Welcome

• ## 1955, Life Magazine reported that a 25-year-old mother of three worked, on average, an 80 hour week. Recently, many groups have been studying whether or not the women’s movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work week has increased. 70 women were surveyed with the following results. The sample mean was 83; the sample standard deviation was 10. Does it appear that the mean work week has increased for women at the 5% level?Part (d)

State the distribution to use for the test. (Enter your answer in the form z or tdf where dfis the degrees of freedom.)

• ## Part (e)

What is the test statistic? (If using the z distribution round your answers to two decimal places, and if using the t distribution round your answers to three decimal places.)
—Select— t z =
• ## Part (f)

What is the p-value?

p-value < 0.0100.010 < p-value < 0.050     0.050 < p-value < 0.100p-value > 0.100

Explain what the p-value means for this problem.

If

H0

is true, then there is a chance equal to the p-value that the average number of hours women work each week is 83 hours or more.If

H0

is true, then there is a chance equal to the p-value that the average number of hours women work each week is not 83 hours or more.      If

H0

is false, then there is a chance equal to the p-value that the average number of hours women work each week is not 83 hours or more.If

H0

is false, then there is a chance equal to the p-value that the average number of hours women work each week is 83 hours. or more

• ## Part (g)

Sketch a picture of this situation. Label and scale the horizontal axis and shade the region(s) corresponding to the p-value.

• ## Part (h)

Indicate the correct decision (“reject” or “do not reject” the null hypothesis), the reason for it, and write an appropriate conclusion.

(i) Alpha (Enter an exact number as an integer, fraction, or decimal.)
? =

(ii) Decision:

reject the null hypothesisdo not reject the null hypothesis

(iii) Reason for decision:

Since ? < p-value, we do not reject the null hypothesis.Since ? > p-value, we reject the null hypothesis.     Since ? > p-value, we do not reject the null hypothesis.Since ? < p-value, we reject the null hypothesis.

(iv) Conclusion:

There is sufficient evidence to conclude that the average number of hours women work each week is more than 80 hours.There is not sufficient evidence to conclude that the average number of hours women work each week is more than 80 hours.
• ## Part (i)

Construct a 95% confidence interval for the true mean. Sketch the graph of the situation.
Tired of numerous paper assignments?
Rely on us and receive professional paper writing assistance!

## Who We Are

We are a professional website for customized writing. If you searched a question and stumbled into our website, you are in the right place to receive assistance with your coursework.

## Do you handle any type of coursework?

Yes. We have displayed prior orders to demonstrate our experience. We can answer this question for you as we have previously. Please fill out our Order Form so that we may ensure its flawlessness. Correctly completing the order form will help our staff with reference, requirements, and future communication.

## Is it hard to Place an Order?

1. Click on the “Order Now” tab at the top menu or “GET A FREE QUOTE” icon at the bottom and a new page will appear with an order form to be filled
2. Fill in the initial requirements in the small order form located on the home page and press “continue” button to proceed to the main order form or press “order” button in the header menu. Starting from there let our system intuitively guide you through all steps of ordering process. Submit detailed paper instructions, upload necessary files if needed and provide your contact information – you are almost done!
3. Proceed with the payment- click on “PROCEED TO CHECKOUT” at the bottom of the page. From there, the payment sections will show, follow the guided payment process and your order will be available for our writing team to work on it. All your payments are processed securely through PayPal. This enables us to guarantee a 100% security of your funds and process payments swiftly.