All categories

2 years ago

PLEASE HELP ASAP !!! <33

Mathematics

2 answers:

cupoosta [38]2 years ago

4 0

Answer:

Step-by-step explanation:

I THINK MY BEST ESTIMATE HOPE IT HELPS THOO :))

Brilliant_brown [7]2 years ago

3 0

The answer is 30 hope this helped <3!

You might be interested in

A random sample of 121 students from the University of Oklahoma had a sample mean ACT score of 23.4 with a sample standard devia

Grace [21]

Answer:

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 121

Sample mean = 23.4

Sample standard deviation = 3.65

Level of significance = 0.05

Degree of freedom

$= n - 1 = 120$

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Calculation of critical value:

$t_{critical}\text{ at degree of freedom 120 and}~\alpha_{0.05} = \pm 1.9799$

Putting the values, we get,

$23.4\pm 1.9799(\dfrac{3.65}{\sqrt{121}} )\\\\ = 23.4 \pm 0.6569\\\\ = (22.7431 ,24.0569)\approx (22.74,24.06)$

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

5 0

2 years ago

A retiree investment $6,000 in a saving plan that pays 4% per year what will the account balance be at the end of the first year

allsm [11]

Answer:

$6,240

Step-by-step explanation:

$6,000 x .04 = 240

$6,000 + 240 = $6,240

3 0

2 years ago

Solve for t.<br><br> - 5 t ≥ 70

svlad2 [7]

Answer:

i don't know can you help me please.

3 0

2 years ago

Identify the domain and range to the following relations and state whether or not the relations are functions. State why or why

Vladimir79 [104]

It’s a function because it passes the vertical line test

6 0

2 years ago

Need help with this question

gulaghasi [49]

Answer:

bc=-4

Step-by-step explanation:

4x -1 is -4. because your adding a negative and a positive

8 0

2 years ago

Read 2 more answers