subject

Mathematics, 12.06.2020 18:57 joynerjaila

Historically, the average time it takes KIm to swim the 200 meter butterfly is 148.4 seconds. Kim would like to know if her average time has changed. She records her time on 50 randomly selected occasions and computes the mean to be 147.8 with a standard deviation of 2.3 seconds. Determine the null and alternative hypothesis, and your conclusion at the level of significance .01. Group of answer choices

ansver

Answers: 3

Show answers

Another question on Mathematics

question

Mathematics, 21.06.2019 18:00

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Answers: 2

question

Mathematics, 21.06.2019 20:00

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Answers: 1

question

Mathematics, 22.06.2019 01:00

If log(a) = 1.2 and log(b)= 5.6, what is log(a/b)? a. 4.4b. 6.8c. not enough informationd. -4.4

Answers: 1

question

Mathematics, 22.06.2019 01:00

The table showed price paid per concert ticket on a popular online auction site. what was the average price paid per ticket

Answers: 1

You know the right answer?

Historically, the average time it takes KIm to swim the 200 meter butterfly is 148.4 seconds. Kim wo...

Questions

question

Computers and Technology, 12.09.2019 21:30

Which of the following is not an objective that drove the development and evolution of database technology? the desire to manage increasing complex d...

question

Computers and Technology, 12.09.2019 21:30

Create a new netbeans project called ps1student. create a new class file named student. the student class should include the appropriate constructors,...

question

Mathematics, 12.09.2019 21:30

If we assume the population of grand rapids is growing at a rate of approximately 4% per decade, we can model the population function with the formula...

question

Chemistry, 12.09.2019 21:30

The diagram above suggests that a. the earth has not changed over geologic time. b. geologic time periods occur in repeating cycles. c. the earth has...

question

Advanced Placement (AP), 12.09.2019 21:30

All of the following are considered stress hormones execpt...

question

Computers and Technology, 12.09.2019 21:30

Program 1: i’m buyin’ a ferrari! if you’ve ever travelled to another country, you know that working with different currencies takes a while to get u...

question

Computers and Technology, 12.09.2019 21:30

The print command is located in the tab....

question

Mathematics, 12.09.2019 21:30

Suppose that 88% of bolts and 83% of nails meet specifications. one bolt and one nail are chosen independently. note: this is a multi-part question....

question

History, 12.09.2019 21:30

Which of the following best describes the great awakening and its impact on colonial america? a it was a reform movement aimed at improv...

question

Biology, 12.09.2019 21:30

Conclude from ratios of progeny in a dihybrid cross whether two genes are linked....

question

Mathematics, 12.09.2019 21:30

A2-column table with 5 rows. the first column is labeled x with entries negative 3, negative 2, 0, 2, 3. the second column is labeled f of x with entr...

question

Biology, 12.09.2019 21:30

Describe the role of chiasmata in chromosome segregation during meiosis....

question

Physics, 12.09.2019 21:30

Rachel and her family live in a region where cacti, shirt grasses, and small bushes flourish. in which boone do they live?...

question

Biology, 12.09.2019 21:30

Choose two microorganisms from the scale cards or the scale tool draw your microorganisms at 2 times their actual size label each microorganisms at it...

question

Mathematics, 12.09.2019 21:30

Jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline conti...

question

Mathematics, 12.09.2019 21:30

Students were surveyed about their favorite colors 1/4 of the students prefered red 1/8 of the students prefered blue and 3/5 of the remaining student...

question

Mathematics, 12.09.2019 21:30

Among the redwoods in california, there’s a rustic inn and restaurant called the hexagon house. from the name of the inn , how many walls can you assu...

question

Mathematics, 12.09.2019 21:30

Jim currently has $1,250 in his bank account and sally has $1,400 in her bank account. jim deposits $27.50 per week and sally deposits $20 per week in...

question

English, 12.09.2019 21:30

That you have a perfect night to do whatever you like with your hair, sand the teenage girl's mother. "but, to be . i don't find green curls

question

Mathematics, 12.09.2019 21:30

Clinton’s garden is 12.25 m long and 14 m wide. find the perimeter of clinton’s garden....

More questions: Mathematics Another questions

Questions on the website: 13722363