> Next question You can retry this question belowPart 1 of 4Apparently having nothing better to do, you decide to flip two coins 192 times. The results are in thetable below. Are the coins fair? Test at a 2% level of significance.Coin FlipsCoin FlipHHHTΤΗTTStep 1: State the null and alternative hypotheses.Ho: The coins are fair. V✓Ha: The coins aren't fair ✓✓FrequencyTo perform a goodness-of-fit test for this problem, use a chi-square3✓degrees of freedom.Coin FlipsHHHT43555242Step 2: Assuming the null hypothesis is true, determine the features of the distribution usedto perform the goodness-of-fit test.Step 3: Find the p-value of the point estimate.First identify the observed and expected values.Observed and Expected ValuesObserved Values (O) Expected Values (E)ΤΗTTSubmit Part43555242Now find the p-value.P(x² VQuestion Help: Post to forum=PayY✓▼ Part 2 of 4✓✓distribution withPart 3 of 4

Answered: Image /qna-images/answer/7aebdf13-829b-4b74-8bc1-03f6eca0d388.jpg

Answered: Apparently having nothing better to do,…

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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Suppose are running a study/poll about the accuracy rate for fingerprint identification. You randomly sample 74 people and find that 41 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho:p = 0.53 Ha:p + 0.53 Calculate the test statistic, rounded to 3 decimal places = Z
Pa 1 2 3
IQ scores: Scores on an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation s= 8. The developer of the test claims that the population standard deviation is greater than o= 13. Do these data provide sufficient evidence to support this claim? Use the a=0.01 level of significance. 民 Part: 0/ 5 Part 1 of 5 alo State the appropriate null and alternate hypotheses. Ho: (Choose one) ▼ H1:0 (Choose one) ▼ This hypothesis test is a (Choose one) test.
Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
B. Calculate the value of the test statistic. χ2=____ C. Use technology to determine the P-value for the test statistic. The P-value is______ D. What is the correct conclusion at the α=0.10 level of significance? Since the P-value is(greater or less)than the level of significance. (Do not reject or reject) the null hypothesis. There (is or is not) sufficient evidence to conclude that the standard deviation of heights of major-league baseball players is less than 2.4 inches at the 0.10 level of significance.
In a one-tail hypothesis test where you reject Ho only in the upper tail, what is the p-value if ZSTAT = +2.40? Click here to view page 1 of the Normal table. Click here to view page 2 of the Normal table. The p-value is (Round to four decimal places as needed.)
Fill in the blanks with either small or large. A) You are more likely to reject the null hypothesis when the effect size is _____. B) You are more likely to reject the null hypothesis when the standard deviation is _____. C) You are more likely to reject the null hypothesis when the standard error is _______.
(c) Is B, significant? Use a = 0.05. State the null and alternative hypotheses. Ho: B2 Ha: B2 > 0 Ho: B2 0 Ha: B2s 0 O Ho: B2 # 0 Ha: B2 O Ho: B2 = 0 Ha: B2 # 0 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value State your conclusion. Do not reject Ho: There is sufficient evidence to conclude that B, is significant. Do not reject Ho. There is insufficient evidence to conclude that B, is significant. Reject Ho. There is sufficient evidence to conclude that ß, is significant. Reject Ho. There is insufficient evidence to conclude that ß, is significant.
A random sample of n = 25 is obtained from a population with variance ?2, and the sample mean is computed to be ?̅= 70. Consider the null hypothesis ?0: ? =80 versus the alternative hypothesis ?1: ? < 80. Compute the p-value when the population variance is ?2 = 600.
A banker, who works at a credit union, is interested in studying the average percent of banking fees customers per on a monthly basis. It is known that the average monthly banking fee is 9 dollars. The banker believes the average monthly banking fee has increased. What are the hypotheses? Fill in the blanks with the correct symbol (=,#,) to represent the correct hypothesis. Sorry, that's incorrect. Try again? null hypothesis :H 19 alternative hypothesis : µ 9
Question Help v Listed below are the lead concentrations in ug/g measured in different traditional medicines. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 ug/g. Assume that the sample is a simple random sample. 12.5 17.5 22 6.5 18 18 16 19 6.5 D Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? Ο Α. Ho μ 18 μga H,: µ#18 ug/g O B. Ho: = 18 ug/g H;: µ 18 ug/g O D. Ho: u> 18 µg/g Η : μ< 18 μg Determine the test statistic. |(Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. V Ho. There is evidence to conclude that the mean lead concentration for all such medicines is V 18 μg g. ? Click to select your answer(s). MacBook Ai DII 80 888 F7 FS FA F3 esc F2 & de 23 %24 8 5 6 7 2 3 4 1 P U Q W E 11 J K F G I
Assume that, on the average, normal rhesus monkeys spend an mean of 60 minutes dreaming while sleeping at night (thus, μ = 60 minutes). Time spent dreaming is typically referred to as REM sleep (Rapid Eye Movement). You are interested in the effects a new dream-enhancing drug has on dreaming since an increase in the time spent dreaming while sleeping is thought to be a good thing in terms of getting a "restful" sleep. You want to pursue testing the drug in humans if there is any evidence that it significantly increases nightly dreaming time in these nonhuman primates. Ten rhesus monkeys are administered the drug in the morning and their dream time (in minutes) is monitored that night. The alternate hypothesis is: the drug will increase time spent dreaming, or the time in REM sleep. You obtain the following times (minutes) each monkey spent dreaming: 52, 69, 74, 60, 67, 65, 69, 55, 63, 68 Set alpha at a = .01, and complete step 4 of the hypothesis testing procedure, what decision should…

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