Question

The distribution of scores on the SAT is approximately normal with a mean of μ = 500 and a standard deviation of σ = 100. For the population of students who have taken the SAT:

What proportion have SAT scores greater than 450?

Please help! 

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Other

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Overbooking a Boeing 767-300 A Boeing 767-300 aircraft has 213 seats. When someone buys a ticket for...

A: Click to see the answer

Q: When testing for current in a cable with six color-coded wires, the author used a meter to test four...

A: Using the combination formula the required number of tests can be obtained as:

Q: Toxic Mushrooms? Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb...

A: (a) The Czech and Slovak governments have set a safety limit in dry vegetables for cadmium at 0.5 pa...

Q: more opportunities to earn and invest than younger individuals. The following data were obtained fro...

A: Click to see the answer

Q: We have given a likely range for the observed value of a sample proportion p. a. Based on the given ...

A: It is given that the confidence interval is 0.2 to 0.4. a) The educated guess is that closest value ...

Q: A two-sample t-test for a difference in means was conducted to investigate whether the average wait ...

A: It is given that the p-value is 0.011 and the level of significance is 0.02.

Q: What is the level of significance? State the Null and alternative hypotheses. Will you use a left fi...

A: Determine the level of significance. Significance level:  In order to decide how small the p-value s...

Q: Duckhunting and populated areas faces opposition on the basis of safety and environmental issues. In...

A: It is given that the sample size is 750 local residents, among that 560 who strongly opposed to hunt...

Q: The researcher considers using regression analysis to establish a linear relationship between the tw...

A: a) The dependent variable is the yearly income (y) as it is depending on the independent variable, t...

Q: Find the confidence level and α for a. a 90% confidence interval. b. a 99% confidence interval.

A: Confidence Level:   The confidence level represents the probability of the parameter of population f...

Q: Statistics Question

A: Note: Hey there! Thank you for the question. As you have posted more than one questions, according t...

Q: A shipment of 1000 small lab mice arrives at the animal care facility with a nominal weight of 12 g ...

A: Click to see the answer

Q: In Exercises, we repeat data from exercises in Section 14.2. For each exercise, determine the linear...

A: Click to see the answer

Q: A line can combine unites of inputs Cx) to produce processing units of output cy such trat there is ...

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...

Q: For a Friedman test, how do we a. measure variation among sample mean ranks for the treatments? b. d...

A: a. SSTR: The variation among the sample means for the treatments, computed for the ranks.

Q: Assume that when adults with smartphones are randomly​ selected, 43% use them in meetings or classes...

A: Click to see the answer

Q: Lovely Lawns, Inc., intends to use sales of lawn fertilizer to predict lawn mower sales. The store m...

A: Introduction: We have renamed the predictor variable, Fertilizer Sales as x, and the response variab...

Q: Given the estimated least square regression line y=2.48+1.63x, and the coefficient of determination ...

A: Click to see the answer

Q: In a recent year, the rate of U.S. home ownership was 65.9%. Choose a random sample of 120 household...

A: From the given information, it can be observed that the sample size is 120 and probability of U.S. o...

Q: Sociologists argued that women on average earn less than men as women often choose to work less hour...

A: Number of hours worked and income earned by Australian men and women are the two variables the resea...

Q: America’s Melting Pot. The U.S. Census Bureau publishes data on the population of the United States ...

A: a. The bar chart with race and ethnicity in America(represented in millions). Bar chart: A bar chart...

Q: Working with Large Data SetsIn Exercises, use the technology of your choice to do the following task...

A: Click to see the answer

Q: Annual Incomes Annual incomes are known to have a distribution that is skewed to the right instead o...

A: The annual incomes distributed skewed to the right and the large random sample collected from the an...

Q: To pain relief drugs are being considered. Random sample of eight doses of the first drug sure that ...

A: Click to see the answer

Q: Testing Claims About Proportions. In Exercises 7–22, test the given claim. Identify the null hypothe...

A: Click to see the answer

Q: A polling agency wants to determine the percentage of voters in favor of extending tax cuts. They wi...

A:  

Q: Identify a commonly used graphical technique for portraying events and relationships among events.

A: Venn diagram: Venn diagram is a diagrammatic representation of sets that show the relationship betwe...

Q: Too much cholesterol in the blood increases the risk of heart disease. The cholesterol levels of you...

A: From the provided information, Mean (µ) = 185 milligrams per decilitre Standard deviation (σ) = 39 m...

Q: Working with Large Data SetsIn Exercises, use the technology of your choice to do the following task...

A: Click to see the answer

Q: Apply Chebyshev’s rule to solve. A quantitative data set of size 80 has mean 30 and standard deviati...

A: Click to see the answer

Q: Stewed Tomatoes. A company produces cans of stewed tomatoes with an advertised weight of 14 oz. The ...

A: Given that,  The average advertised weight is 14 oz and the standard deviation is 0.4 oz. A quality-...

Q: Computer games in which the players take the roles of characters are very popular. They go back to e...

A: (a). Find the sample space of the character’s strength of a character: Given that a four-sided die h...

Q: 1. The distribution of scores on the SAT is approximately normal with a mean of μ = 500 and a standa...

A: Form the given information, Mean =500 Standard deviation = 100

Q: State the null and alternative hypotheses for a hypothesis test For a. treatment Factor T effect. b....

A: a. Hypotheses for treatment factor T effect: Null hypothesis: H0: µ1 = µ2 = µ3 = … = µt. That means ...

Q: The higher education department of Holmes Institute recorded data on the number of students enrolled...

A: The appropriate chart is Clustered Bar Chart to compare the number of enrollments in 2018 with that ...

Q: You take a sample (N = 9) of heights of fifth graders. The sample mean was 49, and the sample standa...

A: Click to see the answer

Q: Testing for a Linear Correlation. In Exercises 13–28, construct a scatterplot, and find the value of...

A: Click to see the answer

Q: Working with Large Data SetsIn Exercises, use the technology of your choice to do the following task...

A: Click to see the answer

Q: A positive linear relationship between two variables means that one variable tends to increase linea...

A: Positive linearly correlation: If one variable increases, then the other variable also increases mea...

Q: From a group of 12 students, we want to select a random sample of 4 students to serve on a universit...

A: From the provided information, Total students in a group = 12 The different ways of selecting r rand...

Q: If np greater than or equals 5 and nq greater than or equals 5 ​, estimate P(fewer than 5) with n= 1...

A: Click to see the answer

Q: 3) Below are the ages of ten women who have been recognized for their social work: 43,44,45,48,53,56...

A: Click to see the answer

Q: What is the range of the numbers -3,2,-5,3,11?

A: Click to see the answer

Q: True or false: If you know any two of the three sums of squares, SST, SSTR, and SSE, you can determi...

A: Click to see the answer

Q: Please solve iv,v and vi only thanks

A: Click to see the answer

Q: The mean is µ = 15.2 and the standard deviation is o = 0.9. Find the probability that X is greater t...

A: Click to see the answer

Q: answers to part 2

A: Click to see the answer

Q: Poll Results in the Media USA Today provided results from a poll of 1000 adults who were asked to id...

A: The data shows that the poll was conducted on 1,000 adults and 14% of adults chose pie as their favo...

Q: A real estate agent wants to predict the selling price of single-family homes from the size of each ...

A: The given least square regression line is as follows: Here, price in thousands of dollars and size ...

Q: We expect a car’s highway gas mileage to be related to its city gas mileage (in mpg). Data for all 1...

A: In a regression equation y = a + bx, the slope is b and the intercept is a where x is the independen...