-Find the correct null hypothesis and for each correct alternative hypothesis 5. You want to test the fairness of a single die, so you concentrate on the proportion of 1s that come up. Write down the null and alternative hypotheses.

Q: State the null and alternate hypothesis: For one experiment, 175 trials produced 88 successes. In a…

A: Given: n1=175x1=88n2=233x2=150 The significance level is taken as α=0.05.

Q: to predict the result of the referendum, by testing the hypotheses H0: p = 0.43 against H1: p <…

A: Given data number of success , x= 950.0 sample size, n = 2150 population…

Q: If, in a sample of n = 16 selected from a normal population, X = 56 and S = 12, what is the value of…

A:

Q: A politician believes that 60% of constituents are in favor of a particular issue. She takes a…

A: Null hypothesis:A statistical hypothesis which is assumed and whose validity is tested for possible…

Q: (b) The proportion of adults living in a small town who are college graduates is estimated to = 0.6.…

A:

Q: In the case of hypothesis testing of one sample (for large samples): If α value is greater than the…

A: In the case of hypothesis testing of one sample (for large samples) Here use basic concept of…

Q: In a sample of 58 men, 46 said that they had less leisure time today than they had 10 years ago. In…

A:

Q: Suppose we suspect a coin is not fair — we suspect that it has larger chance of getting tails than…

A: a. If a coin is fair, the probability of getting a head and that of getting a tail are the same when…

Q: -Find the correct null hypothesis and for each correct alternative hypothesis 6. You want to test…

A: Given : Claim : A higher percentage of males who are Democrat than females who are Democrat.

Q: The average American consumes 9.8 liters of alcohol per year. Does the average college student…

A: Given that, μ= 9.8

Q: ​b) A pharmaceutical company wonders if its new drug has a cure rate different from the 58​% rate…

A: Here we are conducting a hypothesis test to check if the cure rate of new drug is different from the…

Q: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample…

A: Here critical value= +-1.96 Test statistics z = 2.20

Q: Suppose we want to test the null hypothesis H0 : p = 0.60 against the alternative hypothesis Ha : p…

A: Given that  Null hypothesis H0: P=0.60 Alternative hypothesis H1: P&lt;0.60   [ Left tailed test ]…

Q: 3. In the case of hypothesis testing of one sample (for large samples): If α value is greater than…

A: Solution

Q: In the criminal justice system, a defendant is innocent until proven guilty. Therefore, the null…

A: a. Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…

Q: A botanist believes that pumpkin patches must be treated with a fungicide on average 8 about whether…

A: From the given information   It is clear that this is left tailed since fewer treatment is used

Q: -Find the correct null hypothesis and for each correct alternative hypothesis 1. Suppose a pollster…

A:

Q: If we test the hypotheses below with 0.05 level of significance and n=10, s²=6 He: o2=5

A: Given information: n=10 s2=6 σ2=5

Q: Based on this information, which one of the following statements is correct?                If a…

A: We have given that  Claim: The true population proportion of adults who favour the colour purple is…

Q: An inspector checks large truck loads of potatoes to determine the proportion ? in the shipment with…

A: We want to find test statistics

Q: L12Q2.The average scores of students in the final exam in two neighboring colleges are equal. If a…

A: Testing of hypothesis is a rule which, when the sample values have been obtained, leads to a…

Q: |-Find the correct null hypothesis and for each correct alternative hypothesis 2. Suppose a pizza…

A: Solution

Q: The currently used medicine is successful for 26% of patients. A new experimental medication is…

A: sample size(n)=500no.of patients successful for new experimental medication (X)=140sample proportion…

Q: A random sample of 100 students at a high school was asked whether they would ask their father or…

A: There are two independent samples which are follows normal distribution. The number of successes,…

Q: 4. Suppose a political candidate claims the percentage of uninsured drivers is 30 percent, but you…

A: Rule of hypothesis : Null Hypothesis contain 'less than or equal to ( &lt;= )' , 'greater than or…

Q: The Statistics Games are played by a large number of students across the county. Last year, 32% of…

A: Givensample size(n)=250p^=0.38

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: From the provided information, The proportion of high school seniors who felt that “getting rich”…

Q: 8. Suppose you test the hypothesis that Intervention A is more effective than Intervention B in…

A: The claim is intervention A is more effective than intervention B in preventing high school dropout.

Q: If a hypothesis is rejected at the 1% level of significance, it will always be rejected at the 5%…

A: If a null hypothesis is rejected at 1% level of significance then we have find out what will happen…

Q: About 778000 male and 886000 female high school students took the SAT in 2012. We suspect the…

A: Hi, we are supposed to answer three subparts at a time. Since you have not mentioned which subpart…

Q: -Find the correct null hypothesis and for each correct alternative hypothesis 3. Suppose you hear a…

A: The claim is that the average is higher than 78.

Q: 8. Refer to the Bayer Aspirin problem: How would the alternate hypothesis be written symbolically if…

A:

Q: has recently been claimed that 25% of adults consider spring to be their favorite season of the…

A: Solution

Q: 2. In the recent Census, three percent of the U.S. population reported being of two or more races.…

A:

Q: Two teaching assistants, Camille and Julianne, wanted to investigate the the average number of hours…

A:

Q: -Find the correct null hypothesis and for each correct alternative hypothesis 7. Suppose you hear a…

A: Solution

Q: A study done on a marriage counseling course showed that the proportion of couples for which the…

A: Claim:The proportion of couples for which the communicationprogram can prevent divorce is less than…

Q: A researchers claims 45% of couples have children. They conduct a hypothesis test and reject the…

A: Type I Error : Reject H0 when H0 is true.

Q: It has recently been claimed that 25% of adults consider spring to be their favorite season of the…

A: From the provided information, Population proportion (p) = 0.25 A researcher is skeptical of this…

Q: A decade old study found that the proportion of high school seniors who felt that getting rich was…

A: Solution: The hypothesis could be classified into two types  1) Null hypothesis   and 2) Alternative…

Q: In hypothesis testing, when should we use alpha and beta?

A: In Hypothesis testing alpha ɑ = It is a type 1 error, i.e. Rejecting the null hypothesis when it is…

Q: 2. What is your null hypothesis? (in words)

A: Given that  Here  Number of participant =7

Q: 3. A sample of n=25 individuals is selected from a population with μ=80, and a treatment is…

A:

Q: Suppose we suspect a coin is not fair — we suspect that it has larger chance of getting tails than…

A: Consider that p is the true proportion of occurrence of head.

Q: (d) If this hypothesis test is performed at the 1% level of significance, do the researchers reject…

A: There are two common error that exist in hypothesis test, they are type 1 and type 2 error. Where…

Q: 19. An internet provider claims 80% of user have netflix on their tablets. You doubt this claim,…

A: A. The following null and alternative hypotheses need to be tested: Ho: p = 0.80Ho:p=0.80 Ha: p…

Q: A December 2017 Gallup Poll reported that 43% of Americans use the internet for an hour or more each…

A: Given : Let X : No. of students use an internet for an hour or more each day Sample size (n) =60 X =…

Q: Which is the alternative hypothesis?

A: Let the independent variable x denote the persons age Let the dependent variable y denote the number…

Q: In a hypothesis test with hypotheses H:p 0.58 a random sample of size 900 produced a sample…

A: H0 : p ≤0.58 H1 : p &gt; 0.58 Level of significance = 0.025 Given that, p = 0.06 n = 900 x = n*p =…

Q: is there a difference in the proportions? What is your decision? Accept the alternative…

A: Given n1=80p^1=0.55n2=100p^2=0.48α=0.10