In 1942, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you on occasion consume, alcoholic beverages?" Of the 1100 adults surveyed, 440 in that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 418 indicated that they were total abstainers. Complete parts (a) and (b) below. ۰۰۹۰۳۹ - 2 Find the test statistic for this hypothesis test. 0.96 (Round to two decimal places as needed.) Determine the P-value for this hypothesis test.

A study conducted among college students looked at the influence of religiosity (high, medium, or low) on anger frequency (never, sometimes, or often) in the last month. The responses of randomly selected college students at a large school in the United States are shown in the following table. Anger Frequency Never Sometimes Often High 214 What is the correct conclusion for this hypothesis test? 145 29 Medium 129 61 18 Low 60 55 27 You want to determine if anger frequency and religiosity are independent. Use a level of significance of a = 0.10. O As the P-value is less than a, we reject the null hypothesis. Thus, there is sufficient evidence to conclude that anger frequency and religiosity are not independent. O As the P-value is less than a, we reject the null hypothesis. Thus, there is insufficient evidence to conclude that anger frequency and religiosity are not independent. O As the P-value is less than a, we fail to reject the null hypothesis. Thus, there is sufficient evidence to…

Home Prices in Pennsylvania A real estate agentclaims that the average price of a home sold in BeaverCounty, Pennsylvania, is $60,000. A random sample of36 homes sold in the county is selected, and the prices indollars are shown. Is there enough evidence to reject theagent’s claim at a  0.05? Assume s  $76,025.9,500 54,000 99,000 94,000 80,00029,000 121,500 184,750 15,000 164,4506,000 13,000 188,400 121,000 308,00042,000 7,500 32,900 126,900 25,22595,000 92,000 38,000 60,000 211,00015,000 28,000 53,500 27,000 21,00076,000 85,000 25,225 40,000 97,000284,000

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A group of 500 people were asked to cast votes regarding a particular political issue. The following frequencies occurred.                       Favor           Undecided              Oppose                  Totals Female             180                  80                          40                         300 Male                 150                  20                         30                         200 Totals                330                 100                         70                         500 1. Determine if voters’ opinions are independent or dependent of gender.  Set up hypotheses; perform a test for independence; analyze all relevant aspects of your conclusion.

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Abnormalities In the 1980s it was generally believedthat congenital abnormalities affected about 5% of thenation’s children. Some people believe that the increasein the number of chemicals in the environment has ledto an increase in the incidence of abnormalities. A recentstudy examined 384 children and found that 46 of themshowed signs of an abnormality. Is this strong evidencethat the risk has increased?a) Write appropriate hypotheses.b) Check the necessary assumptions.c) Perform the mechanics of the test. What is theP-value?d) Explain carefully what the P-value means in context.e) What’s your conclusion?f) Do environmental chemicals cause congenitalabnormalities?

A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 258 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 55 62 117 Not Vaccinated 70 71 141 Total 125 133 258 Copy Data Step 1 of 8: State the null and alternative hypothesis.

A researcher investigates whether classical music is more or less soothing to air-traffic controllers than modern music. She plays a classical selection to a group of people and measures their irritability. 24 hours later she plays the same group a modern selection and then measures their irritability. What test should she perform?   Question 3 options:   Single sample t test   ANOVA   Paired samples t test   Independent samples t test

Homa An education researcher claims that 60% of college students work year-round. In a random sample of 300 college students, 180 say they work year-round. Al a=0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. O C. Atleast % of college students work year-round. book OD. The percentage of college students who work year-round is not %. cer Contents Let p be the population proportion of successes, where a success is a college student who works year-round. State Ho and H. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) O A. Ho p# GB. H, p=0.60 media Library OC. Ho P Plan OF. Ho ps H, p Tor Success (b) Find the critical value(s) and identify the rejection region(s). sible Resources Identify the critical value(s) for this test. for Success %3D (Round to two decimal places as needed. Use a comma to separate answers as needed.) Clear all Check answer View an…