Question

Hospitals typically require backup generators to provide electricity in the event of a power outage assume the emergency back up generators feel 22% of the times when they are needed. The hospital has to back up generators so that the power is available if one of them fails during the power outage. Find the probability to four decimal places that both generators fell during a power outage.

Step 1

*Independent events:*

If *A *and *B *are two independent events, the probability of the event *A* and *B* can be calculated as shown below:

Step 2

**Computing the probability that both generators fell during a power outage:**

It was found that the generator fails 22% of the times when they are needed.

There are two generators and the probability of each generator fell during a power outage is 0.22.

That is, the probability that the first generator, G1 fails is, P(G1) = 0.22.

Also, the probability that the second generator, G2 fails is, P(G2) = 0.22.

It is assumed that the ...

Tagged in

Q: Suppose 230 subjects are treated with a drug that is used to treat pain and 54 of them developed nau...

A: Given hypothesis testNull Hypothesis : p = 0.20Alternative Hypothesis : p > 0.20The sample size n...

Q: A hospital administrator claims that the proportion of knee surgeries that are successful is 87%. To...

A: The provided information are:Sample size (n) = 450Hypothesised proportion (po)=0.87From the provided...

Q: A marketing manager for a cell phone company claims that more than 55% of children aged 8-12 have ce...

A: Null and alternative hypotheses:Here, to check whether more than 55% of children aged 8-12 have cell...

Q: How do I find A’ , Is It B,D and F ?

A: Given U = {a,b,c,d,e,f,g}A = {a,c,e,g}B = {a,b,c,d}A' is nothing but compliment of the set A which h...

Q: Select the statistic test that best fits each description. Study examining how much of the variation...

A: Regression:Regression analysis explains whether two variables are related or not and correlation exp...

Q: A farmer wants to test if a new fertilizer will produce more massive crops. In order to do this, he ...

A: Paired t-test statistic:In order to test a hypothesis regarding whether the difference between a pai...

Q: The CEO of a cable company claims that the population mean wait time for callers at a company's cust...

A: The aim is to find the accurate statement from the following options to evaluate the population mean...

Q: How do you calculate a coefficient of correlation of two indexes’ returns?

A: Let the two indexes’ returns be A and B.The coefficient of correlation measures the degree to which ...

Q: Part a, b, and c

A: Null and alternative hypothesis:Null Hypothesis:A null hypothesis is a statement regarding the popul...

Sorry about that. What wasn’t helpful?