Question 5Given the following sampling distribution:|-19-12 -51213P(X) 100 V100 100What is P(X>-12)?a) O 0.91b) O0.89c) O 0.92d) O0.86e) O 0.90f) O None of the above

we know that total probability is equal to…

Answered: Given the following sampling…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The researchers collected the data shown here on a self-esteem questionnaire. At a=0.05, can it be concluded that there is a difference in the self-esteem scores of the two groups? Leavers Stayers X₁ = 3.05 X₂ = 2.96 02 0.75 σ₁ = 0.75 = 103 n₁ 225 p
1. Given a population of 1,1,3,3,3,5,8,9,9,10, with N = 10. A random sample of n = 1 score from the population, what is the probability of obtaining an individual with a score greater than 3? p(X> 3)? O 1.5/10 O 2.3/10 O 3. 10/ 10 O 4.2/10
• A) Given the data Pulse Rate (beats per minute) Mean St. Dev. Distribution Males 69.6 11.3 Normal Females 74.0 12.5 Normal a. Find the probability that a female has a pulse rate less than 60 beats per minute. b. Find the probability that a male has a pulse rate grater than 80 beats per minute. c. Find the probability that a m ale has a pulse rate between 65 beats per minute and 85 beats per minute. • B) Snow White. Disney World required that women employed as a Snow White character must have a height between 64 in and 67 in o Find the percentage of women meeting the height requirement o If the height requirements are changed to exclude the shortest 40% of women and the tallest 5% of women, what are the new height requirements?
A researcher is interested in investigating whether living situation and pet ownership are dependent. The table below shows the results of a survey. Frequencies of Living Situation and Pet Family Single Couple Dog 98 81 81 Cat 104 76 73 Various 50 51 59 None 67 42 35 What can be concluded at the a = 0.05 significance level? %3D a. What is the correct statistical test to use? O Paired t-test O Independence O Goodness-of-Fit O Homogeneity b. What are the null and alternative hypotheses? Но: O Pet ownership and living situation are independent. O Pet ownership and living situation are dependent. O The distribution of pets is the same for each living situation. O The distribution of pets is not the same for each living situation. H1: O The distribution of pets is the same for each living situation. O Pet ownership and living situation are independent. O Pet ownership and living situation are dependent. O The distribution of pets is not the same for each living situation. (Please show your…
10. A random sample of n 16 individuals is selectedfrom a population with μ 70, and a treatment isadministered to each individual in the sample. Aftertreatment, the sample mean is found to be M 76with SS 960.a. How much difference is there between the mean forthe treated sample and the mean for the originalpopulation? (Note: In a hypothesis test, this valueforms the numerator of the t statistic.)b. How much difference is expected just by chancebetween the sample mean and its population mean?That is, find the standard error for M. (Note: In ahypothesis test, this value is the denominator of thet statistic.)c. Based on the sample data, does the treatment havea significant effect? Use a two-tailed test with.05.
10 12 14 16 18 Which of the following statements are true about the boxplot shown here? I. The distribution is skewed right. II. The interquartile range is about 8. III. The median is about 10. I only O |l only O III only OI and II O Il and II
question 8
Deascribe the sampling distribution of the sample proportion? A )the sampling distribution of the sample proportion for a simple random sample of size n = 167. the proportion with a specified characteristic is p=0.01. Assume that the size of the population is 1,267 B) the sampling distribution of the sample for a simple random sample n=56. the proportion with a specified characteristic is P= 0.55. assue that the size of the population is 10,4551
What is the distribution of p when the sample is "large enough"? O A. P(1-P) -N P. O B. P(1-p) P. n-1 Oc. p(1-p) -N P, n-1 O D. ~Np, p(1-p) O E. p(1-p)
In each of the following cases, indicate whether the central limit theorem will Apple to describe the sampling distribution of the sample proportion, I.e. whether the sampling distribution of the sample proportion is approx normal or not. your answer should be yes or no. a) n= 31, p=.97 b) n=49, p =.13 c) n=38, p=.24 d) n=54, p= .51

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Given the following sampling distribution: -19-12 -5 12 13 /100 P(X)25 What is P(X>-12)? a) O 0.91 b) 0 0.89 c) O 0.92 d) O0.86 e) O 0.90 f) O None of the above