## [answered] Module 6 Homework Assignment An investigator analyzed the l

Wondering if someone can help with my stats homework for this module?

Thanks!

Name: Module 6 Homework Assignment

An investigator analyzed the leading digits of the amounts from 200 checks issued by three suspect

companies. The frequencies were found to be 68, 40, 18, 19, 8, 20, 6, 9, 12 and those digits correspond

to the leading digits of 1, 2, 3, 4, 5, 6, 7, 8, and 9, respectively. If the observed frequencies are

substantially different from the frequencies expected with Benford's law, the check amounts appear to

be the result of fraud. Use a 0.05 significance level to test for goodness-of-fit with Benford's law.

1. Calculate the ?2 test statistic.

Solution: Instructor Comments: 2. Calculate the ?2 critical value.

Solution: Instructor Comments: 3. Is there sufficient evidence to conclude that the checks are the result of fraud?

Solution: Instructor Comments: Alert nurses at the Veteran's Affairs Medical Center in Northampton, Massachusetts, noticed an

unusually high number of deaths at times when another nurse, Kristen Gilbert, was working. Kristen

Gilbert was arrested and charged with four counts of murder and two counts of attempted murder.

When seeking a grand jury indictment, prosecutors provided a key piece of evidence consisting of the

table below. Use a 0.01 significance level to test the defense claim that deaths on shifts are independent

of whether Gilbert was working. Gilbert Was Working Shifts With a Death

40 Shifts Without a Death

217 Gilbert Was Not Working 34 1350 4. Calculate the ?2 test statistic.

Solution: Instructor Comments: 5. Calculate the ?2 critical value.

Solution: Instructor Comments: 6. Is there sufficient evidence to reject the defense claim that deaths on shifts are independent of

whether Gilbert was working?

Solution:

Solution details:
STATUS
QUALITY
Approved

This question was answered on: Sep 18, 2020

Solution~0001013988.zip (25.37 KB)

This attachment is locked

We have a ready expert answer for this paper which you can use for in-depth understanding, research editing or paraphrasing. You can buy it or order for a fresh, original and plagiarism-free copy from our tutoring website www.aceyourhomework.com (Deadline assured. Flexible pricing. TurnItIn Report provided)

STATUS

QUALITY

Approved

Sep 18, 2020

EXPERT

Tutor