Mathematics, 02.12.2019 21:31 joellundy

Consider the following two scenarios involving hypothesis testing the population mean, and complete the sentences that follow.
i. the mean iq score of adults is known to be 100. in order to test whether the mean iq of lawyers is higher than 100, a random sample of 10 lawyers was chosen and their iq measured and recorded. it was found that for the 10 sampled lawyers the average iq score was 101.4 with a standard deviation of 14.5. it is known that iq scores follow a normal distribution. ii. the mean iq score of adults is known to be 100. in order to test whether the mean iq of lawyers is higher than 100, a random sample of 10 lawyers was chosen and their iq measured and recorded. it was found that for the 10 sampled lawyers the average iq score was 101.4. it is known that iq scores follow a normal distribution with standard deviation of 15.in scenario i, the -select- population standard deviation is known standard deviation is calculated from the sample -select-, and therefore the -select- t-test z-test -select- should be used. in scenario ii, the -select- population standard deviation is known standard deviation is calculated from the sample -select-, and therefore the -select- t-test z-test -select- should be used.

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 20:30

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Answers: 3

Answer

Mathematics, 21.06.2019 22:10

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?

Answers: 1

Answer

Mathematics, 21.06.2019 23:00

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Answers: 2

Answer

Mathematics, 22.06.2019 01:30

Have you ever been in the middle of telling a story and had to use hand gestures or even a drawing to make your point? in algebra, if we want to illustrate or visualize a key feature of a function, sometimes we have to write the function in a different form—such as a table, graph, or equation—to determine the specific key feature we’re looking for. think about interactions with others and situations you’ve come across in your own life. how have you had to adjust or change the way you represented something based on either the concept you were trying to describe or the person you were interacting with? explain how the complexity or layout of the concept required you to change your style or presentation, or how the person’s unique learning style affected the way you presented the information.

Answers: 1

Answer

You know the right answer?

Consider the following two scenarios involving hypothesis testing the population mean, and complete...

Questions