Miguel and his family are on vacation and notice an advertisement fee of 0.75

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Related Questions

A gumball machine has 300 red gumballs. If the red gumballs are 75% of the total number of gumballs, how many gumballs are in the gumball machine? 225 275375400 BRAINLIST,EXTRA POINTS, 5 STARS, AND HEART
Do these pairs of values (x and y) represent two quantities that are proportional?HELP ME PLEASE
A college professor states that this year's entering students appear to be smarter than entering students from previous years. The college's records indicate that the mean IQ for entering students from earlier years. is 110.3. Suppose we want to sample a smaller number of this year's entering students and carry out a hypothesis test to see if the professor statement can be supported. State the null and alternative hypothesis.
How to estimate the quotient of 49.3 divided by 6
Help pls I’m confused

45% of the population has type o blood. Find the probability that exactly 6 people in a group of 10 random people have type o blood.

Answers

Answer:

0.160

Step-by-step explanation:

Given that:

Percentage population with blood group o = 45%

probability that exactly 6 people in a group of 10 random people have type o blood

Using binomial probability distribution formula :

n = 10, r = 6 ;

Probability of success (p) (population with blood group o = 45% = 0.45

Probability of failure (1 - p) population without blood group o = (1 - 0.45) = 0.55

nCr * p^r * (1 - p)^(n-r)

10C6 * 0.45^6 * 0.55^4

210 * 0.00830 * 0.0915

= 0.1594845

= 0.160

Can someone help me with this problem please

Answers

Answer:

Circumference=2πr or πd

So:

3.14 × 6cm

=18.84cm

Why is math so hard to Figer out

Answers

Answer:

i cant Figer that out.

Answer:

because life is hard

Step-by-step explanation:

ik it sucks i hate it too

The mean breaking strength of a ceramic insulator must be at least 10 psi. The process by which this insulator is manufactured must show equivalence to this standard. If the process can manufacture insulators with a mean breaking strength of at least 9.5 psi, it will be considered equivalent to the standard. A random sample of 50 insulators is available, and the sample mean and standard deviation of breaking strength are 9.32 psi and 0.21 psi, respectively. a. State the appropriate hypotheses that must be tested to demonstrate equivalence.

Answers

Answer:

H0: u ≥ 9.5

Ha: u < 9.5

Step-by-step explanation:

The null hypothesis and the alternate hypothesis are reverse of each other.

The claim is either set as the null or alternate hypothesis

The null hypothesis is : H0: u ≥ 9.5 the mean breaking strength of a ceramic insulator is at least 9.5 which is considered equivalent to the standard.

The alternate hypothesis is: Ha: u < 9.5 the mean breaking strength of a ceramic insulator is less than 9.5 which is not considered equivalent to the standard.

Pls help meeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

kya pls help meeeeeeeeeeeeeeee.

please thanks and follow me.

2Select the correct answer.
Which value is needed to determine a confidence interval for a sample mean?
OA
the margin of error for the proportion
ов.
the population size
OC.
the sample proportion
OD
the standard error of the mean

Answers

The value needed to determine a confidence interval for a sample mean is the standard error of the mean option (D) is correct.

What is a confidence interval for population standard deviation?

It is defined as the sampling distribution following an approximately normal distribution for known standard deviation.

The formula for finding the confidence interval for population standard deviation as follows:

$\rm s\sqrt{(n-1)/(\chi^2_(\alpha/2, \ n-1))} < \sigma < s\sqrt{(n-1)/(\chi^2_(1-\alpha/2, \ n-1))}$

Where s is the standard deviation.

n is the sample size.

$\chi^2_(\alpha/2, \ n-1) and \chi^2_(1-\alpha/2, \ n-1)$ are the constant based on the Chi-Square distribution table:

α is the significance level.

σ is the confidence interval for population standard deviation.

Calculating the confidence interval for population standard deviation:

We know significance level = 1 - confidence level

It is given that:

The value needed to determine a confidence interval for a sample mean is the standard error of the mean.

CI = X + Z(s/√n)

Here CI is the confidence interval

Z is the confidence level

X is the sample mean

Thus, the value needed to determine a confidence interval for a sample mean is the standard error of the mean option (D) is correct.

Learn more about the confidence interval here:

brainly.com/question/6654139

#SPJ2

Answer:

D.thestandarderrorofthemean

Step-by-step explanation:

trust me i got it right Plato

Other Questions

Help me in 5 mins it is dueA pipe can pump 1000 gallons of water in 4 hours.How long would it take the pipe to fill a 2500 gallon pool?4 h8 h10 h25 h

In tilapia, an important freshwater food fish from Africa, the males actively court females. They have more incentive to court a female who has already laid all of her eggs, but can they tell the difference? an experiment was done to measure the male tilapia's response to the smell of female fish. Water containing feces from females that were either pre-ovulatory (they still had eggs) or post-ovulatory (they had already laid their eggs) was washed over the gills of males hooked up to an electro-olfactogram machine which measured when the senses of the males were excited. The amplitude of the electro-olfactogram was used as a measure of the excitability of the males in the two different circumstances. Six males were exposed to the scent of pre-ovulatory females; their readings average 1.51 with a standard deviation of .25. Six different males were exposed to post-ovulatory females; their average readings of 0.87 with standard deviation is .31. Assume that the electro-olfactogram readings were approximately normally distributed within the groups.(A) test for a difference in the excitability of the males with exposure to these two types of females(B) what is the estimated average difference in electro-olfactogram readings between the two groups? What is the 95% confidnece limit for the difference between population means?

What are the coordinates of the vertices of the polygon in the graph that are in Quadrant I? Question 7 options: A) (–3,–4) B) (1,1), (2,2), (2,5), (5,5) C) (2,–3), (3,–4), (5,–4) D) (–4,2), (–2,5)

2 to the Third power -(30÷5) +9