Question
Asked Nov 3, 2019
1 views

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

μ = 95; σ = 18

P(x ≥ 90) =

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Related Statistics Q&A

Find answers to questions asked by student like you
question_answer

Q: 1) For a two-tailed hypothesis using a z-distribution, find the critical values (z-scores)that will ...

A: (a)Given: alpha = 0.20.For two tailed test, critical Z value can be calculated as:

question_answer

Q: Assume that a national fitness study reports that 5% of millenials exercise daily. Suppose that a re...

A: Solution: We are given that a random variable X that represents the number of millenials in the samp...

question_answer

Q: Selecting a card- when a card is drawn from a deck, find the probability of getting d. A king e. A r...

A: Total number of cards in a deck =52.There are 4 kings in the deck.There are 26 red cards in the deck...

question_answer

Q: Please show TI 84 steps

A: Click to see the answer

question_answer

Q: Please show TI 84 steps

A: From the given information, the alternative hypothesis is µ<6. That is, the given test is left ta...

question_answer

Q: Suppose you flip eight fair coins.   What is the probability of flipping exactly eight heads? What...

A: Binomial distribution:The events that has exactly two possible outcomes (success or failure) follows...

question_answer

Q: Typing errors in a text are either nonword errors (as when "the" is typed as "teh") or word errors t...

A: The sample size, n is provided as 10. The probability of error caught is 0.7. Therefore, the probabi...

question_answer

Q: Delta Airlines quotes a flight time of 3 hours, 5 minutes for a particular flight. Suppose we believ...

A: Given dataActual flight time = 3 hours 5 minutes = 185 minutesNote 1 Hour = 60 MinLet X denotes flig...

question_answer

Q: For a population of m=50 and standard deviation of 6, describe the shape, the mean, and the standard...

A: The provided information is:

question_answer

Q: 38. P(1.12 -1.43) For Exercises 41 through 46, find the z value that corre- sponds to the given are...

A: 41.It is known that in a standard normal distribution, P(Z≤0) = P(Z≥0) = 0.5.

question_answer

Q: I wanted help walking through this problem in order to gain a better understanding of Normal Probabi...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

question_answer

Q: A medical salesperson is to visit the various members of the staff at a clinic. He must see 8 doctor...

A: It is given that the sales person must see 8 doctors, 6 physicians assistants, 12 nurses, 3 medical ...

question_answer

Q: the distribution of certain test scores  is a nonstandard normal distribution with a mean of 80 and ...

A: Given:Population mean (μ) = 80Population standard deviation (σ) = 3

question_answer

Q: need answers to questions 9 and 10

A: The tree diagram for the three rolls of the die letting C= {composite number rolled} and N={composit...

question_answer

Q: Assume the random variable X has a binomial distribution with the given probability of obtaining a s...

A: Given datan = 8p= 0.4Required probability is given by

question_answer

Q: Automobile repair costs continue to rise with the average cost now at $367 per repair.† Assume that ...

A: Click to see the answer

question_answer

Q: #1: Let X1 and X2 be independent and identically distributed to random variable X such that X has me...

A: Introduction:Since X1, X2 are independent and identically distributed, the following important point...

question_answer

Q: A manufacturing company recieves a shipment of ball bearings eah month from a supplier. The inspecto...

A: (a)The provided information are:Sample size (n) = 36Population mean (µ) = 0.240Standard deviation (σ...

question_answer

Q: The probability of buying a movie ticket with a popcorn coupon is 0.717. If you buy 21 movie tickets...

A: Given datan= 21p= 0.717probability that exactly 14 of the tickets have popcorn coupon green is given...

question_answer

Q: 7q3r2 Time 9.8 3.3 4.5 2.8 14.4 2.6 6.7 8.9 3.9 4.1 2.5 2.8 0.1 1.3 6.3 10.8 7.5

A: The t-test considered here is a left-tailed test.The sample size is, n = 25.Since one of the degrees...

question_answer

Q: please solve the bullet points question. please show me details for the answers and what are the for...

A: Note:Hey there! Thank you for the question. In the last line of Part (iii), nothing is displayed aft...

question_answer

Q: Jobs and productivity! How do banks rate? One way to answer this question is to examine annual profi...

A: The provided information is:Assume that X is defined as annual profit per employee for representativ...

question_answer

Q: A manufacturer of automatic car transmissions uses steel gears. An important characteristic of these...

A: 1. The number of different treatment combinations is 6 and it is calculated below: From the given in...

question_answer

Q: Today, the waves are crashing onto the beach every 4.9 seconds. The times from when a person arrives...

A: Let X be the random variable uniformly distributed between 0 and 4.9 seconds.Denote X as the time fr...

question_answer

Q: A random sample of 50 public school teachers in Georgia had a mean annual salary of $48,300. Assume ...

A: The hypotheses for the test is given below.Null hypothesis:H0: µ = $50,000Alternative hypothesis:H1:...

question_answer

Q: Over the past 100 days, the price of a certain stock went up on 60 days and went down on 40 days. Ex...

A: Any statistical report should provide with the necessary values along with the conclusion, so that t...

question_answer

Q: A population has a mean of 75 and a standard deviation of 15. You randomly sample nine people from t...

A: From the given information, the population has a mean of 75 and a standard deviation of 15. And the ...

question_answer

Q: My junk drawer at home contains half a dozen screw drivers.  Two of the screw drivers are flat head....

A: Given dataNo of screw drivers = 6No of flat head screw drivers = 2No on non-flat head screw drivers ...

question_answer

Q: ​What is the total number of scores (N) for the distribution shown in the following table?​ X       ...

A: The total number of scores in a frequency table can be referred as the sum of the products of freque...

question_answer

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when n = ...

A: It is given that p is 0.10 and n is 500.

question_answer

Q: please answer 1 & 2 The National Highway Safety Administration recognizes that the antilock...

A: 1)Formulation of hypothesisNull Hypothesis: - There is no difference between the average fatal crash...

question_answer

Q: unrest and violence on one southern campus had descreased by 62% from 10 years ago. four out of ten ...

A: Population:The set of all subjects of interest can be termed as population.Sample:The subset of the ...

question_answer

Q: The lengths of a professor's classes have a continuous uniform distribution between 50.0 min and 52....

A: Solution: We are given that the lengths of a professor's classes have a continuous uniform distribut...

question_answer

Q: Assume that a national fitness study reports that 5% of millenials exercise daily. Suppose that a re...

A: Binomial distribution:The binomial distribution gives the probability of number of successes out of ...

question_answer

Q: How many different three-letter words (including nonsense words) can be formed such that the two let...

A: The permutation can be used to find the number of ways by which a set of objects can be arranged whe...

question_answer

Q: novel pages-  a random sample of 25 novels has a standard deviation of 9 pages. Find the 95% confide...

A: The sample standard deviation is 9.The sample size is 25.

question_answer

Q: A genetic experiment involving peas yielded one sample of offspring consisting of 455 green peas and...

A: State the appropriate hypothesis:Let p be the population proportion of yellow offspring peas.The giv...

question_answer

Q: Ackerman and Goldsmith (2011) found that students who studied text from printed hardcopy had better ...

A: The hypotheses to be tested are:H0: μ = 81.7, that is, the average score of entire class is 81.7;Ver...

question_answer

Q: Please see picture

A: Solution:1.The expected value of X is obtained below:

question_answer

Q: A certain snack vending machine dispenses the incorrect item, on average, 4.2 times every day. Assum...

A: The snack vending machine dispenses the incorrect item on average 4.2 times per day.Thus,

question_answer

Q: A Harriss poll taken surveyed 2016 adults and found that 423 of them had one or more tattoos. can yo...

A: The hypotheses for the test is given below.Null hypothesis:H0: p = 0.25Alternative hypothesis:H1: p ...

question_answer

Q: 6. Suppose a researcher used data on a group of third year students at MIT to estimate the following...

A: According to the provided information, the fitted regression line is

question_answer

Q: Please use ti 84 steps

A: It is given that x is 290 and n is 500.

question_answer

Q: According to scientists, the cockroach has had 300 million years to develop a resistance to destruct...

A: Obtain the critical value at 95% confidence level:It is given that,Sample mean = 10,693/5,000=2.1386...

question_answer

Q: Suppose, according to a 1990 demographic report, the average U. S. household spends $90 per day. Sup...

A: Sample mean = $84.5.Sample standard deviation, s is $14.5.The sample size, n is 30.

question_answer

Q: The waiting times between a subway departure schedule and the arrival of a passenger are uniformly d...

A: A uniform distribution has an equal probability for all the outcomes of the random variable, that is...

question_answer

Q: Assume that females have pulse rates that are normally distributed with a mean of μ=76.0 beats per m...

A: It is given that mean and standard deviation are 76.0 and 12.5, respectively.

question_answer

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when the ...

A: It is given that p is 0.10.

question_answer

Q: A marketing firm wishes to estimate the standard deviation of the ages of college students. How many...

A: It is given that the margin of the error E is 0.05σ, respectively. The level of confidence is 0.95.

question_answer

Q: A card is selected at random in a standard deck of 52 cards. What is the probability of selecting a ...

A: The number of cards in a deck is 52. In these 52 cards number of red cards is 26 and number of black...