Calculate the test statistic,

The College Board reported that 58.7% of all students who took the 2010 AP Statistics exam earned scores of 3 or higher.  One teacher wondered if the performance of her school was better.  She believed that year's students to be typical of those who will take AP Stats at that school and was pleased when 34 of her 54 students achieved scores of 3 or better. Ca she clain that her school is better? To verify her clain, test the following hypotheses at Alpha =5%. Ho:P = 0.587 vs Ho:P>0.587

At a high school debate tournament, half of the teams were asked to wear suits and ties and the rest were asked to wear jeans and T-shirts. The results are given in the table below. In order to test the claim at the 0.05 level that the proportion of wins is the same for teams wearing suits as for teams wearing jeans, what would the null hypothesis be? Win Loss Suit 22 28 T-Shirt 28 22 O A. The proportions of wins is different for teams wearing suits as for teams wearing jeans. O B. The proportions of wins is the same for teams wearing suits as for teams wearing jeans. O C. The mean number of wins is the same for teams wearing suits as for teams wearing jeans. O D. The mean number of wins is different for teams wearing suits as for teams wearing jeans.

A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national percentage. Suppose that a survey of 100 local seniors and 100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locally than nationally. Locally, 65 seniors reported using drugs or alcohol within the past month, while 60 national seniors reported using them. Conduct a hypothesis test at the 5% level.NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) Part (a) State the null hypothesis. H0: plocal ≠ pnational H0: plocal > pnational      H0: plocal = pnational H0: plocal < pnational Part (b) State the alternative hypothesis. Ha: plocal < pnational Ha: plocal = pnational      Ha: plocal ≠ pnational Ha: plocal > pnational…

In a recent Super Bowl, a TV network predicted that 36 % of the audience would express an interest in seeing one of its forthcoming television shows. The network ran commercials for these shows during the Super Bowl. The day after the Super Bowl, and Advertising Group sampled 102 people who saw the commercials and found that 33 of them said they would watch one of the television shows.Suppose you are have the following null and alternative hypotheses for a test you are running:H0:p=0.36H0:p=0.36Ha:p<0.36Ha:p<0.36Calculate the test statistic, rounded to 3 decimal places z=z=

You are conducting a study to see if the proportion of women over 40 who regularly have mammograms is significantly more than 0.73. If your null and alternative hypothesis are: Ho: p ≤ 0.73 H₁: p > 0.73 Then the test is: Oright tailed O left tailed two tailed

A new researcher at the BCIE believes that the success of the "Dogs Anti Anxiety" program lies with the gender of the dog. Specifically, he believes that male dogs are better at relieving anxiety compared to female dogs. The head of the BCIE (Dr. Wolf) is not really convinced. She believes that the secret to relieving anxiety lies with the age of the dog. Together they devise an experiment to test this hypothesis. Specifically, they assign 28 participants to one of four therapy groups (male puppy, male senior dog, female puppy, female senior dog) for one week. At the end of the week, they measure the anxiety level of participants on a scale that ranges from 1 to 10 (with higher scores indicating more anxiety). The table below presents the data from their study. Please help the researchers solve the different steps in this factorial ANOVA. I have provided you with the formulas for a between groups factorial ANOVA and you need to fill in the 24 blanks to calculate SSage, SSgender.…

In a recent Super Bowl, a TV network predicted that 59 % of the audience would express an interest in seeing one of its forthcoming television shows. The network ran commercials for these shows during the Super Bowl. The day after the Super Bowl, and Advertising Group sampled 80 people who saw the commercials and found that 48 of them said they would watch one of the television shows. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho: p = 0.59 Ha: p0.59 Calculate the test statistic, rounded to 3 decimal places Z Submit Question

A USA Today article claims that the proportion of people who believe global warming is a serious issue is 0.63, but given the number of people you've talked to about this same issue, you believe it is less than 0.63. The hypotheses for this test are Null Hypothesis: p ≥ 0.63, Alternative Hypothesis: p < 0.63. If you randomly sample 20 people and 12 of them believe that global warming is a serious issue, what is your test statistic and p-value?   Question 3 options:   1)  Test Statistic: 0.278, P-Value: 0.391   2)  Test Statistic: 0.278, P-Value: 0.609   3)  Test Statistic: -0.278, P-Value: 0.782   4)  Test Statistic: -0.278, P-Value: 0.391   5)  Test Statistic: -0.278, P-Value: 0.609

A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 71%. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test.