Study the group of tests administered to a class where Mary belongs, then answer the following questions.Statistics: Mean=86; SD=11; Mary's raw score=89General Mathematics: Mean=81; SD=7; Mary's raw score=87Precalculus: Mean=86; SD=12; Mary's raw score387Basic Calculus: Mean=89; SD=10, Mary's raw score=78What is Mary's z-score in the following subjects?StatisticsChoose... +General MathematicsChoose... +Pre-CalculusChoose... +Basic CalculusChoose... +

Given: For statistics, μ=86σ=11raw score=89 For general mathematics μ=81σ=7raw score=87 For Pre-…

Answered: What is Mary's z-score in the following…

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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Twenty years ago, 47% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 293 of 900 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.01 level of significance. Because npo (1- Po) =U 10, the sample size is 5% of the population size, and the sample the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.)
Twenty years ago, 51% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 309 of 900 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a= 0.01 level of significance. Because npo (1- po) = 243.5 > 10, the sample size is less than 5% of the population size, and the sample is given to be random, the requirements for testing the hypothesis are satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho: 51 versus H1: 51 (Type integers or decimals. Do not round.) Find the test statistic. Zo = 1.96 (Round to two decimal places as needed.) Find the P-value. P-value = .025 (Round to three decimal places as needed.) Determine the conclusion for this hypothesis test. Choose the…
Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 281 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a= 0.1 level of significance. C... Because npo (1-Po) 4 = 10, the sample size is 5% of the population size, and the sample ▼satisfied. the requirements for testing the hypothesis (Round to one decimal place as needed.). Clear all Help me solve this Get more help . H Type here to search a ? 3 AS E 4 View an example O Bi R V 5 T G 6 B a H N 8 S a hp M 9 O P Check answer 12:55 PM ^ 6/18/2022 94°F Mostly sunny
Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 323 of 900 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.1 level of significance. Because npo (1- Po) (1) 10, the sample size is (2) 5% of the population size, and the sample (3) the requirements for testing the hypothesis (4) satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho: (5) (6) versus H,: (7) (8) (Type integers or decimals. Do not round.) Find the test statistic. Zo = (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Determine the conclusion for this hypothesis test. Choose the correct answer below. O A. Since…
Dr. Springer collected data to see whether people who eat an all-carbohydrate meal have different scores on a mood scale than people who eat an all-protein meal. Higher scores represent better moods. Here are her results: All Carbs All Protein 10 7 8 4 7 9 9 28 13 13 7 7 12 Is there a difference in reported mood between the two groups? Use a two tailed test with an a = 0.05. Step 4: Make a decision Our test statistic has a value of t = I , and in Step 2 we found that the critical value is t* = the null hypothesis Therefore, we (write: reject or fail to reject)
HOW TO INPUT IN EXCEL AND JAMOVI A psychologist would like to research if the Hope scale(Synder, et al., 1991) scores differ between those living in City A and City B. The 12-item scale consisted of two subscales: a 6-item agency subscale and a 6-item pathways subscales. Scores on the 12 items were averaged, with higher scores indicating higher levels of hope. The following scores were obtained. Use Student’s t-test for Independent Groups, alpha at .05 2 tail City A - 43 38 36 38 52 60 58 66 55 63 City B - 62 34 35 52 58 72 57 55 80 67
1a. Which chi-square test should be used on the following study?A psychotherapist wanted to see what percentages that patients sought after four different kinds of therapy consisting of play, dance, music and group therapy. goodness of fit test of independence 1b. A school psychologist wanted to know if the class size changed from small (n=10), medium (n=25) to large (n=100) and attendance of low and high. goodness of fit test of independence
A software company is interested in improving customer satisfaction rate from the 66% currently claimed. The company sponsored a survey of 280 customers and found that 199 customers were satisfied. What is the test statistic z? Ex: 2.22 3
Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 297 of 850 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.1 level of significance. Because npo (1- Po) =L V 10, the sample size is V 5% of the population size, and the sample the requirements for testing the hypothesis V satisfied. (Round to one decimal place as needed.)
What would a t-test look like?
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.You sample 80 men, and 75% own cats.You sample 160 women, and 80% own cats.Find the test statistic, rounded to two decimal places.
What is percentile rank of 20?. Please answer correctly.

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