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Marina CMI [18]
3 years ago
7

A recent study found that the death rate for people who sleep 6 to 7 hours per night is lower than the death rate for people who

sleep 8 or more hours. The 1.1 million observations used for this study came from a random survey of Americans aged 30 to 102. Each survey respondent was tracked for 4 years. The death rate for people sleeping 7 hours was calculated as the ratio of the number of deaths over the span of the study among people sleeping 7 hours to the total number of survey respondents who slept 7 hours. This calculation was then repeated for people sleeping 6​ hours, and so on. Based on this​ summary, would you recommend that Americans who sleep 9 hours per night consider reducing their sleep to 6 or 7 hours if they want to prolong their​ lives
Business
1 answer:
padilas [110]3 years ago
6 0

Answer:

Yes, I would recommend those sleeping 9 hours to consider sleeping 6 or 7 hours.

Explanation:

First of all, the sample of the study is very representative because the amount of observations is quite big: 1.1 million!. This means that the results of the study have a very low margin of error, and therefore, can be trusted.

Secondly, the calculations are simple, but correct. The easiest way to determine the mortality rate is to divide the number of people who died by the number of people who are still living, and who belong to the same sample.

You might be interested in
Which formula is correct formatting for a nested function?
erastova [34]

Answer:

=IF(AND(B2>3000,02>2000),"Bonus","No Bonus")

Explanation:

A nested If statement is used when 1 or more conditions are to be tested. The result of the nested function depends based on the true value of the function.

i.e. If the nested statement is true, certain operations are to be done otherwise, do something else. In other words, the IF function allows you to make a logical comparison between a value and what you expect by testing for a condition and returning a result if True or False.

The syntax of a nested function goes thus

IF( condition1, value_if_true1, IF( condition2, value_if_true2, value_if_false2 ))

This would be equivalent to the following in Excel

= IF(condition1,"value_if_true",value_if_false)

Base on the above explanation, only option B is right.

And what it does is that

it checks if cell B2 is greater than 3000 AND cell 02 is greater than 2000.

If both statement are true, "Bonus" will be the output result

If one ore both statement are false, "No Bonus" will be the output result

7 0
3 years ago
Alice is willing to spend $30 on a pair of jeans, and has a coupon for $10 off she found online.
oee [108]

Answer:

$5

Explanation:

The computation of Alice's consumer surplus is shown below:

Consumer surplus =  Willing to spend - Market price after considering the discount

where

Willing to spend = $30

Market price equals to

= Purchase a pair of jeans - coupon rate

= $35 - $10

= $25

So, the consumer surplus is equal to

= $30 - $25

= $5

3 0
3 years ago
You would like to borrow money three years from now to build a new building. In preparation for applying for that loan, you are
zysi [14]

Answer:

Option "D" is the correct answer to the following statement.

Explanation:

The cash coverage ratio helps find the available cash in hand or cash at the bank to pay for the expenditure of a loan. The ratio must be considerably higher to 1: 1, it shows our potential to pay interest. In this situation Option "D" has the highest Cash coverage ratio.

The debt-equity ratio is used to find the firm's credibility.

5 0
3 years ago
Generally speaking, a narrow span of management implies that the height of the organization will be ____; a wide span of managem
Pani-rosa [81]
<span>a narrow span of management implies that the height of the organization will be long; a wide span of management implies that the height of the organization will be short.

This is because in a narrow span of management, less people work under each manager and therefore, there will be more levels of hierarchy making the height of the organization longer and the vice versa applies.
</span>
6 0
3 years ago
Med Max buys surgical supplies from a variety of manufacturers and then resells and delivers these supplies to dozens of hospita
Semenov [28]

Answer:

A. Customer deliveries $90

Manual order processing $74

Electronic order processing $21

Line item picking $1.95

B. CITY GENERAL

Activity cost pools City General

Customer deliveries $900

Manual order processing $0

Electronic order processing $210

Line item picking $234

Total Activity Costs $1,344

COUNTRY GENERAL

Activity cost pools Country General

Customer deliveries $1,800

Manual order processing $2,960

Electronic order processing $0

Line item picking $546

Total Activity Costs $5,306

Explanation:

a. Computation for the activity rate for each activity cost pool

Using this formula

Activity rate = Total cost / Total activity

Let plug in the formula

Activity cost pools Total Cost (a) Total activity (b) Activity rate (a/b)

Customer deliveries $630,000/ 7,000 =$90

Manual order processing $444,000/ 6,000 =$74

Electronic order processing $231,000/ 11,000 =$21

Line item picking $955,500/ 490,000=$1.95

Therefore the activity rate for each activity cost pool are:

Customer deliveries $90

Manual order processing $74

Electronic order processing $21

Line item picking $1.95

b. Computation for the total activity costs that would be assigned to City General and County General

Using this formula

Activity cost assigned = Actual activity * Activity rates

Cost drivers by product Overhead cost assigned

CITY GENERAL

Activity cost pools Activity rate (a) City General(b) City General (a*b)

Customer deliveries $90 *10 =$900

Manual order processing $74*0=$0

Electronic order processing $21* 10=$210

Line item picking $1.95*120=$234

Total Activity Costs $1,344

($900+$0+$210+$234)

COUNTRY GENERAL

Activity cost pools Activity rate (a) Country General(b) Country General (a*b)

Customer deliveries $90 *20 =$1,800

Manual order processing $74*40=$2,960

Electronic order processing $21* 0=$0

Line item picking $1.95*280=$546

Total Activity Costs $5,306

($1,800+$2,960+$0+546)

Therefore The the total activity costs that would be assigned to City General and County General

are:

CITY GENERAL

Activity cost pools City General

Customer deliveries $900

Manual order processing $0

Electronic order processing $210

Line item picking $234

Total Activity Costs $1,344

COUNTRY GENERAL

Activity cost pools Country General

Customer deliveries $1,800

Manual order processing $2,960

Electronic order processing $0

Line item picking $546

Total Activity Costs $5,306

5 0
3 years ago
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