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zvonat [6]
4 years ago
7

The producer of a certain medicine claims that its bottling equipment is very accurate and that the standard deviation of all it

s filled bottles is 0.1 ounce or less.
A sample of 20 bottles showed a standard deviation of .11.

The test statistic to test the claim is _____.

a. 20
b. 22.99
c. 4.85
d. 400
Mathematics
1 answer:
Alekssandra [29.7K]4 years ago
7 0

Answer:

x^2 =  22.99

Step-by-step explanation:

Given data:

standard deviation of all filled bottles = 0.1

overall hypothesis is significant at\sigma = 0.1

for test statistics, use chi-square test

x^2 = \frac{(n-1) s^2}{\sigma^2}

where

n - sample size

s =simple deviation

x^2 =\frac{(20-1)0.011^2}{0.1^2}

x^2 =  22.99

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Buffalo Bill currently weighs 202 lb. He wants to weigh 180 lbs for his reunion which is 35 days from today. How many pounds per
Nostrana [21]

Answer:

He must lose 4.4 pounds per week.

Step-by-step explanation:

Buffalo Bill currently weighs 202 lb. He wants to weigh 180 lbs for his reunion.

This means that he needs to lose 202 - 180 = 22 lb.

35 days from today.

Each week has 7 days. So this is 35/7 = 5 weeks from now.

How many pounds per week must he lose?

22 pounds in 5 weeks, that is 22/5 = 4.4 pounds per week.

4 0
3 years ago
(Ill give brainliest)
Anna007 [38]

Answer:

522

Step-by-step explanation:

3 0
3 years ago
Help i dont understand Pls help :(
olya-2409 [2.1K]

Answer:

x = 1?

Step-by-step explanation:

I think functions are basically just variables but extra so they both act the same. I'm not 100% sure but I Think

if f(x) = -5x + 1 when f(x) = 6,

replace f(x) with 6 so,

6 = 5x + 1

1 - 6 = 5x + 1 - 1

(subtract one on both sides to isolate the variable)

5 = 5x

5/5 = 5x/5

(to Actually isolate the variable lol

1 = x or x = 1

I believe is the answer? please comment if I'm wrong

*I WAS TOLD MY THOUGHT PROCESS IS WRONG ANYONE WHO SEES THIS PLEASE DISREGARD

5 0
3 years ago
The formula F=95C+32 changes a temperature reading from the Celsius scale C to the Fahrenheit scale F. What is the temperature m
Law Incorporation [45]

Answer:

122°F

Step-by-step explanation:

F=(50×9/5)+32

= 122°F

8 0
3 years ago
3 lines are shown. A line with points C, A, F intersects a line with points E, A, B at point A. A line extends from point A to p
Verizon [17]

Answer:

m < EAD = 29 degrees

m < CAB = 119 degrees

Given :

The question states that m < CAE = m<FAB = 61 degrees and m<DAF = 90 degrees

Solution:

1. Since line CAF and EAB intersect each other, m<CAF = m< EAF - (opposite vertical angles are equivalent)

2. m<BAC + m<EAC = 180 degrees (sum of linear pair)

3. m<CAB = 180 degrees - m<EAC

4. Equation 1: m<CAB = m<EAF = 119 degrees

5. m<EAF = m<EAD + m< DAF

6. m<EAD = m<EAF - m<DAF

7. m<EAD = 119 degrees-90 degrees = 29 degrees

Hope this helps!!! :)

Attached photo work is created by another brainly user named tallinn.

Click on this link to find his work and possibly more information of the answer. Thanks!

5 0
3 years ago
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