All categories

2 years ago

Is the average amount spent on textbooks per semester by accounting majors significantly

1 answer:

7 0

A confidence interval is simply the range of estimates for an unknown parameter, which is defined as an interval with a lower bound and an upper bound.

<h3>What is a confidence interval?</h3>

Your information is incomplete as the data is not given. Therefore, an overview of the confidence interval will be given.

A 90% confidence interval means that the researcher is 90% confident that the values of the results will simply fall between the upper and lower limits if the procedure is repeated again.

You can find a confidence level for data by simply taking half of the size of the confidence interval, then multiplying it by the square root of the sample size, and then dividing by the sample standard deviation.

Finally, look up the resulting Z or t score in a table in order to find the level.

Learn more about confidence interval on:

brainly.com/question/15712887

You might be interested in

Tabitha ate 1/4 of a sub and jordan ate 2/3 of the sub. how much of the sub was left over?

sergejj [24]

Answer:

1/12

Step-by-step explanation:

Total sub consumed = ¼ + ⅔

= [3(1) + 4(2)]/12 (LCM is 12)

= 11/12

Left = 1 - 11/12 = 1/12

8 0

3 years ago

Four friends ordered a pizza cut into eight slices. The whole pizza was eaten, with each friend eating a different number of sli

raketka [301]

Answer:

{0,1,3,4}

Step-by-step explanation:

Given, total no of slices=8.

Total no of friends=4.

also each friend didnt ate more than the other three.

let a,b,c,d be no of slices ate by the friends 1,2,3,4 respectively.

given sum of a+b+c+d=8.

now applying the second condition

$a\leq b+c+d \\b\leq c+d+a\\c\leq a+b+d\\d\leq a+b+c$

so each of a,b,c,d must be less than or equal to 4.

which means 5 values are possible{0,1,2,3,4}.from this set you have to select 4 values such that their sum is 8.hence, those values are {0,1,3,4}.

7 0

3 years ago

Read 2 more answers

Find the missing value of x and y.

scoray [572]

Step-by-step explanation:

tan 60 = 21 ÷ y

1.73 = 21 ÷ y

y = 21 ÷ 1.73

y = 12.14

tan 30 = x÷ 12

0.6 x 12 = x

x = 7.2

4 0

3 years ago

Alina measured a distance to be 2.18 miles. what is the margin of error? 2.1 miles to 2.2 miles 2.175 miles to 2.185 miles 2.185

Gre4nikov [31]

Answer:

(b) 2.175 miles to 2.185 miles

Step-by-step explanation:

When a value is rounded, the original "exact" value is presumed to be within 1/2 of the value of one least-significant unit of the rounded number.

<h3>Application</h3>

A rounded value of 2.18 has a least-significant digit with a place value of 0.01 units. Half that value is the "margin of error". That is, the range of numbers that would be rounded to 2.18 is ...

2.18-0.005 ≤ x < 2.18+0.005

2.175 ≤ x < 2.185 . . . . miles

7 0

2 years ago

Find the length of side x in simplest radical form with a rational denominator.<br> 45°<br> X<br> V6

sdas [7]

Answer:

x = 6

Step-by-step explanation:

7 0

3 years ago