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2 years ago

I need help with this problem

Mathematics

1 answer:

leva [86]2 years ago

3 0

Answer:

about 2.253 centimeters

Step-by-step explanation:

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Your firm wants to investigate how much money the typical tourist will spend on their next visit to New York. How many tourists

snow_lady [41]

Answer: 46

Step-by-step explanation:

Given : Margin of error : E= 17

Standard deviation : $\sigma=70$

Critical value for 90% confidence level : $z_{\alpha/2}=1.645$

Formula to find sample size is given by :-

$n=(\dfrac{z_{\alpha/2}\times \sigma}{E})^2$

i.e. $n=(\dfrac{(1.645)\times 70}{17})^2$

$\Rightarrow\ n=45.880700692\approx46$

Hence, the required minimum sample size = 46.

8 0

3 years ago

Read 2 more answers

Help with number 5 please

Goryan [66]

Answer:

22,5 km

Step-by-step explanation:

6 0

3 years ago

Please help me!!!!!!!!!!!!!!!!!

wlad13 [49]

Answer:

The answer is C.

Step-by-step explanation:

3 0

2 years ago

Answer asap

Gnom [1K]

Swap the n with the 7

7-5

Find the answer to 7-5

7-5=2

So the answer is 2

7 0

1 year ago

Harold has 4 classes each morning. Each class is 1 hour long, and there are 10 minutes between classes. The first class is at 8

Viktor [21]

The fourth class ends at 12:30 pm

Solution:

Given that Harold has 4 classes each morning

Each class is 1 hour long, and there are 10 minutes between classes

The first class is at 8 A.M

To find: Time at which fourth class ends

Since each is 1 hour long and 10 minutes gap between classes

First class = 8 A.M to 9 A.M

Second class = 9:10 A.M to 10 : 10 AM

Third class = 10 : 20 AM to 11 : 20 AM

Fourth class = 11 : 30 AM to 12 : 30 PM

Thus the fourth class ends at 12:30 pm

4 0

2 years ago