2. A new insecticidelaboratory test, theimmediately after contact.Is this sufficient evidence to support the advertised claim? Use α=0.05.(c) p-value for the problem above is0.84640.17930.15360.8207is advertised to kill more than 95% roaches upon contact. In ainsecticide was applied to 400 roaches and 384 died

Answered: 2. A new insecticide laboratory test,…

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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7. When a 0.01, the critical values are %3D A. ±1.65 B. +1.96 C. +2.33 D. +2.58 Scanned with CamScanner
5. You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly more than 17%. With H1: p > 17% you obtain a test statistic of z=2.919. Find the p-value accurate to 4 decimal places.
Only 11% of registered voters voted in the last election. Will voter participation change for the upcoming election? Of the 379 randomly selected registered voters surveyed, 34 of them will vote in the upcoming election. What can be concluded at the a = 0.05 level of significance?
The Louisville Parks Department found that 48% of visitors to parks brought food to the park back in 2005. Use these results below from #1 to see if that proportion has changed. Be sure to include appropriate hypotheses, the p-value, and your conclusions. E= 1.96 x √0.43x0.57/100 E = 0.097 95% CI is P ±E 0.43 ±0.097 = (0.333, 0.527)
7. 19 (1BX-2) E mPQ mSR= MORT PSR mPS R
You are a researcher who wants to know what the mean (µ) level of anxiety would be for the whole population if they were all receiving a new anti-anxiety therapy. You can’t give the therapy to the whole population, so you give it to a sample, and you get M = 32.1 as the average anxiety level for the sample on the therapy. What is the reason that you can’t just simply assume that µ = 32.1? You didn’t use random assignment Sampling error Descriptive statistics Inferential statistics
State the null and alternative hypotheses: H0: μ | ≠, <, =, or > _________ H1: μ | ≠, ≥ , =, ≤ , or = _________
The following table shows the weights (in pounds) and the number of hours slept in a day by a random sample of infants. Test the claim that M≠0. Use α=0.1. Then interpret the results in the context of the problem. If convenient, use technology to solve the problem. Weight, x Hours slept, y8.2 14.810.2 14.59.9 14.17.2 14.26.9 13.811.3 13.111.1 13.914.9 12.5 Calculate the test statistic. t=
Q10. Suppose the alternative hypothesis for a particular test is given by H1: p ≠ 0.50. What is theP-value for this test if test statistic z = 1.35.a. 0.2010b. 0.0885c. 0.9115d. 0.1770
A new insecticide is advertised to kill more than 95% roaches upon contact. In a laboratory test, the insecticide was applied to 400 roaches and 384 died immediately after contact. Is this sufficient evidence to support the advertised claim? Use α=0.05. (c) p-value for the problem above i
12. Reading this statement: "For k/N-k, i.e., 5/50-5 df, the critical value at a.05 is 4.04." How many treatment conditions were compared in the study? а. 5 b. 50 С. 45 d. 4.04
A teacher gives a third grade class of n = 16 a vocabulary test at the beginning of the school year. To evaluate the changes that occur during the year, students are tested again at the end of the year. Their test scores revealed an average improvement of MD = 5.7 points with sD2 = 144. a. Is there a significant difference in students’ test scores over the school year? Use an alpha level of .05. b. please compute Cohen’s d and evaluate it.

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