A report on the nightly news broadcast stated that 10 out of 105 households with pet dogs were burglarized and 24 out of 212 without pet dogs were burglarized. Suppose that this sample data is used to test the claim that there is a difference in the proportion of homes with dogs that are burglarized and the proportion of homes without dogs that are burglarized. What are the hypotheses for the test?
1. Ho: p1 > p2 Ha: p1 < p2
2. Ho: p1 = p2 Ha: p1 ≠ p2
3. Ho: p1 ≠ p2 Ha: p1 = p2
4. Ho: p1 < p2 Ha: p1 > p2
Option 2) is correct.
2. Ho: p1 = p2 Ha: p1 ≠ p2.........................Two tailed test.
A report on the nightly news broadcast stated that 10 out of 105 households with pet...
7) (10 pts) A report on the nightly news broadcast stated that 14 out of 115 households with pet dogs burglarized and 23 out of 125 without pet dogs were burglarized. At the 5 % significance level, do the data provide sufficient evidence to conclude that households with pet dogs are at less risk of being burglarized? Use the P-value approach. Write which test from TI-calculator you used. were TEST USED: Ho: H1: Decision: P-value Test-statistic
The table shows the number of households burglarized in a sample of households with dogs and in a sample of households without dogs. Assume that you plan to use a significance level of α = 0.01 to test the claim that p_1<p_2p1<p2 Find the critical value(s) for this hypothesis test. Do the data support the claim that a smaller proportion of households with pet dogs are burglarized? Household with Dog Household without Dog Number of households in sample 209 117...
It is widely thought that that households with dogs are less likely to be burglarized than homes without dogs. Assume that you plan to test this claim using .01 significance level. Two large samples are selected; the table shows the number of households burglarized in a sample of households with dogs and in a sample of households without dogs: Household with dog Household without dog Number of households in sample 206 140 Number of households burglarized 20 11 Find the...
Suppose researchers interested in the effects of adolescent exposure to mold in a household is associated with asthma. Researchers collected information about a sample of children living in homes determined to have a significant amount of potential mold exposure and determined that 154 out of the 213 children had asthma. After a sample of 428 households with not a sufficient amount of mold exposure, only 108 children were found to have asthma. A) Conduct a statistical test to determine if...
MULTI-PART Question: (4 parts) According to a report on sleep deprivation by the Centers for Disease Control and Prevention, the proportion of California residents who reported insufficient rest or sleep during the on each of the preceding 30 days is 8.0% while this proportion is 8.8% for Oregon residents. A random sample of 11,545 California and 4,691 Oregon residents were surveyed. We are interested in finding out if there is evidence to suggest that the rate of sleep deprivation is...
My Notes The report titled "Digital Democracy Survey stated that 31% of the people in a representative sample of adult Americans age 33 to 49 rated a landine telephone among the three most important services that they purchase for their home in a representative sample of adult Americans age 50 to 68, 48% rated a landine telephone as one of the top three services they purchase for their home. Suppose that the samples were independently selected and that the sample...
4. A surprising number of young adults (ages 19 to 25) still live in a parent's home. A random sample by the National Institutes of Health included 2253 men and 2629 women in this age group. The survey found that 986 of the men and 923 of the women lived with their parents. Is this good evidence that different proportions of men and women live with their parents? How large is the difference between the proportions of young men and...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
(1 point) Based on information from Diagnostic Tests with Nursing Implications, Springhouse Corporation, for the population of healthy female adults, the mean red blood cell count (RBC) is 4.8 (millions of cells per cubic millimeter of whole blood). A researcher thinks the RBC is underestimated, so she conducts a test of significance using Null Hypothesis: u s 4.8 vs. Alternative Hypothesis: ? > 4.8. If the true mean RBC is 4.75 and the null hypothesis is rejected, what has occurred?...
8. A random sample of 25 college males was obtained and each was
asked to report their actual height and what they wished as their
ideal height. A 95% confidence interval for μd= average difference
between their ideal and actual heights was 0.8" to 2.2". Based on
this interval, which one of the null hypotheses below (versus a
two-sided alternative)can be rejected?
A. H0: μd= 0.5
B. H0: μd= 1.0
C. H0: μd= 1.5
D. H0: μd= 2.0
9. The...