1) For the following scenario, identify the stated items. CDC wants to track hospital death rates...

1) For the following scenario, identify the stated items. CDC wants to track hospital death rates from the latest viral epidemic in the US. They received death rates from 50 hospitals in 20 different states. The average death rate from the 50 hospitais was 2.5%

Describe the population of interest:

Describe the sample:

What is the parameter of interest?

What statistic was calculated ?

2) The probability of Bob hitting the bullseye on a dartboard is 10%. Find the mean and the standar devition of x, the number of times that Bob hits the bullseye out of 20 throws of a dart. Then find the probability that he makes exactly 4 bullseyes in his next 20 throws? Round answers to 3 decimal places. Setup probability formula , but use calculator for result.

Mean =

S.D. =

Prob from calculator=

3) A teacher selected a sample of students by selecting one row and picking all students in that row. What sampling method would this be classified as? Explain.

i need help on these questions, thank you.

Solutions

Expert Solution

The hospitals of U.S is the population of interest .
50 hospitals in 20 different states in U.S is the sample.
The average death rates from latest viral epidemic in U.S is the parameter of interest.
The average death rates from 50 hospitals was =2.5%, this is the statistic calculated.

orchestra answered 1 year ago

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