Your medical research team is investigating the mean cost of a 30-day supply of a certain heart medication. Apharmaceutical company thinks that the mean cost is less than $95. You want to support this claim. How would youwrite the null and alternative hypotheses?HoiH₂C

Hypothesis Testing: A method of statistical study entitled hypothesis testing involves testing your…

Answered: Your medical research team is…

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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In hypothesis testing if we have the alternate hypothesis that the mean is less than 5, it leads to a what test?
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You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 200 men, and 65% own cats.You sample 80 women, and 40% own cats.Find the test statistic, rounded to two decimal places. You are testing the claim that the mean GPA of night students is different than the mean GPA of day students.You sample 20 night students, and the sample mean GPA is 2.41 with a standard deviation of 0.46You sample 50 day students, and the sample mean GPA is 2.27 with a standard deviation of 0.36Calculate the test statistic, rounded to 2 decimal places
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A child dying from an accidental poisoning is a terrible incident. Is it more likely that a male child will get into poison than a female child? To find this out, data was collected that showed that out of 1893 children between the ages one and four who pass away from poisoning, 995 were males and 898 were females. Do the data show that there are more male children dying of poisoning than female children? Test at the 1% level. State the hypotheses. Ho: P₁ = V OB P2 Ha: P₁ > V P2 Calculate the test statistics. Round to four decimal places. P₁ = P₂ = Calculate the standardized test statistic. Round three decimal places. Z = Find the p-value. Round to four decimal places. p-value = State your decision. X Since the p-value is less than .01, fail to reject Ho. Since the p-value is less than .01, reject Ho. O Since the p-value is greater than .01, reject Ho. O Since the p-value is greater than .01, fail to reject Ho. Interpret the results. O At the 1% level of significance, there is not…
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Conduct a 6 Step Test of Hypotheses
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n a study assessing helping behavior among college students on their way to class, you recruit 10 students. You tell some participants that they are late for class and need to rush. You tell others they are right on time. Finally, you tell others they have lots of time before class. As they walk across campus, they come across a man (actually a confederate) who appears to need help. You measure the extent to which the participant noticed that the confederate needed help (1 = did not notice to 9 = really noticed). State the alternative hypothesis H1: µ1 = µ2 = µ3 H1: X1 ≠ X2 ≠ X3
6. Twenty years ago, 46% 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 236 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) (1) 10, the sample size is (2) 5% of the population size, and the sample (3) satisfied. the requirements for testing the hypothesis (4) (Round to one decimal place as needed.) What are the null and alternative hypotheses? Họ: (5) versus H1: (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. A. Since P-value…
review(31a) MAKE SURE YOU SELECT TWO ANSWERS FOR THIS QUESTION.. Type of test and hypotheses. Professor dill wonders if male and female earn significantlly differnent grades, when taking the same course with the same instructor. He randomly samples 160 males. and 100 females. The males receive 20 A's, 32 B's 70 C's 30 D's, anf 8 F's.The female receive 20'A's, 28 B's, 30 C's, and 10 D's. and 12 F's; His hypotheses is that gender and grades are related. Choose the type of test you should choose to test the hypotheses in symbol notation( or in words if symbol is not appropriate) (a) Z test (b)single sample t test (c)dependent t test (d) independent t test (e) Pearson correlation coeffieient. (f) ANOVA (g) chi Square goodness of fit test (h)Chi Square test of independence (i) Ho: u1-u2=0 H1: u1-u2!=0 (j) Ho: u1-u2 =0 H1:u1-u2<0 (k) Ho: u1-u2 >= 0 H1: u1=u2<0 (l) Ho : Rho=0 H1: Rho!=0 (m) Ho: Rho >= 0 H1: Rho <0 (n) Ho:Rho <= 0 H1: Rho >…

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Your medical research team is investigating the mean cost of a 30-day supply of a certain heart medication. A pharmaceutical company thinks that the mean cost is less than $95. You want to support this claim. How would you write the null and alternative hypotheses? 22 4