subject

Mathematics, 27.09.2019 23:30 Joseph17Peralta

Atextbook company states that the average time a student needs to take a quiz from its book is 30 minutes with a standard deviation of 3 minutes. a teacher using the book is not sure that this is correct for her classes and wants to check. she collects data on 10 random students and finds that the average time to take the quiz was only 25 minutes. as a result, the teacher performs a two-tailed hypothesis test with a significance level of 5%. which conclusion is valid based on the results of the test?

ansver

Answers: 1

Show answers

Another question on Mathematics

question

Mathematics, 22.06.2019 00:30

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i

Answers: 1

question

Mathematics, 22.06.2019 01:10

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?

Answers: 2

question

Mathematics, 22.06.2019 02:30

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.

Answers: 3

question

Mathematics, 22.06.2019 02:30

Graph the function =gx+2x3 and give its domain and range using interval notation.

Answers: 3

You know the right answer?

Atextbook company states that the average time a student needs to take a quiz from its book is 30 mi...

Questions

question

Biology, 30.11.2019 05:31

As animals have evolved large body size, they have also evolved adaptations to improve the exchange of energy and materials with the environment. for...

question

Business, 30.11.2019 05:31

Diamond design company makes custom chairs for individual customers. on september 1, there was one job in process, job 243, with a cost of $2,000. job...

question

English, 30.11.2019 05:31

When considering past generations, we find that it was common for people to form interpersonal relationships with people who lived in the same geograp...

question

Engineering, 30.11.2019 05:31

Boardman college maintains two files—one for sociology majors and another for anthropology majors. each file contains students' id numbers, last names...

question

Social Studies, 30.11.2019 05:31

At pixel inc, all promotions, pay raises, and bonuses are based on employees' attainment of their goals and the extent to which they the organization...

question

Business, 30.11.2019 05:31

As the owner of a small business, sally would like to move the sale of her candles from storefronts to the internet. why is it possible for her to so...

question

Physics, 30.11.2019 05:31

A5.0 g coin is placed 15 cm from the center of a turntable. the coin has static and kinetic coefficients of friction with the turntable surface of μs...

question

Business, 30.11.2019 05:31

(hedging commodity price risk) minelli enterprises uses large amounts of copper in the manufacture of ceiling fans. the firm has been very concerned a...

question

Computers and Technology, 30.11.2019 05:31

If costs are recorded as 8-bit numbers in a 50-router network, and distance vectors are exchanged twice a second, how much bandwidth per (full-duplex)...

question

Mathematics, 30.11.2019 05:31

Of the last 500 customers entering a supermarket, 50 have purchased a wireless phone. if the relative frequency approach for assigning probabilities i...

question

Physics, 30.11.2019 05:31

Two loudspeakers emit sound waves along the x-axis. a listener in front of both speakers hears a maximum sound intensity when speaker 2 is at the orig...

question

Business, 30.11.2019 05:31

The hallmarks of a high-performance corporate culture include a. a deep commitment to pioneering new best practices, a preference for being a fa...

question

Business, 30.11.2019 05:31

On january 1, 2014, huber co. sold 12% bonds with a face value of $1,000,000. the bonds mature in five years, and interest is paid semiannually on jun...

question

Computers and Technology, 30.11.2019 05:31

Astudent is recording a song on her computer. when the recording is finished, she saves a copy on her computer. the student notices that the saved cop...

question

Computers and Technology, 30.11.2019 05:31

Write the definition of a function printlarger, which has two int parameters and returns nothing. the function prints the larger value of the two para...

question

Computers and Technology, 30.11.2019 05:31

Fred has just added dsl service at his home, with a separate dsl modem and consumer-grade router with four ethernet ports. fred wants to use the same...

question

Social Studies, 30.11.2019 05:31

In postcolonial societies in which ethnic or religious divisions are strong, we often see some form of in which one group seeks to dominate the state...

question

Biology, 30.11.2019 05:31

While you are at the store you see a young child climb onto a motorcycle arcade game and the child eagerly begins to press the acceleration and attemp...

question

Business, 30.11.2019 05:31

The process where vendors ship the merchandise prepackaged to the distribution center in the quantities required for each store and then that merchand...

question

Business, 30.11.2019 05:31

Team operating principles are sometimes included in a project charter to enhance team functioning. which of the following statements accurately descri...

More questions: Mathematics Another questions

Questions on the website: 13722359