7. Bob earned 116 on his accounting midterm and 82 on his biology exam.For the accounting exam the mean score was 102 with standard deviation 14.For the biology exam the mean was 70 with standard deviation 5.a) Convert each exam score to a standard score z.b) On which test did he do better compared to the rest of the class?

It is given that For accounting, score = 116, mean = 102, SD = 14 For biology, score = 82, mean =…

Answered: ) Convert each exam score to a standard…

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 pairs of observations in the following material tell how many convenience stores in a city have been robbed during the year and how far that convenience store is from the nearest police station. Material: Distance (km) Robberies (pcs)5.8 40.2 212.3 93.7 41.4 39.5 915.0 117.7 6 Question: We want to know if the number of robberies is related to the distance of the convenience store from the nearest police station.(a) What hypothesis should be tested? Clearly formulate both the null and counter hypothesis and verbally explain their interpretation.(b) Test the hypothesis you just formed at the 5% significance level.(c) Repeat (b) at the 1% significance level. In the assignments, you must not use the ready-made function of the R software or other software for linear regression, i.e. the assignments must be solved using…
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A researcher thinks that watching violent televisions increases aggressive behavior in children. To test this hypothesis, she randomly assigns 48 children into one of 3 groups (no violent TV, a little violent TV, or a lot of violent TV) and observes their playground behavior for three weeks and measures it for violence and intensity. For the variable “amount of TV” (as it appears in this problem), what is the scale of measurement? a. nominal b. ordinal c. interval d. ratio A researcher thinks that watching violent televisions increases aggressive behavior in children. To test this hypothesis, she randomly assigns 48 children into one of 3 groups (no violent TV, a little violent TV, or a lot of violent TV) and observes their playground behavior for three weeks and measures it for violence and intensity. If the researcher’s hypothesis is correct, which of the following conclusions could be drawn? a. Fail to reject the null, watching violent TV does not increase…
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) Convert each exam score to a standard score z. ) On which test did he do better compared to the rest of the class?