Determine the P-value.

John's answering machine receives about 28 telephone calls between 8:00 am and 8:00 pm. Let X = the number of phone calls received between 1:00 pm to 3:00 pm. What is the mean of X?

Quit smoking: A recent study reported that in a sample of 234 European-American HIV-positive smokers, 105 of them had used a nicotine patch to try to quit smoking, and in a sample of 81 Hispanic-American HIV-positive smokers, 25 had used a nicotine patch. Can you conclude that the proportion of patch users is greater among European-Americans? Let p₁ denote the proportion of European-Americans who used the patch. Use the a=0.01 level of significance. Part 1 of 4 (a) State the appropriate null and alternate hypotheses. Ho: P₁ (Choose one) ▼ P₂ H₁: P₁ (Choose one) P2 This is a (Choose one) test. Part 2 of 4 (b) Find the P-value. Round the answer to four decimal places. P-value= X S Ś

q16

Let P(A)= 0.459.   Find P(A¯¯¯¯).  do not round your answer

You want to determine if there is a difference in the number of times statistics students get asked out on dates compared to biology students. You randomly survey four statistics students and four biology students. Data are listed on the table. Statistics                Biology  students                 studentsX                                 Y8                                144                                108                                 64                                10Conduct an independent t-test to see if there is a significant difference. (Be sure to complete all 4 steps.)

Is the average time to complete an obstacle course longer when a patch is placed over the right eye than when a patch is placed over the left eye? Eight randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Right 40 46 42 45 40 48 42 42 Left 38 46 41 45 36 45 39 43 Assume a Normal distribution.  What can be concluded at the the αα = 0.05 level of significance level of significance? For this study, we should use        The null and alternative hypotheses would be:        H0:H0:                  (please enter a decimal)     Ha:Ha:                  (Please enter a decimal) The test statistic     =  (please show your answer to 3 decimal places.) The p-value =  (Please show your answer to 4 decimal places.) The…

What is (b) p(z>-0.15) = ?  Answer choices are .3945, -1,04,.5596,.6055,.4404

Comment on the P-value for testing the claim p1- p2=0

What is the relationship between R sqare and p-value?