Find the z-score that cuts off 15% in the tail on the right.  (Hint: if you can’t find that EXACT percentage on the table, then there should be two VERY CLOSE numbers, one just under the percentage you’re looking for, and one just over it.  Either one of those two is fine—so just pick the one that appears in the answer options below).

Q: Find the percentage of data points that lie between -2.31 and 1.85.

A: Assuming the data follows standard normal distribution with mean 0 and standard Deviation 1Finding…

Q: if a test is weighted at 25% and I make a 55 on the test with my current grade being a 82, would is…

A:

Q: The normal price of certain 50-inch LED television set at Buy Big is $799. After Thanksgiving, Buy…

A: Please refer to the image below.

Q: Match these values of r with the accompanying scatterplots: - 1, -0.994, -0.423, 1, and 0.772. W…

A: Solution If the increase in one variable will result increase the in other variable then they are…

Q: A certain test is worth125 points. How many points (rounded to the nearest point) are needed to…

A: A certain test is worth125 points.

Q: Sally just received her SAT results. Her SAT mathematics score was 600 and is in the 74th…

A: The score is 600 and it is the 74th percentile.

Q: The chart below shows the grade distribution on a quiz in one of my classes. If there are 34…

A: Solution: The objective is to find the number of students who scored A grade

Q: If the MARR is 8%, which alternative should be selected? Year X Y 0 - $5000-$5000 1 - 3000 2 4000 3…

A: Ans-Since MARR Is 8% the alternative should be selected is as follows. Present worth of X = -5000 -…

Q: Alex is 80th in his class of 320 students. What is his percentile rank in class?

A: Data given p=80, n=320

Q: lease do not give solution in image format thanku) The FBI wants to determine the effectiveness of…

A: Answer  Given  sample size [n] =1753   Favorable cases [x] =683

Q: What percent of scores are below a T score of 56?

A: Given, T score is 56. Now,

Q: I have 87.76% grade in one of my classes. If my final exam is worth 20% and I get like an 80% grade…

A: Current percentage:  87.76% Weightage of final exam:  20%

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: Answer X               Y 6.00           96.50           266.75           557.50           628.00…

Q: Actually use drugs 11 Do not use drugs Total Test "positive" Test "negative" 2 13 4 370 374 Total 15…

A:

Q: As first public inquiry showed, there were 643,000 women motorcyclists in the United States, up from…

A: We all know when we have to calculate percentage-change First: Find out the difference (increase)…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A:

Q: if you dont show up for the first exam and take a 0%, then average 82% for everything else the rest…

A:

Q: It is known that, in a small town, 0.22 percent people are allergic to pollen and 0.2 percent people…

A:

Q: Maryam scored an 8 out of 10 on her spelling test one week. The next week, her score decreased by…

A: The objective of this question is to find out Maryam's score for the second week after it decreased…

Q: In October, the circulation of the local newspaper was 247,624. The circulation of the newspaper in…

A: In October, the circulation of the local newspaper was 247,624 In September, the circulation of the…

Q: Complete the following statements. In general, % of the values in a data set lie at or below the…

A:

Q: There are two different elementary schools in the district. After 15% of the children at the first…

A:

Q: In June, Mitchell started a new job and worked a total of 130 hours that month. A. In July, he…

A: we need to find out the absolute change and relative change.

Q: Shareholders in an electronics company were informed that the company's market share increased from…

A: Given ,  Shareholders in an electronics company were informed that the company's market share…

Q: Brandon's score in the high jump at a track and field event showed that he was only able to jump…

A: B's score in the high jump at a track and field event showed that he was only able to jump higher…

Q: Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored…

A: Mean= sum of total obervation/ total no. Of observation

Q: A typical high-income household in 1980 earned $125,527. A similar household in 2009 earned…

A: Relative increase is given by R=(New value-Old value)/Old value