Question

Asked Jan 25, 2020

12 views

Finding Critical Values of X2 For large numbers of degrees of freedom, we can approximate critical values of as follows:

Here K is the number of degrees of freedom and z is the critical value(s) found from technology or Table A-2. In Exercise 12 “Spoken Words” we have df = 55, so Table A-4 does not list an exact critical value. If we want to approximate a critical value of X2 in the right-tailed hypothesis test with α = 0.01 and a sample size of 56, we let k = 55 with z = 2.33 (or the more accurate value of z = 2.326348 found from technology). Use this approximation to estimate the critical value of X2 for Exercise 12. How close is it to the critical value of = 82.292 obtained by using Statdisk and Minitab?

Step 1

To find the critical value of Chi square

Given

k = degree of freedom= 55

z = 2.33

The estimate formula to find the critical va...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: Preliminary data analyses indicate that you can reasonably use a t-test to conduct each of the hypot...

A: The null and alternative hypotheses are stated below:

Q: In each of Exercises, use the technology of your choice to decide whether applying the t-test to per...

A: Step by step procedure to draw the normal probability plot, using MINITAB software.Choose Graph >...

Q: could you help me solve these examples? given a=3 and b=4 and the chart

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: My question asks me to find the class width, limits, boundaries, midpoints, frequencies, relative fr...

A: Selection of number of classes:“2 to the k rule” suggests that the number of classes is the smallest...

Q: Income Tax and the IRS. In 2010, the Internal Revenue Service (IRS) sampled 308,946 tax returns to o...

A: a)Sampling error:When a sample is used to estimate a population characteristic the error resulting i...

Q: Births There are about 11,000 births each day in the United States, and the proportion of boys born ...

A: a.Here, the samples of the same size are taken from the same population every day.That is, the sampl...

Q: Electricity Costs. The monthly service charge for electricity for a residential customer who is usin...

A: a)For the customer, the fixed cost that has to be paid for using the Two Period Plan is $4.10.

Q: Curving Test Scores A professor gives a test and the scores are normally distributed with a mean of ...

A: Note:Hey there! Thank you for posting the question. However, since your question has more than 3 sub...

Q: Suppose that you have obtained data by taking a random sample from a population and that you intend ...

A: If the level of confidence increases then the standard error of statistic also increases. The margin...