Bob and Lashonda want to find the mean weight of cats at their local pet adoption center. So they each randomly select cats at the shelter and measure the weights.

The results are shown below (in pounds). Use the data to answer the questions.


Bob's sample:
15, 8, 20, 9, 12, 19

Lashonda's sample:
8, 6, 10, 11


(a) What is the sample size for Bob's sample?


(b) What is the sample size for Lashonda's sample?

(c) Suppose you had to choose one sample to estimate the mean.

Which sample is more likely to give a good estimate of the mean?

A: Bob's sample


B: Lashonda's sample

Why?


A: It has the smaller mean.


B: It has the larger mean.


C It has the smaller sample size.


D It has the larger sample size.

Answer:

6. peach , plum, crab apple

7. pepper tree, common apple, pear

8. because the graph is lowered And that the boxes are needed to go higher to get to the other numbers and the graph is misleading and etc.

9. black cherry, magnolia, live oak, sweet cherry.

10.because the graph is lowered And that the boxes are needed to go higher ot get to the other numbers and the graph is misleading

Step-by-step explanation:

I don't really understand 8 and 10 so this all i got

Answer:

5 x 2 -3 = 7

Step-by-step explanation:

i mean.... thats all

Answer:

12

Step-by-step explanation:

1:3 multiply them by 4 for 4 juice cans

Answer:

The answer would be A, 12.

Step-by-step explanation:

The ratio of juice to water is 1:3. 1 being the amount of juice, and 3 being the amount of water. If Maria used 4 cans of juice, that makes the new ratio 4:w. W can stand for the amount of water. 1x4=4 so we can multiply 3x4=12.

Mark brainliest please! :)

Answer:

3

Step-by-step explanation:

3,3,3,6,7,7

the mode is the number the occurs the most and 3 is there 3 times so it is the mode

Answer:

3

Step-by-step explanation:

Since 3 occurs the most in the set of data, it is the mode.

Mode: The mode is the value that appears most frequently in a data set.

I hope this helps! Have a great day! :)

answer:

2. 10 km

4. 20 km

step-by-step explanation:

2 — 5 X 2 = 10 km

4 — 10 X 2 = 20 km

Answer:

Y ≈ 54.998°

Step-by-step explanation:

Cos Y = .5736

=> Y = [tex]cos^{-1}[/tex](.5736)

=> Y ≈ 54.998

Answer:

The answer is the first option just cause i checked on calculator and boith equaled the same thing 3072

Step-by-step explanation:

Answer:

a. At the 0.05 level of significance,  there is evidence that the mean life is different from 6,500 hours.

b. The p value= ≈ 0.00480 for z- test which is less than 0.05 and H0 is rejected .

The p value= 0.006913 for t- test which is less than 0.05 and H0 is rejected for 49 degrees of freedom.

c. CI [6583.336 ,6816.336]

d.  The range of CI [6583.336 ,6816.336] tells that the cfls having a different mean life lie in this range.

Step-by-step explanation:

Population mean = u= 6500 hours.

Population standard deviation = σ=500 hours.

Sample size =n= 50

Sample mean =x`=  6,700 hours

Sample standard deviation=s=  600 hours.

Critical values, where P(Z > Z) =∝ and P(t >) =∝

Z(0.10)=1.282  

Z(0.05)=1.645  

Z(0.025)=1.960  

t(0.01)(49)= 1.299

t(0.05)= 1.677  

t(0.025,49)=2.010

Let the null and alternate hypotheses be

H0: u = 6500 against the claim Ha: u ≠ 6500

Applying Z test

Z= x`- u/ s/√n

z= 6700-6500/500/√50

Z= 200/70.7113

z= 2.82=2.82

Applying  t test

t= x`- u /s/√n

t= 6700-6500/600/√50

t= 2.82

a. At the 0.05 level of significance,  there is evidence that the mean life is different from 6,500 hours.

Yes we reject H0  for z- test as it falls in the critical region,at the 0.05 level of significance, z=2.82 > z∝=1.645

For t test  we reject H0   as it falls in the critical region,at the 0.05 level of significance, t=2.82 > t∝=1.677 with n-1 = 50-1 = 49 degrees of freedom.

b. The p value= ≈ 0.00480 for z- test which is less than 0.05 and H0 is rejected .

The p value= 0.006913 for t- test which is less than 0.05 and H0 is rejected for 49 degrees of freedom.

c. The 95 % confidence interval of the population mean life is estimated by

x` ±  z∝/2  (σ/√n )

6700± 1.645 (500/√50)

6700±116.336

6583.336 ,6816.336

d. The range of CI [6583.336 ,6816.336] tells that the cfls having a different mean life lie in this range.

Answer:

the second company

Step-by-step explanation:

the second company produces 50,000 more crackers an hour than the first company

Answer:

√14 or 3.74

Step-by-step explanation:

_________________

Answer:

√14 or 3.74

Step-by-step explanation:

x = 3.74

I calculated this myself, and I got the answer 3/4, but I'm trash at explaining long problems. So here is what I found to help explain it. It's not a link.

"If (p, r) lies on the line y = x + b, then

r = p + b…. (1)

If (2p, 5r) lies on the line y = 2x + b, then

5r = 2(2p) + b

or 5r = 4p + b…. (2)

Subtracting equation (1) from (2), we get

5r - r = 4p + b - p - b

4r = 3p or r/p = 3/4"

Since I don't believe in plagiarism here's the person who is a life saver at explaining things.

(Mohammad Faizan)

PS. I really did try to explain it myself, only to give myself a headache, so please don't be mad and report me. I only wanted to help.

Answer:

a

Step-by-step explanation:

Answer: False

=============================================================

Explanation:

The radical is one step away from being fully isolated. We would apply the rule that [tex]\frac{\sqrt{A}}{\sqrt{B}} = \sqrt{\frac{A}{B}}[/tex]

In this case,

[tex]\frac{\sqrt{x+3}}{\sqrt{x-1}} = \sqrt{\frac{x+3}{x-1}}[/tex]

Meaning that the equation

[tex]\frac{\sqrt{x+3}}{\sqrt{x-1}} =3[/tex]

is the same as

[tex]\sqrt{\frac{x+3}{x-1}} = 3[/tex]

From here, we square both sides and use algebra to isolate x.

Answer:

Segment

Step-by-step explanation:

Its only part of the line.

Answer:

The answer is ray

Step-by-step explanation:

Answer:

0 because it's purified water :)

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

answer is right there, you only asked for a number.

I'd say 13, hope this helps

Step-by-step explanation:

Answer:

8 1/2

Step-by-step explanation:

Answer:

Column 1(X)      Column 2(mean - X)

  125                   -13

  137                     -1

  138                     0

  145                     7

  145                     7

Mean = 138

Mean Absolute Deviation : 5.6

Answer:

for all the lazy readers on top the answer is.. B. 5.6:)

Step-by-step explanation:

Answer:

20 cyclists

Step-by-step explanation:

In 2007 only two bikes are there which mean only 20 cyclists participated and that is the least amount out of all years

Answer:

if each bicycle is ten go by multipls of 10

it's in 2007

and of you count by 10 that's 20

=========================================================

Explanation:

There are 7 dimes and 3 pennies, leading to 7+3 = 10 coins total.

The probability of not picking a penny is 7/10. If the first coin is put back, then the probability doesn't change for the second selection.

The probability of getting two dimes is (7/10)*(7/10) = 49/100 when the first coin is replaced.

If the first coin is not replaced, then the answer would be (7/10)*(6/9) = 42/90 = 7/15

Answer:

Therefore, 512/128 simplified to lowest terms is 4/1.

Step-by-step explanation:

Reduce 512/128 to lowest terms

The simplest form of  

512

128

is  

4

1

.

Steps to simplifying fractions

Find the GCD (or HCF) of numerator and denominator

GCD of 512 and 128 is 128

Divide both the numerator and denominator by the GCD

512 ÷ 128

128 ÷ 128

Reduced fraction:  

4

1

Therefore, 512/128 simplified to lowest terms is 4/1.

Answer:

340.4 in³

Step-by-step explanation:

volume= (½× 8 × 6.9 × 10) + (⅓×½×8×6.9×7)

= 276 + 64.4 = 340.4 in³

Answer:

A = 12

Step-by-step explanation:

First you need to get the length from the perimeter, the formula is l= p/2 - w

After using the formula, you would get 6 for length. The formula for the area of a rectangle is a = lw, so you would multiply 6 and 2 which would give you 12 as your answer.

I apologize if I made any grammar mistakes or if it is unclear.

Answer:

I got area is 12 too

Step-by-step explanation:

2x2=4 because 2 widths

16-4 to find the 2 lengths added up

12÷2 to find the length

6x2=12 because length times width

Answer:

D ; 15 cm

Step-by-step explanation:

The graph which matches the distribution of the data is D. This can be known by visually pairing Kristen's data on the y-axis to Eddie's data on the x - axis.

The Numbe rof centimeters Kristen has left to knit when Eddie has 13 cm is about 15 cm. This can be obtained by tracing the poi t 12 upward and tracing its intersection with the best fit line to the y-axis.

Answer:

D ; 15 cm

Step-by-step explanation:

The graph which matches the distribution of the data is D. This can be known by visually pairing Kristen's data on the y-axis to Eddie's data on the x - axis.

The Numbe of centimeters Kristen has left to knit when Eddie has 13 cm is about 15 cm. This can be obtained by tracing the poi t 12 upward and tracing its intersection with the best fit line to the y-axis.

Answer:

157 books in each row

Step-by-step explanation:

24 rows=3768 books

1 row=3768/24 books

=157 books

Therefore,Each row contains 157 books

Mark this answer as brainliest....

Answer:

A satellite is a moon, planet or machine that orbits a planet or star. ... Usually, the word "satellite" refers to a machine that is launched into space and moves around Earth or another body in space. Earth and the moon are examples of natural satellites. Thousands of artificial, or man-made, satellites orbit Earth.

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

Add 5.3 + 1.7 and you get 7 (7 is the base of the triangle). Multiply 7 by the height (6) and you get 42. When you put 2 triangles together, it will create a quadrilateral. "Cut the quadrilateral in half" and you will get your triangle's area. The area is 21 :)

Answer:

53.9 square units was my answer, but I learned that it was 21 !

Answer:

Letter a)

Step-by-step explanation:

quizlet