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charle
10 days ago
11

Hospital records show that a certain surgical procedure takes on an average 111.6 minutes with a standard deviation of 2.8 minut

es. At least what percentage of these surgical procedures take anywhere between 97.6 and 125.6 minutes?
Mathematics
1 answer:
tester [8.7K]10 days ago
8 0
At minimum 37.74% of the procedures are completed within a time span of 97.6 to 125.6 minutes. The area representing this percentage corresponds to the standard normal distribution curve between the specified values. To derive the standard normal variate for the data provided, calculations are as follows... Consequently, the area corresponding to the computed values can be found in the standard normal distribution table to equal 37.74%.
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It takes 40 cents worth of meat to make 2 sandwiches. What is the cost of the meat for 20 sandwiches?
zzz [9046]

Response:

Four dollars or 400 cents

Detailed Explanation:

Since 2 multiplied by 10 equals 20, you can take 40 and also multiply it by 10 for the correct total.

7 0
23 days ago
Read 2 more answers
Kim's business earns $10,000 per month. Kim's non-employee expenses are $3,000 per month. If Kim wants $2,000 in profit per mont
AnnZ [9033]

Response:

The monthly income of Kim's business is $10,000.

Every month, Kim spends $3,000 on non-employee costs.

To achieve a monthly profit of $2,000, the highest possible expenditure for employees is calculated as follows:

10000 - 3000 - 2000 = 5000

With the cost of each employee being $1,000 a month, Kim can hire a maximum of 5000/1000 = 5 employees.

Hope this is useful

:)

8 0
9 days ago
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Lines m and n are cut by transversal l. Lines m and n are cut by transversal l. On line m where it intersects line l, 4 angles a
babunello [8372]

∠1 and ∠8 are alternate exterior angles while ∠3 and ∠6 are alternate interior angles.

step-by-step explanation:

When transversal l intersects lines m and n, the angles formed outside each line on the opposite side of the transversal constitute alternate angles (like ∠1 and ∠8). In contrast, alternate interior angles appear on opposite sides but are located between the two lines (like ∠3 and ∠6).

Learn More

Keywords: Transversal, angles

5 0
1 month ago
Read 2 more answers
A follow-up study will be conducted with a sample of 20 people from the 300 people who responded yes (support) and no (do not su
PIT_PIT [9090]

Response:

Detailed explanation:

Hello!

Stratified sampling involves the categorization of the population into subgroups based on pre-established criteria for the study. These subgroups consist of homogeneous units concerning the relevant characteristics. In this instance, individuals in the groups will represent only one of the two potential opinions (support or not support) and not both.

The researcher determines the sample size desired, considering several factors such as finances, material availability, and accessibility to experimental subjects (for instance, if they are endangered species, larger sample sizes may not be feasible).

One might conduct proportionate stratified sampling by selecting a proportion of respondents who answered "yes" along with those who answered "no."

In this sampling method, taking a specific proportion from each subgroup allows for a more straightforward extrapolation of results to the overall populations. For example, if you needed a sample size of n = 20, each stratum would ideally contain half, meaning 10 from the “yes” group and 10 from the “no” group.

I hope this is helpful!

4 0
1 month ago
Given a regular octagon, in how many ways can we color one diagonal red and another diagonal blue so that the two colored diagon
zzz [9046]

Answer:

Rotation = 1.

Reflection = 5 or 4.

Step-by-step explanation:

A regular octagon is defined as an octagon with eight equal sides.

To appropriately color one diagonal red and the other blue, ensuring they intersect (inside), we can follow these steps:

=> First, color one diagonal red.

=> Fix the position of another end.

=> Identify the possibilities.

The outcome can be derived from Burnside's Lemma resulting in Rotation = 1 and Reflection = 5 or 4.

7 0
11 days ago
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