It is commonly believed that the mean body temperature of a healthy adult is 98.6°F. You are not entirelyconvinced. You believe that it is not 98.6° F.If you are going to test this claim at the 0.01 significance level, what would be your null and alternativehypotheses?Ho:H1:What type of hypothesis test should you conduct (left-, right-, or two-tailed)?left-tailedright-tailedtwo-tailed

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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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Based on certain data, a null hypothesis is rejected atthe 0.05 level of significance. Would it also be rejectedat the(a) 0.01 level of significance;(b) 0.10 level of significance?
It is commonly believed that the mean body temperature of a healthy adult is 98.6F. You are not entirely convinced. You believe that it is not 98.6F.If you are going to test this claim at the 0.01 significance level, what would be your null and alternative hypotheses?H0: H1: What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed
Past studies have indicated that the percentage of smokers is estimated to be about 35%. Given the new smoking cessation programs that have been implemented, you now believe that the percentage of smokers has reduced.a) If you going to test this claim at the 0.05 significance level, what would be your null and alternative hypotheses?H0: _______ H1: _______ b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? left-tailed right-tailed two-tailed
A random sample of 663 teens who said they did not typically eat fast food reported an average daily calorie intake of 2258, with standard deviation 1519. A random sample of 413 teens who said they did typically eat fast food reported an average daily calorie intake of 2637, with standard deviation 1138. The two populations are not terribly skewed. Based on the above description, which of the following conditions are met for conducting a hypothesis test for the equality of two means? Choose one or more that apply. Select one or more: a. Both samples are random b. Samples are independent of one another c. Both samples are normal enough given the sample size d. Two population means need to be the same
Given a sample of 50 observations with a Pearson's r correlation coefficient of 0.8, what is the p-value for a two-tailed hypothesis test with a significance level of 0.05?
In testing hypotheses, which of the following would be strong evidence against the null hypothesis?a. Obtaining data with a test statistic of small magnitude.b. Obtaining data with a small P-value.c. Obtaining data with a large P-value.d. Using a large level of significance, α.e. Using a small level of significance, α
A fast-food restaurant claims that a small order of french fries contains 120 calories. A nutritionist is concerned that the true average calorie count is higher than that. The nutritionist randomly selects 35 small orders of french fries and determines their calories. The resulting sample mean is 155.6 calories, and the pp-value for the hypothesis test is 0.00093. Which of the following is a correct interpretation of the p-value? A)If the population mean is 120 calories, the p -value of 0.00093 is the probability of observing a sample mean of 155.6 calories or more. B) If the population mean is 120 calories, the p -value of 0.00093 is the probability of observing a sample mean of 155.6 calories or less. C)If the population mean is 120 calories, the p -value of 0.00093 is the probability of observing a sample mean of 155.6 calories or more, or a sample mean of 84.4 calories or less. .D)If the population mean is 155.6 calories, the p -value of 0.00093…
If, in a (two-tail) hypothesis test, the p-value is 0.0921, what is your statistical decision if you test the null hypothesis at the 0.06 level of significance?
The NAEP considers that a national average of 283 is an acceptable performance. Using α = .05, run a two-tail t-test for one sample to test Ho: µ=283 for the 2019 scores. Report the t-obt, df, and p-values. Would you reject the null hypothesis that the 2019 scores come from a population with average 283? If this is the case, does it come from a population from larger or smaller average?
the city's waste manager is interested in testing to see if the mean amount of garbage per bin is different from 50 pounds. In a random sample of 36 bins, the sample mean amount was 50.67 pounds and the sample standard deviation was 3.9 pounds. Conduct the appropriate hypothesis test using a 0.01 level of significance.a) What are the appropriate null and alternative hypotheses? a. H0: ? = 50 versus Ha: ? < 50 b. H0: ? = 50 versus Ha: ? ≠ 50 c. H0: x = 50 versus Ha: x ≠ 50 d. H0: ? = 50 versus Ha: ? > 50 B.) What is the test statistic? C.) What is the P-value for the test?
For the problem below-Use .05 2-tailed alpha level. State null and alternative hypotheses. Report results of statistical test. Given your conclusion, what type of error might you be making? Report Cohen’s d value and interpret
For the given value of α and observed significance level (p -value), indicate whether the null hypothesis would be rejected.α = 0.01, p- value = 0.09 Reject H0 Fail to reject H0

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It is commonly believed that the mean body temperature of a healthy adult is 98.6° F. You are not entirely convinced. You believe that it is not 98.6° F. If you are going to test this claim at the 0.01 significance level, what would be your null and alternative hypotheses?