subject
Mathematics, 18.11.2019 18:31 conradbeckford6813

Proportion problem. each year delta dental does a survey of parents concerning the tradition of the tooth fairy. a random sample of 1,058 parents were asked about how much money they leave for a tooth and questions concerning how their child responded to the concept of the tooth fairy. in one question, 508 parents indicated that their child saved the money they got for their tooth. you are asked to test to see if this proportion is different from .5. use an alpha level of .05.what is the test statistic (z*) for this test? i just want the answer. use 4 decimal places for your answer and use the proper rules of rounding.

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:40, alisucaalisuca
The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?
Answers: 2
image
Mathematics, 21.06.2019 20:00, ZaneKun
Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?
Answers: 1
image
Mathematics, 21.06.2019 20:30, PONBallfordM89
Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.
Answers: 1
image
Mathematics, 22.06.2019 00:30, drewje12
Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots? (x + 2)(x - 3) = 0 (x - 2)-2(x + 3)3 = 0 (x-2 + 2)(x2- 3) = 0 (x + 2)2(x - 3)2 = 0
Answers: 2
You know the right answer?
Proportion problem. each year delta dental does a survey of parents concerning the tradition of the...

Questions in other subjects:

Konu
Mathematics, 26.03.2021 18:20