The scores of individual students on the American College Testing (ACT) composite college entrance examination have a

Fantastic news! We've Found the answer you've been seeking!

Question:

The scores of individual students on the American College Testing (ACT) composite college entrance examination have a normal distribution with a mean of 17.3 and a standard deviation of 7.5. Please explain the steps.

(a) What is the probability that a single student is randomly chosen from all those taking the test with scores of 25 or higher? 0.1515

(b) Now take an SRS of 68 students who took the test. What is the mean and standard deviation of the average (sample mean) score for the 68 students? (Round the standard deviation to 3 decimal places). x = 17.3 x = ?

Only Typing answer

Not a picture

Posted Date: May 17, 2024 09:07 PM

See More Questions

The following financial statements for Brownstone plc are a slightly simplified set of published accounts. Brownstone plc is an engineering business that developed a new range of products in 2007....
Gainesville Cigar stocks Cuban cigars that have variable lead times because of the difficulty in importing the product: Lead time is normally distributed with an average of 6 weeks and a standard...
Given the fact that some workers have religious or other objections to unions, is the Rand formula ethical?
In each of four independent cases, the amount of differential revenue or differential cost is as follows (parentheses indicate decreases): For each case, determine the missing amount that would be...
Oerstman, Inc., uses a standard costing system and develops its overhead rates from the current annual budget. The budget is based on an expected annual output of 120,000 units requiring 480,000...
i. Identify 3 data collection instruments and procedures for administering them. ii. Explain how these instruments and the data collected will help answer the research
Cancer incidence is the number of new cancers of a specific site/type occurring in a specified population during a year, usually expressed as the number of cancers per 100,000 population at...
Do the assumptions for Bernoulli trials appear to hold? Explain. If the assumptions hold, identify success and the probability of interest. (a) A TV ratings company will use their electronic...
Voltage fluctuation is given as the reason for \(80 \%\) of all defaults in nonstabilized equipment in a plant. Use the formula for the binomial distribution to find the probability that voltage...
If the probability is 0.40 that steam will condense in a thin-walled aluminum tube at 10 atm pressure, use the formula for the binomial distribution to find the probability that, under the stated...
A quality-control engineer wants to check whether (in accordance with specifications) \(95 \%\) of the electronic components shipped by his company are in good working condition. To this end, he...
Which conditions for the binomial distribution, if any, fail to hold in the following situations? (a) The number of persons having a cold at a family reunion attended by 30 persons. (b) Among 8...
What is output of the following program? #include using namespace std; int x = 19; int main () { int x = 21; { int x = 41; cout <
The following processes constitute the air-standard Diesel cycle: 12: isentropic compression,23: constant-volume energy addition (T and P increase),34: constant-pressure energy addition (v...

The scores of individual students on the American College Testing (ACT) composite college entrance examination have a

Question:

Expert Answer:

Students also viewed these mathematics questions