Summary statistics for the scores of the 27 students who completed a Dental Anxiety Scale questionnaire are x= 10.7 and s= 3.3. Scores range from 0 (no anxiety) to 20 (extreme anxiety). Conduct a test of hypothesis to determine whether the mean Dental Anxiety Scale score for thepopulation of college students differs from u= 11. Use a= 0.01.State the null and alternative hypotheses. Choose the correct answer below.O A. Ho: u# 11 versus Ha:p= 11O B. Ho: H= 11 versus Hg: u> 11O c. Ho: u= 11 versus Ha:P#11The test statistic for this small-sample test of a population mean is(Round to two decimal places as needed.)Find the rejection region. Choose the correct answer below.O A. t> -2.779 and t<2.779O B. t< -2.779 or t> 2.779Oc. t< -2.779O D. t>2.779State the appropriate conclusion for the test. Choose the correct answer below.There is sufficient evidence to reject HoThere is insufficient evidence to reject Ho

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Summary statistics for the scores of the 27 students who completed a Dental Anxiety Scale questionnaire are x= 10.7 ands = 3.3. Scores range from 0 (no anxiety) to 20 (extreme anxiety). Conduct a test of hypothesis to determine whether the mean Dental Anxiety Scale score for th population of college students differs from u= 11. Use a0.01. State the null and alternative hypotheses. Choose the correct answer below. O A. Ho: u 11 versus H3: u= 11 O B. Ho: = 11 versus Ho: u> 11 OC. Ho: H= 11 versus Ha: H# 11 The test statistic for this small-sample test of a population mean is (Round to two decimal places needed.) Find the rejection region. Choose the correct answer below. O A. t> -2.779 and t<2.770 O B. t< -2.779 or t>2.770 Oc. t< -2.779 O D. t>2.779 State the appropriate conclusion for the test. Choose the correct answer below. There is sufficient evidence to reject Ho- There is insufficient evidence to reject Ho-

Summary statistics for the scores of the 27 students who completed a Dental Anxiety Scale questionnaire are x= 10.7 ands = 3.3. Scores range from 0 (no anxiety) to 20 (extreme anxiety). Conduct a test of hypothesis to determine whether the mean Dental Anxiety Scale score for th population of college students differs from u= 11. Use a0.01. State the null and alternative hypotheses. Choose the correct answer below. O A. Ho: u 11 versus H3: u= 11 O B. Ho: = 11 versus Ho: u> 11 OC. Ho: H= 11 versus Ha: H# 11 The test statistic for this small-sample test of a population mean is (Round to two decimal places needed.) Find the rejection region. Choose the correct answer below. O A. t> -2.779 and t<2.770 O B. t< -2.779 or t>2.770 Oc. t< -2.779 O D. t>2.779 State the appropriate conclusion for the test. Choose the correct answer below. There is sufficient evidence to reject Ho- There is insufficient evidence to reject Ho-

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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Use the pulse rates in beats per minute (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 74 bpm. Use a 0.01 significance level. E Click the icon to view the pulse rate data. Pulse Rate Data Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? Pulse Rate (bpm) O A. Ho: H= 74 bpm H1: H 74 bpm 57 35 104 86 ОС. Но: и» 74 bpm H1: µ<74 bpm O D. Ho: H=74 bpm H1: µ+74 bpm 97 101 62 49 59 73 Determine the test statistic. 69 45 104 42 |(Round to two decimal places as needed.) 52 105 99 36 Determine the P-value. 74 54 (Round to three decimal places as needed.) 105 60 56 82 State the final conclusion that addresses the original claim. 88 75 52 59 V Ho. There is evidence to conclude that the mean of the population of pulse rates for adult females is V 74 bpm. 82 104 97 76 76 47 97 74 63 52 93 98 104 53 35 35 100 39 Click to select your answer(s). 58 41
The median price of homes in in a certain city was $228,830. A sample of 200 homes sold in a suburb of the city found 113 homes with sales prices over $228,830 and 87 homes with sales prices under $228,830. Can you conclude that the median price of homes in the suburb differs from the median price of homes in the entir city? Use a = 0.05. State the null and alternative hypotheses. O Ho: Median # 228,830 H₂: Median = 228,830 O Ho: Median 2 228,830 H₂: Median 228,830 O Ho: Median > 228,830 H₂: Median = 228,830 Find the value of the test statistic. (Round your answer to two decimal places.) z = Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Do not reject Ho. There is sufficient evidence to conclude that the median price of homes in the suburb differs significantly from $228,830. Do not reject Ho. There is not sufficient evidence to conclude that the median price of homes in the suburb differs significantly from $228,830. O Reject Ho.…
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New Orleans' Coca Cola bottling center wants to determine whether the mean amount of product in a 12 oz can of Coke is actually 12 ounces. Thus, the null and alternative hypotheses are Ho: mu is equal to 12 ounces Ha: mu is not equal to 12 ouncesYou want to be extra sure that you aren't underfilling (which would open you up to a lawsuit). Being risk averse, you set out to conduct a hypothesis test at a stringent 99% level. Fill rates are distributed Normally. You take a sample of 50 different Coke cans and carefully measure the amount of product. From this sample, you calculate an avg fill of 12.3 ounces, with a standard deviation of 0.75 ounces. What do you conclude about the average amount of Coke product in the cans? Group of answer choices a. There is sufficient evidence to conclude that you are not filling to 12 ounces on average. b. There is NOT sufficient evidence to conclude that you are under- or over-filling on average.
K Use the IQ scores for the accompanying sample of individuals with low lead exposure to test the claim that they are from a population with a median IQ score of 100. Use a 0.01 significance level. Click the icon to view the data on IQ scores. F2 Find the null and alternative hypotheses. OA. Ho: Median = 100 H₁: Median #100 OC. Ho: Median = 100 H₁: Median 100 Find the test statistic. z=(Round to two decimal places as needed.) Find the P-value. F3 F4 F5 F6 W F7 DELL F8 Ō GET OB. Ho: Median # 100 H₁: Median = 100 OD. Ho: Median 100 H₁: Median = 100 F9 O F10 F11 :: F12 PrtScr 60 Submit quiz Insert Submit quiz 11:45 AM 4/9/2023 Delete
New Orleans' Coca Cola bottling center wants to determine whether the mean amount of product in a 12 oz can of Coke is actually 12 ounces. Thus, the null and alternative hypotheses are Ho: mu is equal to 12 ounces Ha: mu is not equal to 12 ouncesYou want to be extra sure that you aren't underfilling (which would open you up to a lawsuit). Being risk averse, you set out to conduct a hypothesis test at a stringent 99% level. Fill rates are distributed Normally. You take a sample of 50 different Coke cans and carefully measure the amount of product. From this sample, you calculate an avg fill of 12.3 ounces, with a standard deviation of 0.75 ounces. Do you reject or not-reject the null hypothesis? Group of answer choices Do not reject the null hypothesis. Reject the null hypothesis.
Please answer B, C, & D.
The US Department of Energy reported that 49% of homes were heated by natural gas. A random sample of 327 homes in Oregon found that 143 were heated by natural gas. Test the claim that proportion of homes in Oregon that were heated by natural gas is different than what was reported. Use a 10% significance level. Give answer to at least 4 decimal places. a. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) H0: H1: Based on the hypotheses, compute the following:b. Test Statistic = c. p-value = d. Based on the above we choose to e. The correct summary would be: that the proportion of homes in Oregon that were heated by natural gas is different than what the DOE reported value of 49%. Question HelpQuestion 14: Video1
Consumer Reports did a survey of 1100 adults and found that 565 were unhappy that their food did not look like the picture in the menu. Use a 0.05 significance level to test the claim that the majority of adults are annoyed by food that does not look like the picture in the menu. Identify the null and alternate hypotheses. TTTArial 3 (12pt) v T- = - E·V
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