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An Introduction to Mathematical Statistics and Its Applications (6th Edition)
- NEED ASAP!!! I'll rate positive for sure...arrow_forwardA reader wrote in to the “Ask Marilyn” column in Parade magazine to say that his grandfather told him that in three-quarters of all baseball games, the winning team scores more runsin one inning than the losing team scores in the entire game. (This phenomenon is known asa “big bang.”) Marilyn responded that this proportion seemed too high to be believable. Letp be the proportion of all major-league baseball games in which a “big bang” occurs. 1. Restate the grandfather’s assertion as the null hypothesis, in symbols and in words. 2. Given Marilyn’s conjecture, state the alternative hypothesis, in symbols and in words. To investigate this claim, we randomly selected one week of the 2006 major-league baseball season, which turned out to be July 31-August 6, 2006. Then we examined the 95games played that week to determine which had a big bang and which did not. Of the 95 games in our sample, 47 contained a big bang. 3. Is this sample proportion less than three-fourths and therefore…arrow_forwardConduct a t-test...arrow_forward
- Need help with first question: "the size of a population......"arrow_forwardIn an effort to demonstrate that swearing can help reduce ratings of pain, a researcher asked participants to plunge a hand in ice water as long as the pain would allow. In one condition, the participants were asked to repeat their favorite curse words while their hands were in water.I n the other condition, the participants repeated a set of neutral words . The researcher measured the amount of time the participants were able to tolerate the pain in each condition. The data is given below: Participants Swear Word Neutral word Tiara 94 59 Victoria 70 61 Kelly 52 47 Holden 83 60 Kasidy 46 35 Ryan 117 92 Alec 69 53 Danielle 39 30 Kathy 51 56 Lauren 73 61 Do the above data indicate a significant difference in pain tolerance between the two conditions? Use JASP to run a paired* t-test and show all the steps involved in hypothesis testing as shown in the sample…arrow_forwardIn an effort to demonstrate that swearing can help reduce ratings of pain, a researcher asked participants to plunge a hand in ice water as long as the pain would allow. In one condition, the participants were asked to repeat their favorite curse words while their hands were in water.I n the other condition, the participants repeated a set of neutral words . The researcher measured the amount of time the participants were able to tolerate the pain in each condition. The data is given below: Participants Swear Word Neutral word Tiara 94 59 Victoria 70 61 Kelly 52 47 Holden 83 60 Kasidy 46 35 Ryan 117 92 Alec 69 53 Danielle 39 30 Kathy 51 56 Lauren 73 61 Do the above data indicate a significant difference in pain tolerance between the two conditions? run a paired* t-test and show all the steps involved in hypothesis testing as shown in the sample solution.…arrow_forward
- A bicycle manufacturer observes that the number of bike paths in a city affects the number of bicycles sold. The previous observations are given below. In order to realize the sale of 500 bicycles, how many bike paths should be constructed? Number of bike Number of bicycles paths sold 18 306 21 378 25 402 16 310 14 298 27 435 13 285 O a. 38.65 O b. 33.67 Oc. 10.33 Od. 17.72 O e. 10.68arrow_forward. Is using meditation to relax and clear the mind a natural way to treat insomnia? Design an experiment to investigate this question. Assume that you have 20 individuals who suffer from insomnia available to participate in the study. At the end of two months, you will ask subjects to rate their sleep quality.arrow_forwardSuppose you are interested in the percentage of students who had burrito for lunch in your statistics class. There are a total of 120 students in your class. Instead of asking each student whether they had burrito for lunch, you randomly picked 36 students from the class and found that 11 studentshad burrito for lunch.a. What is the population in this question?b. What is the parameter of interest?c. Calculate a single value to estimate the parameter of interest.arrow_forward
- Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b) below. Original claim: More than 42% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.0156. a. State a conclusion about the null hypothesis. (Reject H, or fail to reject Ho.) Choose the correct answer below. O A. Reject H, because the P-value is less than or equal to a. O B. Fail to reject H, because the P-value is greater than a. O C. Fail to reject H, because the P-value is less than or equal to a. D. Reject H, because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? O A. The percentage of adults that would erase all of their personal information online if they could is less than or equal to 42%. O B. There is not sufficient evidence to support the claim that the percentage of adults that…arrow_forward"The number of accidents..." please help with i, ii, and iiiarrow_forwardDoes talking while walking slow you down? A study considered mean cadence (steps per minute) for subjects using no walking device, a standard walker, a rolling walker, and a guided walker. In addition, the cadence was measured when the subjects had to perform dual tasks. The second task was to respond vocally to a signal while walking. Cadence was measured for subjects who were just walking (using no device, a standard walker, a rolling walker, or a guided walker) and for subjects required to respond to a signal while walking. (a) List the factors and the number of levels of each factor. (Select all that apply.) mean cadence, with three levelswalking device, with four levelstask, with two levelswalking device, with three levelstask, with three levelsmean cadence, with two levels (b) How many cells are there in the data table? cellsarrow_forward
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