# Month: August 2020

#### Items are packed into boxes of 1000, and each item has a probability of 0.001 of having some type of fault

a. Items are packed into boxes of 1000, and each item has a probability of 0.001 of having some type…

#### The number of parking tickets issued in a certain city on any given weekday has a Poisson distribution with parameter

The number of parking tickets issued in a certain city on any given weekday has a Poisson distribution with parameter…

#### Imagine you are in a game show. There are 4 prizes hidden on a game board with 10 spaces. One prize is worth

Imagine you are in a game show. There are 4 prizes hidden on a game board with 10 spaces. One…

#### A certain type of light bulb has lifetimes that follows an exponential distribution with mean 1000 hours

A certain type of light bulb has lifetimes that follows an exponential distribution with mean 1000 hours. Find the median…

#### A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment

A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After…

#### Suppose the U.S. president wants an estimate of the proportion of the population who support his current policy toward revisions in the health

Suppose the U.S. president wants an estimate of the proportion of the population who support his current policy toward revisions…

#### The proportion of public accountants who have changed companies within the last three years is to be estimated within 3%. The 90% level of confidence

The proportion of public accountants who have changed companies within the last three years is to be estimated within 3%.…

#### A small pilot study is run to compare a new drug for chronic pain to one that is currently available. Participants are

A small pilot study is run to compare a new drug for chronic pain to one that is currently available.…

#### An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is estimated at

An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is estimated at…

#### The probability that you will win a game is 0.45. (a) If you play the game 80 times, what is the most likely number of wins

The probability that you will win a game is 0.45. (a) If you play the game 80 times, what is…