For each of the questions 1-4, answer the following (a-h are steps in a Hypothesis Test, see page 376 of your ebook). For steps f and g do both the p-valuemethod and the critical value method:a) Claim in English:b) Claim in Symbolic Form:c) Null and Alternate Hypothesis:d) Significance Level:e) Test Statistic:f) Find Values:g) Make a Decision:h) Restate the Decision in Nontechnical Terms:i) If this is a statistically significant result, is it also a practically significant result? 2. A homeowner is concerned about the level of radon in the basement of her house. The EPA suggests that efforts made to reduce the level of gas if the levelis above 4pCi/L (picocuries per Liter). The homeowner purchases a radon-testing kit, and she found the following levels for the first week:4.23.94.14.23.94.23.83.94.34.2Test, at the 0.05 significance level, test whether the radon level is above the EPA limit.

Let be the population mean radon level.Given that,Population mean Sample size

Answered: a) Claim in English: b) Claim in…

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 6E: List the sample space of each experiment. Tossing three coins

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List the sample space of each experiment. Tossing three coins
C and D
Solve the problem. Which of the following is not one of the four steps of the hypothesis test? A)State the level of significance, choose a test, and check the conditions for the test. B)Calculate the test statistic and the p-value. C)State the null and alternative hypothesis about the population parameter. D)Make a decision to either accept the null hypothesis or accept the alternative hypothesis.
Write the null and alternative hypothesis for the following (use symbols): b. One Tailed Z Test i. H0: ii. H1:
Consider a question one could have come across in college, career, or personal life. Describe and apply the five steps below. Five Step Process for Hypothesis Testing: Step 1: State the hypothesis to be tested. Step 2: Specify the decision rule. Step 3: Collect data and calculate necessary statistics to test the hypothesis. Step 4: Make a decision. Step 5: Take action based on the decision. An example: Step 1: State the hypothesis to be tested. Ho: I will go to class today, Ha: I will not go to class today. Step 2: Specify the decision rule. If there is a "high" probability of rain, I will not go to class. If P(rain) ≤0.70, I will go to class (Fail to Reject Ho). Step 3: Collect data and calculate necessary statistics to test the hypothesis. Watch the Weather Channel, check local news, check iphone app to collect data. Statistics for today: Weather Channel: P(rain)=0.50 Local News: P(rain)=0.40 iphone app: P(rain)=0.65 Step 4: Make a decision. All of the statistics…
A noted psychic was tested for ESP. The psychic was presented with 200 cards face down and askedto determine if the card was one of five symbols: a star, cross, circle, square, or three wavy lines. Thepsychic was correct in 50 cases. To determine if he has ESP, we want to know if his success rate is betterthan someone who just guesses. That is, we test the hypotheses H0: p = 0.20, Ha: p > 0.20, where prepresent the proportion of cards for which the psychic correctly identifies the symbol in random trials.Assume the 200 trials described above can be treated as an SRS from the population of all guesses thepsychic would make in his lifetime. The P-value of this test isA) between .10 and .05.B) between .05 and .025.C) between .025 and .01.D) between .01 and .001.E) below .001.
A research study wanted to examine whether religious belief and gender are related in their state. They selected a representative sample of men and women in their State.Select the null and alternative hypothesis of the test: A. H0: there is no relationship between gender and belief about human origins Ha: there is a relationship between gender and belief about human origins B. H0: there is a relationship between gender and belief about human origins Ha: there is no relationship between gender and belief about human origins Results of the study are summarized in this table for the Belief about human origins: religious texts evolutionary theory total male 30 36 66 female 108 89 197 total 138 125 263 The degrees of freedom for the the ?2 statistic are Round the following numbers to two places after the decimal:The test statistic is ?2 = with a p-value = The conclusion of the test at the 5% significance level is Gender and belief about human origins are…
Please answer B, C, & D.
Use the traditional method in testing the hypothesis in the problems below. In each problem, state the following:d. Make the decisione. Summarize the result The manager of the cosmetics section of a large department store wants to determine whether newspaper advertising really does affect sales. For her experiment, she randomly selects 15 items currently in stock and proceeds to establish a baseline. The 15 items are priced at their usual competitive values, and the quantity of each item sold for a 1-week period is recorded. Then, without changing their price, she places a large ad in the newspaper, advertising the 15 items. Again, she records the quantity sold for a 1-week period. The results follow. Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15No. of Items Sold Before Ad 25 18 3 42 16 20 23 32 60 40 27 7 13 23 16No. of Items Sold After Ad 32 24 7 40 19 25 23 35 60 43 28 11 12 32 28
When performing a hypothesis test upon two dependent samples, the variable of interest is Group of answer choices a.the absolute value of the differences that exist between the matched-pair data. b.the differences that exist between the matched-pair data. c.the data that is the same in both samples. d.all of the combined data.
Assignment No. 5 – Hypothesis Testing PROBLEMS. Answer the following problem as indicated. Show all your solutions. (Critcal values are presented at the tables below.) 1. Forty four out of 80 Americans and 41 out of 90 Europeans wished that they were emotionally healthy. At 1% significance level, is there a significant difference in the proportion of Americans and Europeans who wished to be emotionally healthy? А. Но: На: B. What is the level of significance? C. Type of Test D. What test statistics (statistical tool) will be used? E. Determine the Critical Value/Rejection Region: F. Compute the value of the test statistic: G. State the: Statistical Decision: Statistical Conclusion: Research Conclusion:
In Exercises, hypothesis tests are proposed. For each hypothesis test, a.identify the variable.b.identify the two populations.c.identify the pairs.d.identify the paired-difference variable.e.determine the null and alternative hypotheses.f.classify the hypothesis test as two tailed, left tailed, or right tailed. TV Viewing. The A. C. Nielsen Company collects data on the TV viewing habits of Americans and publishes the information in Nielsen Report on Television. Suppose that you want to use a paired sample to decide whether the mean viewing times of married men and married women differ.

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