Question

Asked May 7, 2019

1 views

The following table gives the number of deaths due to accidental falls for each month during 1970. Is there any evidence for a departure from uniformity in the rate over time? That is, is there a seasonal pattern to this death rate? If so, describe its pattern and speculate as to causes. Table attached.

Step 1

**Solution:**

** **Let us first test whether “Accidents are uniformly distributed”, using a Chi-square test of Goodness of fit.

Step 2

**Hypotheses:**

The aim is to check whether the Accidents are uniformly distributed.

The null hypothesis is:

*H*_{0} : Accidents are not uniformly distributed.

The alternative hypothesis is:

*H*_{1} : Accidents are uniformly distributed.

Assume that the level of significance as 0.05 .

Step 3

**Calculation steps:**

The calculations have been done in EXCEL.

Denote *Oi* as the observed frequency (*i* =1, 2…12) and *Ei* as the expected frequency(*i* =1, 2…12). Here, the sample size .

The expected number of deaths for the parti...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: Do you want to own your own candy store? Wow! With some interest in running your own business and a ...

A: (a)Using the provided data, the sample mean and standard deviation can be calculated using Excel fun...

Q: A simple random sample of n=23 professors at a local community college have a mean course evaluation...

A: Solution:Null and alternative hypotheses:Null hypothesis: µ = 4Alternative hypothesis: µ ≠ 4Test sta...

Q: We use the form ŷ = a + bx for the least-squares line. In some computer printouts, the least-squar...

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,...

Q: There are several possible explanations for the existence of a statistical relationship between two ...

A: The existence of a statistical relationship between two variables can be due to several factors that...

Q: In general, we want to see if elderly primes will lead people to feel elderly feelings and see an ol...

A: The independent variable is that which is changed by the experimenter to test the outcome of the dep...

Q: A politician recently made the claim that 47% of taxpayers from a certain region do not pay any inco...

A: The aim is to identify the null and alternative hypotheses for testing the claim.

Q: Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks, a veterinarian took th...

A: Given data of glucose reading for 8 weeks92 87 82 107 99 109 85 89The sample x-bar is 93.8 . x is no...

Q: Test the hypotheses of Ho: sigma is equal to 0.56 versus Ha: sigma not equal to 0.56 using a 5% sign...

A: According to the given question, to test the hypothesis of H0: sigma is equal to 0.56 versus Ha: sig...

Q: Doctor Frederick believes the population mean weight of adult male patients in his practice is exact...

A: The aim is to find the accurate statement from the following options to evaluate the claim that the ...