A doctor took a random sample of n=6n=6n, equals, 6 patients to see how long they each spent in the waiting room. She wants to construct a ttt interval for the mean waiting time with 99\%99%99, percent confidence. The times in the sample were roughly symmetric with a mean of \bar x=8.5 x ˉ =8.5x, with, \bar, on top, equals, 8, point, 5 minutes and a standard deviation of s_x=2.8s x ​ =2.8s, start subscript, x, end subscript, equals, 2, point, 8 minutes. What critical value t^*t ∗ t, start superscript, times, end superscript should she use? Choose 1 answer:

Answers

Answer 1

Answer:

4.032

Step-by-step explanation

Khan Academy

Answer 2

To find the critical value t^*t ∗t, start superscript, times, end superscript for a t-interval with 99% confidence and n=6, we need to use a t-distribution with degrees of freedom df=n−1=6−1=5.

What is t-distribution table?

A t-distribution table is a table that lists critical values for the t-distribution.

The t-distribution is a probability distribution that is used in hypothesis testing when the sample size is small or when the population standard deviation is unknown. The table lists critical values for various levels of significance and degrees of freedom.

Using a t-distribution table or calculator with 5 degrees of freedom and a 99% confidence level, we find the critical value t^*t ∗t to be approximately 4.032.

Therefore, the doctor should use t^*t ∗t = 4.032 for constructing the t-interval for the mean waiting time.

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Related Questions

Translate each inequality
"18 less than the quotient of a number and -5 is no less than 31"

Answers

Answer:61

Step-by-step explanation:

Please help ASAP!!!!

Answers

- 3/5

Step-by-step explanation:

1(y) = 1 x y

= 1 x (- 3/5)

= - 3/5

in triangle ABC, AB//QR and AP:PB=BR:TC.with reasons ,prove that PQ//BC​

Answers

huh is there supposed to be a picture?

What is the percent of $432

Answers

Answer:

%23.15

Step-by-step explanation:

im not sure what u mean entirely

Answer:

its should be 100%. your question is not that clear. What persent of what is 432 should be question. In the provided questions the answer is 100% because it is an output value.

Please answer ill give brainliest
Vertex C and vertex D are plotted on the graph. Plot vertexes A and B to form a rectangle with an area of 36 square units. Plot vertex E at (2, 4). Source StylesFormat

Answers

( - 4, 4) ; ( -4 , -2 ); ( 2 , - 2) would be the answer:)

Point T bisects UV. Find UV if UT = 2 inches

Answers

4 inches. Bisect means the halfway point.

PLEASE HELO ME AND EXPLAIN PLEASE. AND PLEASE SHOW IN STEPS!! i will mark brainliest if you get it correct!

Answers

Step-by-step explanation:

The height of the swipe card is given by :

[tex]h(t)=-3t^2+15t+18[/tex] .....(1)

We need to find the maximum height of the swipe card and the time to reach the maximum height.

For maximum height, put dh/dt = 0

So,

[tex]\dfrac{d}{dt}(-3t^2+15t+18)=0\\\\-9t+15=0\\\\t=\dfrac{15}{9}\\\\t=1.67\ s[/tex]

It will take 1.67 seconds to reach the maximum height.

Now, put t = 1.67 s in equation (1).

[tex]h(1.67)=-3(1.67)^2+15(1.67)+18\\\\=34.68\ feet[/tex]

Hence, the maximum height of the swipe card is 34.68 feet and the time to reach this height is 1.67 s.

Solve 7x − 2(x + 1) = 6x + 14. (5 points)

−12

12

−16

16

Answers

Answer:

C

X=-16

Step-by-step explanation:

PLS I NEED HELP WITH THIS!!!!

Answers

Answer:

Step-by-step explanation:

The volume of a cylinder is

[tex]V=h\pi r^2\\ \\ h=8,\ r=4\\ \\ V=8\pi (4^2)\\ \\ V=8(16)\pi \\ \\ V=128\pi \units^3[/tex]

Max is drawing plans for a garden, measured in feet, which is shown below on the coordinate plane. Max has two vertices of the garden at points (Negative 1, 2) and (Negative 1, Negative 2).

Answers

Answer:

The other two vertices are (4 , -2) and (4 , 2)

Answer:

The answer is (B)

Step-by-step explanation:

Max is drawing plans for a garden, measured in feet, which is shown below on the coordinate plane. Max has two vertices of the garden at points (Negative 1, 2) and (Negative 1, Negative 2).

On a coordinate plane, points (negative 1, 2) and (negative 1, negative 2) are plotted.

At which points should Max have the other two vertices in order to make the area of his garden 20 square feet?

(2, Negative 2) and (2, 2)

✅(4, Negative 2) and (4, 2)

(3, Negative 2) and (3, 2)

(5, Negative 2) and (5, 2)

Natalia is making a model of a statue using a scale in which 7 centimeter equals 4 feet. If the model is 3.5 centimeters wide, what is the actual width of the statue, in feet? Your answer can be exact or rounded to two decimal places,​

Answers

Answer:

2 ft

Step-by-step explanation:

[tex] \dfrac{7}{4} = \dfrac{3.5}{x} [/tex]

[tex] 7x = 4 \times 3.5 [/tex]

[tex] x = 2 [/tex]

Answer: 2 ft

In a geometric sequence, the ratio between consecutive terms is?

Answers

In a geometric sequence, the ratio between consecutive terms is always the same.

5.
Loren is running in a long distance race. She is able to keep a steady pace of 10 feet per second.

Answers

Answer:

a or c Im not sure

Step-by-step explanation:

I think b though

The line which represents the speed as 10 feet per second is line B thus none of the given options are correct.

What is a graph?

A graph is a diametrical representation of any function between the dependent and independent variables.

For example y = x² form a parabola now by looking at only the graph we can predict that it has only a positive value irrespective of the interval of x.

As per the given,

Loren is running at speed of 10 feet per second.

Speed = distance covered/time taken

10 = distance covered/time taken

In line B, the ratio of distance covered/time taken is 10.

Thus, line B will be correct.

Hence "The line which represents the speed as 10 feet per second is line B thus none of the given options are correct".

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What is the height of a cylinder If the Volume is 250 ft and the diameter is 87​

Answers

Answer:

h = 0.13

Step-by-step explanation:

Cylinder Volume Formula:

V = πr²h

Given:

V = 250

r = d/2 = 43.5

π = 3.14

Work:

V = πr²h

250 = π43.5²h

250 = (3.14)(1892.25)h

250 = 5941.665h

h = 250/5941.665

h = 0.13

9. Given that P = (-1,16) and Q = (1, 9), find the component form and
magnitude of vector QP (Q is initial and Pis terminating). *

Answers

To find the component form, u only need to know how to substitute figures for letters. What do I mean by this?

If initial side is (x1,y1)
Then x1 = -1, and y 1 = 16
If the terminal side is x2, y2
Then x2 =1 and y2 =9

This component from p is x2-x1 y2-y1
In this case <[1-(-1)], (9-16)
Which give us
2,-7

If p = x ,y using Pythagorean’s theorem
2(2) + (-7)(7)
4+49
53
Square root of 53 is
7.28010988928
7.3

How does the cost of shirts compare to the cost of the magnets? *
The cost of the shirts is ____ times as much as the cost of magnets.

Answers

Answer:

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Step-by-step explanation:

Answer:

$0.95

Step-by-step explanation:

if there 3 cats and 3 dogs how mush would be together

Answers

Answer:

6

Step-by-step explanation:

3+3 = 6

Answer:

There is 1 cat for each dog so the ratio would be 1:1 together.

Step-by-step explanation:

This means there are twice as many cats as dogs, or half as ... The ratio of 6:3 reduces to the ratio of 1:1

please help as soon as possible and please don’t take advantage of the points


a:1 hour
b:1.5 hours
c:2 hours
d: 3.5 hours
e:5.5 hours

Answers

Answer:

2 hours

Step-by-step explanation:

What are two components of a sample space

Answers

i’m so sure, i’m sorry to :((

Felicia got a designer job with a company that pay $55,000/year. What is Felicia's gross monthly income?

Answers

Answer:

Felicia's gross monthly income = $4,583.33 (Approx.)

Step-by-step explanation:

Given:

Annual income = $55,000

Find:

Felicia's gross monthly income

Computation:

Gross income per month = Annual salary / Number of month in year

Gross income per month = Annual salary / 12

Felicia's gross monthly income = Annual salary / 12

Felicia's gross monthly income = 55,000 / 12

Felicia's gross monthly income = $4,583.33 (Approx.)

Which graph represents the linear function y=1/5x-2​

Answers

Answer: The second one

Step-by-step explanation: Y-int is -2 and the slope is 1/5 so we know its going up but very slowly

What is z4 + z4 + z4 + z4?

Answers

Answer:

4z

Step-by-step explanation:

PLEASE HELP ME ILL MAKE BRAINLIEST!!!!!
I need the correct answer

Answers

Answer:

56.7

Step-by-step explanation:

Hello There!

Trigonometric Ratios

sin = opposite divided by hypotenuse

cos = adjacent divided by hypotenuse

tan = opposite divided by adjacent

we need to find x and we are given its opposite side length and the hypotenuse

so the trigonometric ratio we need to use is sin

knowing that sin = opposite side divided by hypotenuse we create an equation

[tex]sin(x)=\frac{51}{61}\\\frac{51}{61} = .8360655738\\arcsin(sinX)=x\\arcsin(.8360655738)=56.72695659[/tex]

our final step is to round to the nearest tenth of a degree

so we can conclude that the measure of angle A is 56.7

note: arcsin = inverse of sin

Answer:

56.7

Step-by-step explanation:

so opposite the angle we are working out is "o"And the longest side is the hypotunese but just remember it as "h"a is the remaining side but does not have a value and is blank therefore we need to worry about this sideWe have "o" and "h" which is the formula triangle with sin o/sin*hBut as we are working out the angle(sin)  we change the formula so it is sin=0/hsin=51/61sin=0.8then you click the shift or 2nd function button on your calculator and the sin button and this is your answer 56.7so the angle is 56.7

Find the perimeter of this semi-circle with diameter 62cm.
Give your answer as an expression in terms of Pi

Please include the formula

Answers

Step-by-step explanation:

hope it helps

have a great day!!

hello ! does anyone know how I could get x and y from this equation :


3x +4y > 2

any help would be appreciated ! :)

Answers

Step-by-step explanation:

x,y£R

x and y are element of real numbers

any number you set for x you get which is strictly greater than 2

Find the ending
balance:
$3,000 for 30 years
3.5% annual simple
interest

Answers

rttrtbtrertbr4gbigbnerunburhurh

Log 8 1/32 is equaled to

Answers

Answer:

I think the answer wold be -5/3 or -1.666666667 .

The value of the given expression is,

[tex]log_8 \frac{1}{32}[/tex] = -3/5

The given logarithmic expression is,

[tex]log_8 \frac{1}{32}[/tex]

Since we know that,

The power to which a number must be increased in order to obtain additional values is referred to as a logarithm. The easiest approach to expressing enormous numbers is this manner. Numerous significant characteristics of a logarithm demonstrate that addition and subtraction logarithms may also be represented as multiplication and division of logarithms.

We can write the given expression as,

[tex]log_8 \frac{1}{32}[/tex] =   [tex]log_8 32^{-1[/tex]

          = - [tex]log_8 32[/tex]                  [ [tex]log_a b^x = x log_a b[/tex]]

          = - [tex]log_{2^3} 2^5[/tex]

          =  - [tex]\frac{3}{5} log_{2} 2[/tex]                 [ [tex]log_{a^y} b^x = \frac{x}{y} log_a b[/tex]]

          = -3/5                       [  [tex]log_{a} a = 1[/tex]]

Hence,

[tex]log_8 \frac{1}{32}[/tex] = -3/5

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finding angle measures with trig. Find the missing angle measures. Round to the nearest whole number​

Answers

Answer:

this is your answer look it once

3/4+(1/3divided by 1/6)-(-1/2)=
HURRY pls i need a answer ASAP

Answers

Answer:

Step-by-step explanation:

Answer:

3.25

Step-by-step explanation:

Luke was packing up his old toys. He managed to squeeze eight toys into a box. If Luke filled up seven boxes, how many toys did he pack total?

Answers

Answer:

56????

Step-by-step explanation:

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