1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
viva [34]
3 years ago
9

Hospital administrators wish to learn the average length of stay of all surgical patients. a statistician determines that, for a

95% confidence level estimate of the average length of stay to within +/- 0.5 days, 50 surgical patients' records will have to be examined. how many records should be looked at to obtain a 95% confidence level estimate to within +/- 0.25 days?
Business
1 answer:
Setler [38]3 years ago
7 0

20,000 records should be looked

Solution:

Solve for s :  50 = [1.96*s/0.5]

25 = 1.96s

s = 12.75

Solve for "n":  n = [1.96*12.75/0.25]^2

n = [100]^2

n = 20,000

You might be interested in
You are working on the toll plaza construction phase of the Grand Harbor Tunnel project. You notice that the concrete being pour
Radda [10]

Answer:

Discuss the concerns you have with the supervisor in charge.

Explanation:

It is wrong under the ethics code to ignore a clear sign that an intervention is required be it in business decision making or in this case, construction. It is your obligation to report any abnormality noticed to the supervisor in charge.

4 0
4 years ago
What is not the best speed control option to use when approaching a stale green traffic light? a. maintain speed b. apply brake
romanna [79]

Answer:

c

Explanation:

A stale green light is light that is about to turn yellow because it has been green for a while

Cover brake involves taking ones foot off the accelerator and hovering it over the brake pedal.

Cover brake is necessary when there is a stale green light in case there is a need to stop suddenly or reduce speed

6 0
3 years ago
A company begins a review of ordering policies for its continuous review system by checking the current policies for a sample of
Maru [420]

Answer:

Explanation:

Given that:

weekly demand = 72 units

no of weeks in 1 year = 48

Then; total demand = 72 × 48 = 3456 units

No of orders = \dfrac{\text{total demand }}{EOQ}

= \dfrac{\text{3456}}{145}

∴

The periodic review (P) = \dfrac{1}{no \ of \ orders}

= \dfrac{1}{\dfrac{3456}{145}}

= \dfrac{145}{3456}

= 0.041956 year

≅ 2 weeks

Z score based on 88 percent service level = NORMSINV(0.88) = 1.18

Here;

Lead time = 3 wks

P = 2 weeks

Thus protection interval = ( 3+2) weeks

= 5 weeks

Safety stock = z-score × std dev. of demand at (P+L) days

std dev = \sqrt{5 } \times 18 = 2.236 × 18

std dev = 40.248 units

Safety stock = 1.18 × 40.248

safety stock = 47.49 units

Safety stock ≅ 48 units

Average demand during(P + L) = 5 × 72 units

= 360 units

Target inventory level = average demand + safety stock

= 360 units + 48 units

= 408 units

3 0
3 years ago
I need some adresses that i can wright to
Alexeev081 [22]
For pen pals? becuase i know an awesome site that will give you random adresses. 

5 0
3 years ago
Read 2 more answers
A sales associate wants to earn at least $90,000 next year. she plans that 60% of the income will come from listings sold and 40
Nataly [62]
60% of $90,000 is: 60/100*90,000=0.6*90,000=54,000
<span>So, the sales associate plans $64,000 from the total income to come from sold listings .
</span>40% of $90,000 is: 40/100*90,000=0.4*90,000=36,000
So, the sales associate plans $36,000 from the total income to come from sales made.
<span>If the average commission from listings sold is $3,000 she must cell X=64,000/3000=21,3 ~22 listings (at least) in order to achieve her goal.</span>
5 0
3 years ago
Other questions:
  • A partnership has the following capital balances: Comprix (40% of gains and losses) $ 180,000 Heflin (30%) 280,000 Kaplan (30%)
    6·1 answer
  • An employee receives an hourly wage rate of $16, with time and a half for all hours worked in excess of 40 hours during a week.
    11·1 answer
  • The IS curve represents Select one: a. the single level of output where financial markets are in equilibrium. b. the combination
    12·2 answers
  • Based on the position you are interested in, please describe your sales or retention style.
    14·1 answer
  • If the sides market (betting on a team against the point spread) for NFL football betting is semi-strong form efficient, what do
    11·1 answer
  • Expected direct materials purchases in Metlock Company are $204000 in the first quarter and $264000 in the second quarter. 35 pe
    14·1 answer
  • What are two ways you would get a good credit report?
    6·1 answer
  • An initial investment amount​ P, an annual interest rate​ r, and a time t are given. Find the future value of the investment whe
    9·1 answer
  • Lisa's opportunity cost rate is 10 percent compounded annually. How much must she deposit in an account today if she wants to re
    9·1 answer
  • A jewelry manufacturer incurred the following costs: 15,000 units produced with costs of $557,500, and 5,000 units produced with
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!