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Westkost [7]
2 years ago
15

...................................................................

Mathematics
1 answer:
kompoz [17]2 years ago
7 0

plz write your proper question

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The heights of dogs, in inches, in a city are normally distributed with a population standard deviation of 3 inches and an unkno
Nitella [24]

Answer: 1.2703

Step-by-step explanation:

Given : Sample size : n= 17, which is a small sample (n<30), so we use t-test.

Significance level : \alpha:1-0.90=0.1

Then , Critical value : t_{n-1,\alpha/2}=t_{16, 0.05}\pm1.745884

Standard deviation: s=3\text{ inches}

The formula to find the margin of error : -

E=t_{n-1,\alpha/2}\dfrac{s}{\sqrt{n}}\\\\\Rightarrow\ E=(1.745884)\dfrac{3}{\sqrt{17}}\\\\\Rightarrow\ E=01.27031720154\approx1.2703

Hence, the error bound (EBM) of the confidence interval with a 90% confidence level.=1.2703

6 0
2 years ago
Y=2/3x-1 ×=-6,-3,0,3​
Y_Kistochka [10]

Answer:

y=-5,-3,-1,1 are value for y

4 0
2 years ago
Water in a 14mm diameter pipe flows at 2m/s. How many liters flow along the pipe in 1 minute
Over [174]

Answer:

The flow rate will be say around 10000 liters per hour. Or 180 liters per minute.

Step-by-step explanation:

6 0
2 years ago
What is the slope of the line represented by the equation y = –1/2x + 1/4?
JulsSmile [24]
The slope of the line is -1/2
5 0
2 years ago
Read 2 more answers
What is 89,659 rounded to the nearest hundred thousand?
n200080 [17]

<u><em>Answer:</em></u>

100,000


<u><em>Explanation:</em></u>

To round a number to the nearest hundred thousands, we need to check the digit in the ten thousands position:

1- If this digit is <u>less than 5</u>, we will round down. This means that the digit in the hundred thousands position will remain the same and all digits after it will be converted to zeroes

2- If this digit is <u>equal to or greater than 5</u>, we will round up. This means that we will add one to the digit in the hundred thousands position and convert all digit after it to zeroes


Now, the given number is:

89,659

The digit in the hundred thousands position is 0

The digit in the ten thousands position is 8 which is greater than 5. Therefore, we will round up following rule 2 written above

This means that 89,659 rounded to the nearest hundred thousands would be 100,000


Hope this helps :)

4 0
3 years ago
Read 2 more answers
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