You are conducting a study to see if the probability of catching the flu this year is significantly less than 0.26. You use a significance level of α=0.10α=0.10.       H0:p=0.26H0:p=0.26       H1:p<0.26H1:p<0.26 You obtain a sample of size n=132n=132 in which there are 21 successes. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =  What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value =  The p-value is..

Q: Suppose you are testing whether the lifetime of 4 different types of lightbulbs. You run 5…

A: From the provided data we have, MSE = 1.75 dft = 4×5 = 20 dfw = 20-4 = 16 k = number of groups = 4…

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A: Given information: x 89 90 91.5 92 92.5 95 95.5 96 93 93.5 94 94 91…

Q: Use a x2-test to test the claim o? = 0.48 at the a = 0.05 significance level using sample statistics…

A: Null hypothesis: The value of the test statistic is given and calculated as follows:

Q: The first answer is B. What is the test statistic

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A:

Q: You are conducting a study to see if the probability of a true negative on a test for a certain…

A: Given: n= 295 ,x= 20 p= 0.12 ,significance level(∝)= 0.1 p̂= 20 / 295 =0.0677966102

Q: Suppose you are using a completely randomized design to study some phenomenon. There are three…

A: It is given that the number of treatment levels is 3 and a total number of people in the study 36.

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A: Given that,possible chances (x)=317sample size(n)=356success rate ( p )= x/n = 0.8904success…

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A:

Q: students are tested again at the end of the year. Their test scores revealed an average improvement…

A: students are tested again at the end of the year. Their test scores revealed an average improvement…

Q: n a random sample of​ males, it was found that 25 write with their left hands and 219 do not. In a…

A: given data, male:25-write with left hands219- do not 244-   total malex= no. of left…

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A: Denote μ as the true mean amount to which the machine fills the bags at the 430 gram setting.

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Q: When the difference between the means of two normal populations is checked using two independent…

A: The test is two independent samples t-test. Here, the population variances are equal. The sizes of…

Q: What is the p-value if you are doing a two-tailed test?

A: We have given that  The z-statistic is, z = 1.15

Q: You wish to test the following daim (Ha) at a significance level of a = 0.001. H.:P1 = P2 Ha:P1 + P2…

A: Givenn1=65+551=616p1^=xn=65616=0.106n2=13+302=315p2^=xn=13315=0.041p=x1+x2n1+n2=65+13616+315=0.084α=…

Q: In a single sample t-test, if the standard error of the mean becomes larger, the risk of committing…

A:

Q: You conduct a one-way ANOVA with 7 groups (or populations). At 0.01 significance level, you find at…

A: Given:

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Q: The average shelf life of a beverage was sought to be examined. Shelf lives (days) for 5 randomly…

A: For the given data we find  Mean= summation Xi/n  Here n= 5 = (85+90+95+100+105)/5 = 375/5  X bar =…

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A: The null and alternative hypothesis isH0:p=0.82H1:p0.82significance level()=0.05sample…

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Q: not sigmal square is equal to sigma 2 square

A: From Given Information  To test: H0:σ12=σ22VersusH1:σ12≠σ22

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A: Part 2 The chi-square test statistic and p-value can be calculated using Minitab as: Step 1: Open…

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Q: You compute a two-sample z statistic and it comes out to equal 1.45. What is the p-value if you are…

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A: The given sample size for athletic men is 50, sample mean is 4.3, sample standard deviation is 2.1,…

Q: A sociologist is studying the age of the population in Blue Valley. Ten years ago, the population…

A: Age  Observed value under 20 29 20-35 25 36-50 65 51-65 67 over 65 24

Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…

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Q: A SRS of 18 statistics examinations was taken from a large normal population.  The average score in…

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Q: An independent-measures study produced sample mean of M1 = 20 and M2 = 17.  If both samples have n=…

A: Given M1=20, M2=17 and Cohen's d=50.   It is known that      where  sp2 is the pooled variance.

Q: You wish to test the following daim (Ha) at a significance level of a = 0.001. H.:P1 P2 You obtain…

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Q: CONFLICT RESOLUTION 4 of 4 What is your statistical decision? The Center for the Study of Violence…

A: Let μd be the mean difference between before participating and after participating. The hypothesis…

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Q: Determine the mean and variance for a rials n and the given success probabili n Mean: Jariance:

A: we need to determine mean and variance for a binomial experiment here n = 20 p = 0.6 q =1-p    =1 -…

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Q: Magnet Sham Researchers conducted a study to determine whether magnets can affect back pain. The…

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Q: You are conducting a study to see if the proportion of women over 40 who regularly have mammograms…

A: Given that  Hypothesized Population Proportion (p_0)(p) = 0.840.84 Favorable Cases (X)(X) =…

Q: you compute a two-sample z statistic and it comes out to equal 1.6. What is the p-value if you are…

A: Given Information: The two-sample z statistic is given as 1.6. The test is two tailed

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Q: Use a 0.01 significance level to test the claim that the two samples of Yttrium concentrations (in…

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