Compute the p-value for the following hypothesis test. Round to three decimal places. Ho: p = 0.45 HA:P < 0.45 Ztest = -2.35

Q: Method A: M1= 54, SS1= 400, n1= 15  Method B: M2=40, SS2= 440, n2=15 Using alpha=0.05 should the…

A: It is given that M1=54, SS1=400, n1=15. M2=40, SS2=440, n2=15

Q: Fourteen people apply for a teaching position in mathematics at a local college. Eight have a PhD…

A: M=8, N=14, n=5 X~HG(5,14,8)

Q: X is a normally distributed random variable with mean 25 and standard deviation of 5. For n= 16,…

A: Answer: From the given data, X follows Normal distribution, mean (μ) = 25 Standard deviation (σ) = 5…

Q: If A and B are two events with P(A) = 0.51, P(B) = 0.23 and P( A and B) = 0.13 What is P(B | A)?

A: A and B are two events with P(A) = 0.51, P(B) = 0.23 and P( A and B) = 0.13

Q: We are interested in testing whether the proportion of American adults who mostly drink diet soda…

A: X=485, n=2027, level of significance ɑ=0.05 ,p=25%

Q: The following is the scores of an exam: 40 50 50 52 58 58 62 65 68 72 79 80 80 87 90 96 98 Calculate…

A: Data X: 40,50,50,52,58,58,62,65,68,72,79,80,80,87,90,96,98

Q: minutes. A cab driver Hng a Friday afternoon time period and obtains these statistics: n=14, x= 17.8…

A: Sample size n =14 Standard deviation =12.7

Q: Find the sample size of American adults you would need to predict the results of an election with a…

A: Given thatMargin of error (E) = 0.02 Confidence level (c) = 90% = 0.90Significance level (α) = 1 -…

Q: Find the p-value. State your conclusion about the null hypothesis. State your conclusion about the…

A: How many cars have you had so far in your lifetime? 0,1,1,1,1,2,2,2,2,3,3,3,3,3,4,4,5,6,6,7,10…

Q: The defect test results of the regression model are reported as follows: Modified Wald test for…

A: Based on the information provided, it appears that the regression model is exhibiting groupwise…

Q: Attitudes toward interracial relationships have changed dramatically since the Supreme Court ruled…

A: A. This is a difference test because the researcher is interested in comparing whether acceptability…

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: Sample 1 (people over age of 55): n1=297x1=80 Sample 2 (people under the age of 25): n2=311x2=14…

Q: f A and B are independent events with P(A')= 0.66, P(B) = 0.36 Calculate P(A and B)? Round to 2…

A: given, P(A')=0.66 and P(B)=0.36 then, P(A)=1-P(A') P(A)=1-0.66 P(A)=0.34

Q: X is a binomially distributed random variable with n= 10 and p= 0.25 Find the mean and variance…

A: Answer: From the given data, X follows binomial distribution, sample size (n) = 10 P = 0.25  and q =…

Q: K Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the…

A: Let μ1 and μ2 be the two population means weights of the content of the cans of diet soda and the…

Q: Draw a scatter diagram for the data. Plot the least-squares line on your scatter diagram.

A: Given: Let x be the age of a bighorn sheep (in years), and let y be the mortality rate (percent that…

Q: A sample of 28 adults attending a country fair determined that the mean age was 33,given that the…

A:

Q: A study on the effects of color on easing test anxiety compared anxiety test scores of participants…

A: Given that: Yellow Paper Green Paper 17 20 19 26 28 17 18 24 20 25 21 26 19 21 23…

Q: a) What is the level of significance? State the null and alternate hypotheses. H0: ? = 13.5; H1: ?…

A: Let μ be the population mean average mileage driven. Given that, Population mean (μ) = 13.5…

Q: A randomized complete block design is carried out, resulting in the statistics shown below. Con…

A: ANOVA is used to test the equality of more than two means. There are two types of Variations, one is…

Q: Given a two-tailed test, α = .05, N = 12 and H0 : ρ ≠ 0, which of these is the correct  rcv? (You…

A: α = .05, N = 12 and H0 : ρ ≠ 0 Since the hypothesis is two-tailed.  We need to find the degree of…

Q: SSx= 220.5, SSY = 180.6, and ∑[(X – Mx) (Y – MY)] = –145.67, r =

A: SSx= 220.5, SSY = 180.6, and ∑[(X – Mx) (Y – MY)] = –145.67, r = ?

Q: Private nonprofit four-year colleges charge, on average, $27,880 per year in tuition and fees. The…

A: Population mean, μ=27880 Population sd, σ=7500

Q: The data in the table is the number of absences for 7 students and their corresponding grade. Number…

A: The variable number of absences is defined as x and the variable grades is defined as y.

Q: Refer to the following scenario. A government official is in charge of allocating social programs…

A: From the provided information, Sample size (n) = 123 From which 21 have an annual income that is…

Q: Hi, I need to calculate the time-series average returns and standard deviations to the size premiums…

A: You must first determine the monthly returns for each category before calculating the time-series…

Q: calcium levels in people are normally distributed with a mean of 9.6 MG and a standard deviation of…

A: X~N( μ , ?)   μ=9.6 , ?=0.3   Z-score =( x - μ )/?

Q: I want to Examples from real life between parametric and nonparametric test to understand.

A: Parametric tests and nonparametric tests are two different types of statistical hypothesis tests…

Q: The life of light bulbs is distributed normally. The standard deviation of the lifetime is 37 hours…

A: Answer: From the given data, mean (μ) = 515 Standard deviation(σ) = 37 X~ Norma distribution(μ,σ)

Q: Suppose in 2011 a survey of 954 workers in the city of Ottawa found that 206 used public transport…

A: From the provided information, 954 workers in the city of Ottawa found that 206 used public…

Q: (a) Let p represent the population proportion of all people with recent charges of drunken driving…

A: For face-to-face sample, x1 = 16 and n1 = 31 For telephone interview sample, x2 = 27 and n = 46 I…

Q: K Since an instant replay system for tennis was introduced at a major tournament, men challenged…

A: We have given thatn1 = 1412 , x1 = 411n2 = 764 , x2 = 227Significance level (α) = 0.01

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: From the given data, Let X represent the number of calls received by an office on morning…

Q: . Linear correlation (Pearson's r): Describes the direction and strength of a relationship between…

A: Here use deforestation of correlation coefficient . Correlation coefficient between independent and…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Solution-: Given: μ=264,σ=36 We wan to find  (a) The distribution of X? (b) P(For a randomly hit fly…

Q: Considering the given data, Find the value of P(X < 6) Round your answer to one decimal…

A: Answer: Given that,   x      4     5     6     7     8 P(x)   0.3  0.2   0.2  0.1   0.2 Total…

Q: Researchers conducted a study to determine whether magnets are effective in treating back pain. The…

A: From the provided information, n1=12x1=0.48s1=0.95n2=12x2=0.43s2=1.16

Q: Onw card is drawn randomly from a standard deck of 52 cards. What is the probability of getting…

A: Answer: From the given data, Total number of cards in a standard deck = 52 number of club cards =13

Q: Discuss the difference between parametric and non-parametric tests. Justify your answer with…

A: Parametric tests are statistical tests that assume a specific distribution of the population from…

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

A: The p is the population proportion of blue candies in color candies The sample proportion p^=0.23…

Q: The accompanying Automobile Options dataset provides data on options ordered together for a…

A: From the given information,  Slower Engine   Faster Engine   Fastest Engine   No Warranty   3…

Q: It is known that rats run a standard maze in an average of 25.4 seconds. A researcher is trying to…

A: Sample size n =43 Sample mean=23.6 Standard deviation =5.1

Q: an of μ 16.187 and a population SD of a = 1.558. you were to randomly choose one male in the U.S.…

A: we have given  μ=16.187 and σ=1.558   a) To find the percentage of the population that begins…

Q: Use a 1% level of significance to test the claim that the distribution of first nonzero digits in…

A: Given that sample size (n) = 275 Non-zero digit Sample frequency (O) Probability according to…

Q: We open 20 bag of M&Ms and find the following number of orange M&Ms. ster 9 10 11 12 13 14 15 16 17…

A: d) To construct the 95% confidence interval estimate for the mean of all orange M&amp;Ms, we can use…

Q: A manufacturing process produces semiconductor chips with a known failure rate of 6.1%. If a random…

A: p=0.061 n=220

Q: Refer to the following scenario. A government official is in charge of allocating social programs…

A: Refer to the following scenario. A govemment official is in charge of allocating social programs…

Q: Determine the minimum sample size required when you want to be 95% confident that the sample mean is…

A: From the provided information, Population standard deviation (σ) = 18.3 Margin of error (E) = 1…

Q: 7. What percent of the sophomores spend more than 60 minutes on homework per night? 8. What is the…

A: From given box plot that represents average minute time per night spent on homework  Min = 0 Q1 =…

Q: interested in improving customer satisfaction rate from the 77% currently claimed. The company…

A: Sample size n =287 Favorable cases x =135 Sample proportion p^=x/n  =135/287 =0.818815331 =0.8188