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3 years ago

9

You believe the population is normally distributed and you know the standard deviation is σ = 6.9 σ = 6.9 . You obtain a sample

mean of M = 64.4 M = 64.4 for a sample of size n = 32 n = 32 . What is the critical value for this test?

1 answer:

kaheart [24]3 years ago

8 0

The critical values is 16

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0.5 is what type of number?

zepelin [54]

0.5 is a rational number.

4 0

3 years ago

Read 2 more answers

SOMEONE PLEASE HELP ME!!! I REALLY NEED SOME HELP!!!

Lostsunrise [7]

Answer:

A. (1, -2)

Step-by-step explanation:

We can substitute the variables of x and y into the inequality of $y < -|x|$ .

Let's start with A, -2 being y and 1 being x.

$-2 < - |1|$

The absolute value of 1 is 1, and negating that gets us -1.

$-2 < -1$

Indeed, -2 is less than -1! So A is a solution to the inequality.

Let's test the rest of them, just in case.

For B:

$-1 < -|1|$

Absolute value of 1 is 1, negating it is -1.

$-1$

-1 is EQUAL to -1, not less than it, so is not a solution to the inequality.

Let's try C.

$0 < -|1|$

Absolute value of 1 is 1, negating it is -1.

$0 < -1$

0 is GREATER than -1, so that is not a solution to the inequality.

Hope this helped!

4 0

3 years ago

A web designer charges a $200 fee plus $50 per hour to build a website. Which equation represents the total cost, y, to a custom

goldfiish [28.3K]

D. y = 50x + 200 is your answer

5 0

3 years ago

Suppose that each semester at a particular community college Manuel has to pay $1478 in tuition and $121 in fees.

Kamila [148]

Answer:

Step-by-step explanation:

<em>Let x be time, in semesters, remaining before Manuel graduates</em>. We find that Manuel's expenses are:

$1478/semester in tuition, and

$121/semester in fees

1. <u>x semesters remaining: fees</u>

Remaining cost for fees, y, is the product of the fee times the number of semesters, x:

y =($121/semester)*x

y = ($121)*x

2. <u>x semesters remaining: tuition</u>

Remaining cost, y, is the product of the tuition (times the number of semesters, x.

y = ($1478/semester)*x + ($121/semester)*x

y = ($1599)*x

3. <u>x semesters remaining: tuition and fees</u>

Remaining cost, y, is the sum of the products of the tuition (times the number of semesters, and the fees (tix.

y = ($1478/semester)*x + ($121/semester)*x

y = ($1599)*x

5 0

1 year ago

Help!!!!!!!!!!!!!!!!!!!

Furkat [3]

Here, (7 * 9) = (7 * 10) - (7 * x)

Here, Take 7 as a common factor according to distributive property:

= 7(10 - x)

Now, 10-x = 9
x = 10-9 = 1

In short, Your Answer would be 1

Hope this helps!

3 0

3 years ago