Annie is concerned over a report that "a woman over age 4040 has a better chance of being killed by a terrorist than of getting married." A study found that the likelihood of marriage for a never-previously-wed, 4040-year-old university-educated American woman was 2.8%2.8%. To demonstrate that this percentage is too small, Annie uses her resources at the Baltimore Sun to conduct a simple random sample of 513513 never-previously-wed, university-educated, American women who were single at the beginning of their 4040s and who are now 4545. Of these women, 2323 report now being married. Does this evidence support Annie’s claim, at the 0.050.05 level of significance, that the chances of getting married for this group is greater than 2.8%2.8%?   Step 3 of 3 :   Draw a conclusion and interpret the decision.

A simple random sample of size n = 200 drivers with a valid driver's license is asked if they drive an American-made automobile. Of the 200 drivers surveyed, 123 responded that they drive an American-made automobile. Determine if a majority of those with a valid driver's license drive an American-made automobile at the x = 0.05 level of significance. A. Hypothesis test on a population proportion OB. Hypothesis test on a population mean OC. Hypothesis test on a population standard deviation Determine the null and alternative hypotheses. Ho ▼ ▼ H₁ (Type integers or decimals. Do not round.) Clear all Check answer Help me solve this # 5:14 PM 6/18/2022 Type here to search 3 4 View an example R 5 G O B Get more help. E H N 8 1 M K P 96°F Mostly sunny

When two births are randomly selected, the sample space for genders is bb, bg, gb, and gg. Assume that those four outcomes are equally likely. Construct a table that describes the sampling distribution of the sample proportion of girls sample proportions equal the proportion of girls in two births? Does the result suggest that a sample proportion is an unbiased estimator of a population proportion? For the entire population, assume the probability of having a boy is is not affected by how many boys or girls have previously been born. Determine the probabilities of each sample proportion. Sample proportion of girls ▼ Does the mean of the sample proportions equal the proportion of girls in two births? O A. Yes, both the mean of the sample proportions and the population proportion are 4 1 O B. Yes, both the mean of the sample proportions and the population proportion are 3 O C. Yes, both the mean of the sample proportions and the population proportion are 1 2 O D. No, the mean of the…

Travelers who have no intention of showing up often fail to cancel their hotel reservations in a timely manner.  These        travelers are known, in the parlance of the hospitality trade, as “no-shows”.  To protect against no-shows and late        cancellations, hotels invariably overbook rooms.  A recent study examined the problems of over-booking rooms in the hotel        industry.  The following data, extracted from the study represent the daily numbers of late cancellations and no-shows for a        random sample of 10 days at a hotel:     18, 16, 16, 16, 14, 18, 16, 18, 14, 19. c)    Count the number of measurements that actually fall within the interval(x¯−2s, x¯+2s){  and express the interval count as a percentage of total number of measurements

One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 55 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 55 minutes for the cable technician to arrive. The customer asks a simple random sample of 4 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 62.1 minutes with a standard deviation of 8.3 minutes. Assume that the population distribution is approximately normal. Test the customer’s claim at the 0.05 level of significance.   Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places.

If a journal publishes 50 scientific papers per year, each using a significance level of 5%, what is the probability at least one of them encountered a type I error?

A nonprofit company concerned with the school dropout rates has designed a tutoring program aimed at students between 16 to 18 years old. A national center for educational statistics reported that the high school dropout rate for the year 2000 was 10.9​%.One school​ district, who adopted the use of the​ nonprofit's tutoring program and whose dropout rate has always been very close to the national​ average, reported in 2004 that 158 of their 1769 students dropped out. Is their experience evidence that the tutoring program has been​ effective?   Determine the hypotheses for this test. Choose the correct answer below A. H0​: p=0.109 HA​: p≠0.109   B. H0​: p≠0.109 HA​: p=0.109   C. H0​: p=0.109 HA​: p<0.109   D. H0​: p=0.109 HA​: p≥0.109   E. H0​: p≥0.109 HA​: p=0.109   F. H0​: p≤0.109 HA​: p=0.109   Compute the test statistic. enter your response here ​*______*   Find the​ P-value. enter your response here* ______* 3. Is their experience evidence that the tutoring…

A recent national report states the marital status distribution of the male population age 18 or older is as follows: Never Married (31.1%), Married (55.9%), Widowed (3%), Divorced (10%). The table below shows the results of a random sample of 1824 adult men from California. Test the claim that the distribution from California is as expected at the a = 0.01 significance level. a. Complete the table by filling in the expected frequencies. Round to the nearest whole number: Frequencies of Marital Status Outcome Frequency Expected Frequency Never Married 562 Married 1024 Widowed 73 Divorced 165 b. What is the correct statistical test to use? Select an answer V c. What are the null and alternative hypotheses? Ho: O Marital status and residency are dependent. O Marital status and residency are independent. O The distribution of marital status in California is not the same as it is nationally. O The distribution of marital status in California is the same as it is nationally.

According to Pew Research Center surveys, 12% of American adults did not own a cell phone in 2012. Suppose Verizon Wireless would like to test if this percentage has recently changed. A recent random sample of 280 American adults was selected, and it was found that 29 of them did not own a cell phone. Using ? = 0.10, answer the following: a. What type of test will be used and what distribution? b. Based on this sample and using the 6 hypothesis steps, what conclusions can Verizon Wireless make about this population?

A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned.   Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.”    Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations.   1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.