Assume that the mean duration of pregnancy is 266 days with a standard deviation of 24 days. Researchers were interested in determining if women who smoke run the risk of a shorter duration of pregnancy. They intend to take a sample of 36 pregnant women who smoke to test if the mean duration of pregnancy differs from 266, using a level of significance of .05. Assume that the standard deviation of the duration of pregnancy for women who smoke in the population is 24 days. a) State the statistical hypotheses. (1 mark) b) Assume that the researchers intend to conduct the hypothesis test as defined by the statistical hypotheses in part a). If they choose to use a sample size of 36, will this study have sufficient power to detect a significant difference in mean duration of pregnancy if the actual effect is a decrease of 12 days? Assume that the standard deviation of duration of pregnancy for women who smoke in the population is 24 days. and a = .05?

Attachments:

8FF7C589-B2E4….png

D57F82BF-66C7….png

2F59E051-ED7C….png

"Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!"

You are tasked to create a Django website where users can privately create and

share notes. All users will have an account and they will be able to signup then

login to their account. Once logged in they will be able to write notes in the web

app. While creating the note they will have the option to share the note with

another user of the web app. The app will contain a page where the user can see

the notes that they have created and the notes that have been shared with them.

Attachments:

Django-Projec….pdf

"Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!"

[Java] [Visitor Pattern] Given the files below, write all visitor classes so that thedemo gives the following output.
Incomplete code:drive.google.com/drive/folders/16dmB8aMlggE54Jv4wK08jCyENRoWlHyJ?usp=sharing Visiting front left wheel Visiting front right wheel Visiting back left wheel Visiting back right wheel Visiting body Visiting engine Visiting car Kicking my front left wheel Kicking my front right wheel Kicking my back left wheel Kicking my back right wheel Waxing my body Starting my engine Starting my car Attached

"Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!"

The following describes the expenditure cycle manual procedures for a hypothetical company. The inventory control clerk examines the inventory records for items that must be replenished and prepares a two-part purchase requisition. Copy 1 of the requisition is sent to the purchasing department, and Copy 2 is filed. Upon receipt of the requisition, the purchasing clerk selects a supplier from the valid vendor file (reference file) and prepares a three-part purchase order. Copy 1 is sent to the supplier, Copy 2 is sent to the accounts payable department where it is filed temporarily, and Copy 3 is filed in the purchases department. A few days after the supplier ships the order, the goods arrive at the receiving department. They are inspected, and the receiving clerk prepares a three-part receiving report describing the number and quality of the items received. Copy 1 of the receiving report accompanies the goods to the stores, where they are secured. Copy 2 is sent to inventory control, where the clerk posts it to the inventory records and files the document. Copy 3 is sent to the accounts payable department, where it is filed with the purchase order. A day or two later, the accounts payable clerk receives the supplier’s invoice (bill) for the items shipped. The clerk pulls the purchase order and receiving report from the temporary file and compares the quantity ordered, quantity received, and the price charged. After reconciling the three documents, the clerk enters the purchase in the purchases journal and posts the amount owed to the accounts payable subsidiary account. On the payment due date, the accounts payable clerk posts to the accounts payable subsidiary account to remove the liability and prepares a voucher authorizing payment to the vendor. The voucher is then sent to the cash disbursements clerk. Upon receipt of the voucher, the cash disbursements clerk prepares a check and sends it to the supplier. The clerk records the check in the check register and files a copy of the check in the department filing cabinet.

Required

Prepare a data flow diagram and a system flowchart of the expenditure cycle procedures previously described.

"Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!"