Solve for x. m<8 = + 52

If h(x) is the inverse of f(x), what is the value of h(f(x))? оо 0 1 ООО o f(x)

mart [117]

Answer:

x.

Step-by-step explanation:

If h(x) is the inverse of f(x) them h(f(x)) = x.

7 0

4 years ago

A recent study reported that diastolic blood pressures of adult women in the United States are approximately normally distribute

Zina [86]

Answer:

Proportion of women having blood pressures between 88.1 and 89.4 is 3.99% or close to 4%.

Step-by-step explanation:

We are given that a recent study reported that diastolic blood pressures of adult women in the United States are approximately normally distributed with mean 80.3 and standard deviation 8.6.

Let X = blood pressures of adult women in the United States

So, X ~ N( $\mu=80.3,\sigma^{2} =8.6^{2}$ )

The z score probability distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = population mean

$\sigma$ = population standard deviation

So, Probability that women have blood pressures between 88.1 and 89.4 is given by = P(88.1 < X < 89.4) = P(X < 89.4) - P(X $\leq$ 88.1)

P(X < 89.4) = P( $\frac{X-\mu}{\sigma}$ < $\frac{89.4-80.3}{8.6}$ ) = P(Z < 1.05) = 0.85314

P(X $\leq$ 88.1) = P( $\frac{X-\mu}{\sigma}$ $\leq$ $\frac{88.1-80.3}{8.6}$ ) = P(Z $\leq$ 0.89) = 0.81327

Therefore, P(88.1 < X < 89.4) = 0.85314 - 0.81327 = 0.0399 or approx 4%

Hence, proportion of women have blood pressures between 88.1 and 89.4 is 4%.

7 0

4 years ago

You represent a chemical company that is being sued for paint damage to automobiles. You want to support the claim that the mean

denpristay [2]

Correct question is;

You represent a chemical company that is being sued for paint damage to automobiles. You want to support the claim that the mean repair cost per automobile is more than $650. How would you write the null and alternative hypotheses?

A) State the null and alternative hypotheses in words (context of the problem)

B) Write the null and alternative hypotheses in appropriate symbols (population parameters μ, σ or p)

C) Describe in words Type I error (the consequence of rejecting a true null hypothesis.)

D) Describe in words Type II error (the consequence of failing to reject a false null hypothesis.)

Answer:

A)In words;

Null hypothesis is that the cost is $650

Alternative hypothesis is that the cost is not $650

B) Null hypothesis; μ = 650

Alternative hypothesis; μ ≠ 650

C) Type I Error will be to make a claim that the repair cost is not $650, when it is actually $650.

D) Type II Error will be to make a claim that the repair cost is not $650, but fail to reject the claim that it is $650.

Step-by-step explanation:

We are told that You want to support the claim that the mean repair cost per automobile is more than $650.

Thus;

A)In words;

Null hypothesis is that the cost is $650

Alternative hypothesis is that the cost is not $650

B) Null hypothesis; μ = 650

Alternative hypothesis; μ ≠ 650

C) Type I Error will be to make a claim that the repair cost is not $650, when it is actually $650.

D) Type II Error will be to make a claim that the repair cost is not $650, but fail to reject the claim that it is $650.

6 0

3 years ago

Need help solving these questions need answers fast

const2013 [10]

Answer:

First image: Q

Second image: I think B

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

10.3)200.3865 10.3 divided by 200.3865

Varvara68 [4.7K]

Answer:

1

Step-by-step explanation:

200.3865 divided by 200.3865 equals 1

7 0

3 years ago

Solve for x. m<8 = + 52​

Solve for x. m<8 = + 52