subject
Mathematics, 06.05.2020 04:21 mmunozgo9334

Researchers investigating characteristics of gifted children collected data from schools in a large city on a random sample of thirty-six children who were identified as gifted children soon after they reached the age of four. The following histogram shows the distribution of the ages (in months) at which these children first counted to 10 successfully. Also provided are some sample statistics. a) Are conditions for inference satisfied?b) Suppose you read on a parenting website that children first counts to 10 successfully when they are 32 months old, on average. Perform a hypothesis test to evaluate if these data provide convincing evidence that the average age at which gifted children first count to 10 successfully is different than the general average of 32 months. Use a significance level of 0.10.c) Interpret the p-value in context of the hypothesis test and the data. d) Calculate a 90% confidence interval for the average age at which gifted children first count to 10 successfully. e) Do your results from the hypothesis test and the confidence interval agree? Explain.

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 22.06.2019 00:30, bellam302
Ms. green tells you that a right triangle has a hypotenuse if 13 and a leg of 5. she ask you to find the other leg of the triangle. what is you're answer?
Answers: 2
image
Mathematics, 22.06.2019 04:00, alex12everett
Find an equation of the line that has intercepts (1,0) and (0,4).
Answers: 2
image
Mathematics, 22.06.2019 04:30, mi364
You have z baseball cards. christopher has 12 fewer baseball cards than you do. which expression correctly shows how many baseball cards christopher has?
Answers: 2
image
Mathematics, 22.06.2019 09:30, neyssa83
(pls ) for which data set would the mean absolute deviation (mad) be a good indicator of variation of the data?
Answers: 2
You know the right answer?
Researchers investigating characteristics of gifted children collected data from schools in a large...

Questions in other subjects:

Konu
Mathematics, 09.01.2020 21:31