Looking for help with an assignment? Connect with an assignment Expert Now!

indicate  whether you’d use the normal distribution the distribution or neither.

indicate  whether you’d use the normal distribution the distribution or neither.. [08] Assignment 8


Directions: Be   sure to save an electronic copy of your answer before submitting it to   Ashworth College for grading. Unless otherwise stated, answer in complete   sentences, and be sure to use correct English, spelling, and grammar. Refer   to the “Assignment Format” page located on the Course Home Page for specific   format requirements.

NOTE: Show   your work in the problems.

1. In the following situations, indicate   whether you’d use the normal distribution, the tdistribution, or neither.

a. The population is normally distributed,   and you know the population standard deviation.
b. You don’t know the population standard deviation, and the sample size is   35.
c. The sample size is 22, and the population is normally distributed.
d. The sample size is 12, and the population is not normally distributed.
e. The sample size is 45, and you know the population standard deviation.

2. The prices of used books   at a large college bookstore are normally distributed. If a sample of 23 used   books from this store has a mean price of $27.50 with a standard deviation of   $6.75, use Table 10.1 in your textbook to calculate the following for a 95%   confidence level about the population mean. Be sure to show your work.

a. Degrees of freedom
b. The critical value of t
c. The margin of error
d. The confidence interval for a 95% confidence level

3. Statistics students at a   state college compiled the following two-way table from a sample of randomly   selected students at their college:


Play chess

Don’t play chess


Male students




Female students



Answer the following   questions about the table. Be sure to show any calculations.

a. How many students in total were surveyed?
b. How many of the students surveyed play chess?
c. What question about the population of students at the state college would   this table attempt to answer?
d. State Hº and Hª for the test related to this table.

4. Answer the following   questions about an ANOVA analysis involving three samples.

a. In this ANOVA analysis, what are we trying   to determine about the three populations they’re taken from?
b. State the null and alternate hypotheses for a three-sample ANOVA   analysis.
c. What sample statistics must be known to conduct an ANOVA analysis?
d. In an ANOVA test, what does an F test   statistic lower than its critical value tell us about the three populations   we’re examining?

indicate  whether you’d use the normal distribution the distribution or neither.

Get a Quick Quote

Approximately 250 words
Total price (USD) $: 10.99

Pressed for time on your upcoming paper? We can help!

Bored with homework

Reviews from Clients who Ordered from Our Website

Why Us?


We use grammar & plagiarism softwares and a Quality Assurance Editing Team to ensure you get a ready to submit paper


We understand how tight deadlines can get and are always eager to work and beat tight deadlines


To deliver the best results we offer endless revisions to ensure you get just what they asked for


You get to chat and interact with the writer to ensure the paper meets all standard requirements

How it Works

Place an Order

Provide your contact information, select an order type, and describe your requirements. This isn’t going to take long!

Image showing step 1 of making an order
Image showing how to make payment for your order

Select an Appropriate Writer

We’ll match your specifications with our available authors after we have all of the relevant information concerning your order.

Image showing how to download your completed results

Enjoy the End Product

One of our specialists will fulfill your purchase according to your specifications so that you are happy with the end result.