Label the hypothesis as null or alternative A new experimental medicine has no effect on high blood pressure. O Alternative O Null
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- H0: u1 = u2 H0: u1 =/= u2 I need to know the test statistic, critical values, and whether or not to reject H0 if the test statistic falls in the rejection region.A researcher test a hypothesis find that p value equal to .2. Explain why the researcher cannot claim that the probability that the H subscript 0 is true is .2? You choose an alpha level of .01 and then analyze your data. What is the probability that you will make a Type I error given that the null hypothesis is true? What is the probability that you will make a Type I error given that the null hypothesis is false?✔ BOTTOM LINE QUESTION Find the antiderivative ftan* tdt.
- p 15 Is sunscreen with an SPF 30 rating more effective at preventing sunburn than sunscreen with an SPF 15 rating? At the alpha = 0.05 level of significance, test the claim that SPF 30 sunscreen is better at preventing sunburn than 15 sunscreen. Let represent the proportion of SPF 15 sunscreen wearers who get a sunburn and represent the proportion of SPF 30 sunscreen wearers who get a sunburn. (Round your results to three decimal places) 1. Which would be correct hypotheses for this test? O O H 0 :p 15 =p 30 , H 1 :p 15 ne p 30 H 0 :p 15 =p 30 , H H 1 :p 15 <p 30 O H 0 :p 15 <p 30 ,H 1 :p 15 >p 30 O H 0 :p 15 =p 30 H 1 :p 15 >p 30 A random sample of 250 beach-goers were given SPF 15 sunscreen and asked to lay in the sun for 1 hour10 of them later reported a sunburn. Another random sample of 250 beach- goers were given SPF 30 sunscreen and asked to lay in the sun for 1 hour. 7 of them later reported a sunburn. 2.Find the test statistic 3. Give the P-value: answer only…Available Sep 12 at 11:59pm - Oct 3 at 11:59pm 21 days Using the door-in-the-face technique (a psychological technique that works because participants are more likely to comply with a small request after first rejecting a large request), a researcher asks participants in the door-in-the-face condition to volunteer two weeks of their time to help out at a summer camp for impoverished children. When, as expected, they decline this large request, he asks them if they would be willing to donate money to the camp instead (the small request). For participants in the control condition, the researcher asks them to donate money (the small urse request) without mentioning the two-week volunteer timie. This is your data (in dollars donated for the camp): LCentral Foot-in-the-door condition Control condition toring 87 86 KIT 98 73 75 79 88 56 76 72 85 70 92 87 MacBook Pro Q Search or enter website nameThe Cadet is a popular model of sport utility vehicle, known for its relatively high resale value. For a random sample of 33 Cadets, each bought "new" two years ago and each sold "used" within the past month, the least-squares regression equation relating the two variables mileage (denoted by x) and used selling price (denoted by y, in dollars) was y = 39.52 – 0.56x . The standard error of the slope of this least-squares regression line was approximately 0.43. Based on this information, test for a significant linear relationship between the two variables by doing a hypothesis test regarding the population slope B,. (Assume that the variable y follows a normal distribution for each value of x and that the other regression assumptions are satisfied.) Use the 0.10 level of significance, and perform a two-tailed test. Then fill in the table below. (If necessary, consult a list of formulas.) Aa The null hypothesis: H : 0 The alternative hypothesis: H :] O=0 OSO The type of test statistic:…
- mline Assume that, on the average, normal rhesus monkeys spend an mean of 60 minutes dreaming while sleeping at night (thus, u 60 minutes). Time spent dreaming is E typically referred to as REM sleep (Rapid Eye Movement). You are interested in the effects a new dream-enhancing drug has on dreaming since an increase in the time spent dreaming while sleeping is thought to be a good thing in terms of getting a "restful" sleep. You want to pursue testing the drug in humans if there is any evidence that it significantly increases nightly dreaming time in these nonhuman primates. Ten rhesus monkeys are administered the drug in the morning and their dream time (in minutes) is monitored that night. The alternate hypothesis is: the drug will increase time spent dreaming, or the time in REM sleep. You obtain the following times (minutes) each monkey spent dreaming: 52, 69, 74, 60, 67, 65, 69, 55, 63, 68 Set alpha at a- .01, and complete step 4 of the hypothesis testing procedure, what decision…Can someone please help me for part d? ASAP??!!!Which of the following is a NOT Goal based upon research that we can use to build a testable experiment? * Old pennies and new pennies are made of different metals O The density of old pennies vs the density of new pennies The mass of new pennies vs. the mass of old pennies The volume of old pennies vs. the volume of new pennies
- K Are you an impulse shopper? A survey of 800 grocery shoppers indicated that 18% of males and 50% of females make an impulse purchase every time they shop. Assume that the survey consisted of 400 males and 400 females. Complete parts (a) and (b) below. to search a. At the 0.05 level of significance, is there evidence of a difference in the proportion of males and females who make an impulse purchase every time they shop? Let group 1 be the males, and let group 2 be the females. State the null and alternative hypotheses. Choose the correct answer below. OA. Ho: ₁2₂ Н1: П1 <П2 OC. Ho: 1₂ H₁: ₁ = ₂ OE. Ho: ₁₂ H₁: Jy ≤₂ Calculate the test statistic. XSTAT = #10 밥 C L CHEFEND + OB. Ho: ₁₂ H₁: ₁ #₂ OD. Ho: ₁₂ H₁:₁₂ OF. Ho: <₂ H₁: ₁2₂ fo 144 fio 86°FO ii O i QUESTION 15 Determine whether the alternative hypothesis is left-tailed, right-tailed, or two-tailed. HoiH=11 H: H< 11 right-tailed two-tailed left-tailed Click Save and Submit to save and submit. Click Save All Answers to save all answers. JUL 19If a treatment is expected to decrease scores in a population with µ= 30, then the alternative hypothesis is µ ≤ 30. True or false?
