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The admissions director at big city university proposed using the iq scores of current students as a marketing tool. the univers

Vika [28.1K]

The complete question is as follows:

The admission directory of Big City University has a novel idea. He proposed using the IQ scores of current students as a marketing tool. The university agrees to provide him with enough money to administer IQ tests to 50 students. So the director gives the IQ test to an SRS of 50 of the university’s 5000 freshman. The mean IQ score for the sample is xbar=112. The IQ test he administered is known to have a σ of 15. What is the 95% Confidence Interval about the mean? What can the director say about the mean score of the population of all 5000 freshman?

Answer: The 95% confidence interval about the mean is $Confidence interval = 107.84 \leq \mu \leq 116.16$ .

The director can say that he is 95% confident that the mean IQ score of the 5000 freshmen lies between 107.84 and 116.16.

We follow these steps to arrive at the answer:

Since the population standard deviation of the IQ test is known, we can use the Z scores to find the confidence interval.

The formula for the confidence interval about the mean is:

$Confidence interval = \overline{X}\pm Z*\frac{\sigma}{\sqrt{n}}$

In the equation above, X bar is known as the point estimate and the second term is known as Margin of Error.

The Critical Value of Z at the 95% confidence level is 1.96.

Substituting the values in the question in the equation above we have,

$Confidence interval = \112\pm 1.96*\frac{15}{\sqrt{50}}$

$Confidence interval = \112\pm 4.157787873}$

$Confidence interval = 107.8422121 \leq \mu \leq 116.1577879$

5 0

3 years ago

Select each of the tasks associated with opening a checking account.

garri49 [273]

Tasks associated with opening a checking account are:

Provide information such as name, address, date of birth, and Social Security Number.
Provide identification.
Deposit at least the minimum balance.
Sign an authorization card.

A checking account makes it simple to access your money for daily transactions while also keeping it safe. Typically, customers can pay their bills or make purchases using a debit card or a cheque. Different methods may be available for accounts to help avoid the monthly service charge.

A checking account's main function is to store your money in a safe location for a brief period of time, making it accessible when you need it to cover bills and other costs.

Customers who open checking account consent to make deposits into the account, and in return, the bank is obligated to carry out their payment instructions.

Before creating a checking account, it is important to weigh your options and find out whether or not the entity will charge you for maintaining the account and any related items. Being of legal age and fulfilling the conditions established by the chosen financial institution are the second prerequisites you must meet in order to open a checking account.

To know more about checking accounts refer to: brainly.com/question/17014586

#SPJ1

5 0

2 years ago

P10-45. Analyzing and Interpreting Effects of TCJA Tax Law Changes. Pfizer Inc. reports the following footnote disclosure in its

forsale [732]

Woahhhh that’s a lot !!

5 0

3 years ago

When its sales were declining, canadian airline conducted a marketing survey to understand the expectations of the business trav

Montano1993 [528]

Answer:

The correct answer would be, The Canadian Airline would have used Lost Customer Recovery Strategy.

Explanation:

When the sales of the Canadian Airline declines, they surveyed their target market which is Business Class Travelers. From the responses of the customers, they found out that customers feel bounded by the staff of the airplane. They think that they were totally controlled by the staff on board.

Now if the Canadian Airline would have surveyed their former customers, then they would have known why they left their airline, and what was their concerns and what they want in this airline; then the strategy used by them would have Lost Customer Recovery Strategy.

7 0

3 years ago

Pirate Seafood Company purchases lobsters and processes them into tails and flakes. It sells the lobster tails for $20.30 per po

bija089 [108]

Answer:

Pirate Seafood Company

1) Calculation of the Allocated Cost of Sold Items:

a) Production Units:

Lobster tails = 3,200/100 * 58 = 1,856 units

Lobster flakes = 3,200/100 * 26 = 832 units

Total units = 2,688 units, costing $12,800

b) Material costs:

Lobster tails = 1,856/2,688 * $12,800 = $8,838

Lobster flakes = 832/2,688 * $12,800 = $3,962

c) Labor costs:

Lobster tails = 1,856/2,688 * $7,400 = $5,110

Lobster flakes = 832/2,688 * $7,400 = $2,290

d) Total Production costs (Materials & Labor):

i) Lobster tails = $8,838 + $5,110 = $13,948

per unit cost = $13,948/1,856 = $7.52

ii) Lobster flakes = $3,962 + $2,290 = $$6,252

per unit cost = $6,252/832 = $7.51

e) Cost of Sales:

Lobster tails = $7.52 x 1,722 = $12,949.44

Lobster flakes = $7.51 x 752 = $5,647.52

2) Calculation of the Allocated Cost of Ending Inventory:

a) Ending Inventory units:

Lobster tails = Production unit Minus Sales unit = 1,856 - 1,722 = 134

Lobster flakes = Production unit Minus Sales unit = 832 - 752 = 80

b) Ending Inventory costs:

Lobster tails = 134 x $7.52 = $ 1,007.68

Lobster flakes = 80 x $7.51 = $600.80

Explanation:

To calculate the costs of sales and the costs of ending inventory, the first step is to calculate the units produced. The material and labour costs are then apportioned based on the units produced since no costs are allocated to the waste.

Then, the unit costs of tails and flakes are calculated. These form the bases for computing the cost of items sold and the ending inventory.

5 0

3 years ago

Any guys wanna join a pad let