refund? note: can you answer it in a written form please? thank you!
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 21PFA
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Question
Solve the following. Show your complete solution.
Suppose that the amount of time takes place the Bureau of Internal Revenue (BIR) to send
refunds to taxpayers is normally distributed with a mean of 15 weeks and a standard deviation
of 4 weeks.
a. What proportion of taxpayers should get a refund within 7 weeks?
b. How long will it take before 67% of taxpayers get their refund?
note: can you answer it in a written form please? thank you!
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