Claim that : P > 20 % , the test statistic is  z = 2.17 . Also, use a 0.04 significance level and state the conclusion about the null hypothesis. A) Find the null hypothesis and alternative hypothesis in a symbolic form.  B) Use Table A-2 and TI 84 to find P-value C) Use Table A-2 and TI 84 find the critical value  D) State the conclusion about reject H0 or fail to reject H0.

Q: Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company c…

A: given data, n=100blue candies of blue candies =p claim:p=0.21p^=0.23 α=0.05

Q: The numbers of online applications from simple random samples of college applications for 2003 and…

A: Given : n1 = 368 x1 =129 n2 = 765 x2 =451 p^1 = x1n1 p^1 = 129368 p^1 = 0.3505 p^2 = x2n2 p^2 =…

Q: Direction: Perform hypothesis testing. Show all the steps and solutions. Note: Excel / Stat…

A: Given  Level of significance=0.01, population mean μ=4

Q: Suppose that the P‐value in a hypothesis test is 0.08. If the significance level for the test is…

A: Decision rule : Reject H0 if P-value  <  α

Q: ??

A: Step 1: Determine the null and alternative hypothesis for this testThe alternative hypothesis can…

Q: The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the…

A: p-value = 0.0966

Q: Assume significance level of a=-.05: In a recent study of a random sample of 113 people, 92 reported…

A: The following information has been provided: n=113x=92 p=0.29

Q: 16% of all college students volunteer their time. Is the percentage of college students who are v…

A: The claim is that the % of college students who are volunteers larger for students receiving…

Q: Use a = 0.05 to test for any significant differences. %3D State the null and alternative hypotheses.…

A: The null hypothesis is denoted by Ho and alternative hypothesis is denoted by Ha.

Q: University students were asked if they agreed that their education was worth the cost. One variable…

A: Given that: X Y 28 52 29 58 30 61 37 54 45 53 47 61 52 54 54 62 57 69 60 58…

Q: Which of the following statements is true ?

A: The objective of the question is to determine the correct decision regarding the null hypothesis…

Q: Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b)…

A: p=51%, p value=0.1687, level of significance ɑ=0.05

Q: 10.27 Interpret the results about the hypothesis testing of tw proportions: a. Comment if the null…

A: We have to interpret p value .

Q: Test the claim that the mean GPA of night students is larger than 2.7 at the 0.01 significance…

A: Given data :  n =25 x̄ = 2.7 s= 0.05 μ= 2.7 α= 0.01

Q: Test the claim that the proportion of people who own cats is smaller than 30% at the 0.005…

A: Givenn=100p^=0.21p=0.3α=0.005

Q: Assume a significance level of α=0.05 and use the given information to complete parts​ (a) and​ (b)…

A: From the provided information, Level of significance (α) = 0.05 The hypotheses can be constructed…

Q: A new assembly-line procedure to increase production has been suggested by Mr. Mump. To test whether…

A:

Q: For a lower-tailed test, the test statistic is found to be 0. The p-value for this test is 0.5 0.025…

A:

Q: ind the nypolnesis les with the standardized test statistic z. Decide whether to reject HO for the…

A:

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A:

Q: It is recommended that adults get 8 hours of sleep each night. A researcher hypothesized college…

A: We want to find the null hypothesis

Q: A social psychologist is interested in finding out whether people who self-identify as shy are more…

A: The question is about categorical data analysis Given :   To find : 1 ) Exp. frequency for shy /…

Q: State your decision to the significance test in terms of the null hypothesis.According to a recent…

A: The given test claims that the percentage of people in New York who would vote for the incumbent…

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: Only 12% of registered voters voted in the last election. Will voter participation decline for the…

A: (a) For this study, we would use one sample z-proportion test. (b)

Q: A commentator believes less than 35% of all adults believe they are ineffective

A: Given that An opinion poll asked a random sample of adults whether they believe flu shots are…

Q: Suppose the null hypothesis, Ho, is: the mean age of the horses on a ranch is 6 years. What is the…

A: given null hypothesis is mean age of horses on a ranch is 6 years. Type-II error is when we fail to…

Q: (a) Do you reject or fail to reject Ho at the 0.01 level of significance? O A. Reject Ho because the…

A:

Q: Are blonde female college students less likely to have boyfriends than brunette female college…

A: As per guideline expert have to answer first question three subparts only dear student please upload…

Q: In soccer, serious fouls result in a penalty kick with one kicker and one defending goalkeeper. The…

A:

Q: The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject H, when the…

A: Solution: From the given information, the P-value is 0.1162.

Q: A store owner wanted to determine if more than 5% of customers made a purchase after he sent out a…

A: We have given the store owner wanted to determine if more than 5% of customers made a purchase after…

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is…

A:

Q: Determine the P-value of the test statistic. P-value = (Round to four decimal places as needed.)

A:

Q: Among n= 300 tested subjects, results from x= 36 subjects were wrong. Use a α= 0.05 significance…

A: Note: Since you have posted questions with multiple subparts we will solve the first three questions…

Q: In soccer, serious fouls result in a penalty kick with one kicker and one defending goalkeeper. The…

A: option D is correct

Q: A sample of 157 men was taken and it was found that 41 owned cats. A sample of 153 women was taken…

A: Given that, A sample of 157 men was taken and it was found that 41 owned cats. A sample of 153 women…

Q: Is there sufficient evidence at the 0.05 level of significance that the average repair time is less…

A: Let μ denotes the population mean repair time. The claim of the test is that the average repair time…

Q: Use the technology display, which results from the head injury measurements from car crash dummies…

A: According to given hypothesis, The testing is based on intersection of two factors. From the given…

Q: Use the technology display, which results from the head injury measurements from car crash dummies…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: The recidivism rate for convicted sex offenders is 11%. A warden suspects that this percent is…

A:

Q: According to the Minnesota Baccalaureate Psychomotor Skills Test (2008) your patient has…

A: For the provided result, considering μ as the average psychomotor skills of all the patients and c…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.