I NEED HELP WITH THESE MATH PROBLEMS PLEASE C

Choose the best description and example of the alternative hypothesis in a hypothesis test. __ A statistical hypothesis that there is no difference between a parameter and a certain value, or between two parameters. Example: H1 :pl 2102 A statistical hypothesis that there is a difference between a parameter and a certain value, or between two 'V' parameters. Example: H1 :pl 78 In hypothesis testing, why can't the hypothesis be proved true? (I:- The null hypothesis states equality, and equality can never be proven. O The only way to prove something would be to use a sample larger than is practical. C- The only way to prove something would be to use the entire population under study. (3- The null hypothesis is only a guess, and our sample can prove it false but not true. For the following conjecture, state the null and alternative hypotheses. The average cost of a DVD player has decreased from $79.95. The null hypothesis is H: The alternative hypothesis is H1:For the following conjecture, state the null and alternative hypotheses. The average age of attorneys is 25.4 years. The null hypothesis is H: The alternative hypothesis is H1:Sick Days in Bed A researcher wishes to see if the average number of sick days a worker takes per year is less than 5. A random sample of26 workers at a large department store had a mean of 4.6. The standard deviation of the population is 1.3.15 there enough evidence to support the researcher's claim at 0: = 0.10? Assume that the variable is normally distributed. Use the critical value method with tables. Part: 0/5 Part lof5 State the hypotheses and identify the claim with the correct hypothesis. Emu l:l H1 Ci I:I This hypothesis test is a |(Choose one) V | test. Telephone Calls A researcher knew that before cell phones, a person made on average 2.5 calls per day. He believes that the number of calls made per day today is higher. He selects a random sample of 32 individuals who use a cell phone and asks them to keep track of the number of calls that they made on a certain day. The mean was 2.7. At (1 = 0.05, is there enough evidence to support the researcher's claim? The standard deviation for the population found by a previous study is 0.6. Assume that the variable is normally distributed. Use the P-value method with tables. Part: 0/5 PartloFS State the hypotheses and identify the claim. H0: |:l |(Choose one) Y| H13 '3 l@l The hypothesis test is a | [Choose one) V | test. Prison Sentences The average length of prison term in the United States for white collar crime is 34.9 months. A random sample of 43 prison terms indicated a mean stay of 33.4 months with a standard deviation of 9.2 months. At (1 : 0.01, is there sufficient evidence to conclude that the average stay differs from 34.9 months? Part: 0] 5 Partiof5 State the hypotheses and identify the claim with the correct hypothesis. HUM I:| H1=|_| |:| This hypothesis test is a IW' test. Cigarette Smoking A researcher found that a cigarette smoker smokes on average 34 cigarettes a day. She feels that this average is too high. She selected a random sample of 11 smokers and found that the mean number of cigarettes they smoked per day was 28. The sample standard deviation was 2.6. At a = 0.01, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables. Part: 0 / 5 Part 1 of 5 (a) State the hypotheses and identify the claim. Ho (Choose one) (Choose one) This hypothesis test is a (Choose one) test.I Number of Words in a Novel The National Novel Writing Association states that the average novel is at least 50,000 words. A particularly ambitious writing club at a college-preparatory high school had randomly selected members with works of the [ following lengths. At a : 0.05, is there sufficient evidence to conclude that the mean length is greater than 50.000 words? Assume that the population is approximately normally distributed. I 49.240 51.997 50.715 49.013 51.283 51.643 49,568 Send data to Excel Part: 0/5 PartiofS (a) State the hypotheses and identify the claim. Ho= |_| li H |:| I@i This hypothesis test is a |(choose one) Y | test. Sleep Time A person read that the average number of hours an adult sleeps on Friday night to Saturday morning was 6.9 hours. The researcher feels that college students do not sleep 6.9 hours on average. The researcher randomly selected 14 students and found that on average they slept 7.5 hours. The standard deviation of the sample is 1.4 hours. At a = 0.05, is there enough evidence to say that college students do not sleep 6.9 hours on average? Assume that the population is approximately normally distributed. Use the P-value method and tables. Part: 0/5 Partlof5 (a) State the hypotheses and identify the claim. H0: |_| |[Choose one) Y | H1: |_| |[Choose one) Y | This hypothesis test is a |(Choose one) Y |test