• Q : Replacement from urn....
    Basic Statistics :

    Suppose that you're drawing two balls without replacement from urn which haves 13 green balls,10 blue balls, and 5 red balls. Compute the probability which you will draw a green ball and a blue ball

  • Q : Cards from standard deck....
    Basic Statistics :

    Assume that you're dealt head of 4 cards from standard deck of 52 playing cards. Compute the probability that you're dealt no more than 2 hearts? Determine the probability that you're dealt no clubs

  • Q : Confidence interval using the repeated-measures t statistic....
    Basic Statistics :

    What value is estimated with confidence interval using the repeated-measures t statistic?

  • Q : Determine the probability that you get at least tails....
    Basic Statistics :

    Assume that unfair coin comes up heads 52.7% of the time. The coin is flipped total of 17 times. Determine the probability that you get at least 10 tails? Determine the probability that you get at m

  • Q : Find out the probability....
    Basic Statistics :

    A container has 23 marbles, 8 are red and 15 are green. Find out the probability that if 4 marbles are chosen from container, at least 2 will be green.

  • Q : Determine the value of the sample mean....
    Basic Statistics :

    For repeated-measures study comparing two treatment situations, a researcher obtains Cohen's d = 0.50 for sample of n = 4 scores with variance of s2 = 16. Determine the value of the sample mean?

  • Q : Mean and standard deviation and standard deviation....
    Basic Statistics :

    If x is normally distributed with mean and standard deviation and standard deviation = 4 and given that the probability that x is less than 32 is 0.0228, find the mean.

  • Q : Manufacturer of chocolate candies....
    Basic Statistics :

    A manufacturer of chocolate candies employs machines to package candies as they move along filling line. Although the packages are labeled as 8 ounces, the company desires the packages to have a mea

  • Q : Recent study of feline high-rise syndrome....
    Basic Statistics :

    A more recent study of Feline High-Rise Syndrome (FHRS) included data on the month in which each of 119 cats fell ( Vnuk et al. 2004) The data are in the accompanying table. Can we infer that the ra

  • Q : Confidence interval for the population mean....
    Basic Statistics :

    If the sample size is held constant, which of the following will produce widest 90% confidence interval for the population mean difference for a repeated-measures study?

  • Q : Possibilities is a serious concern....
    Basic Statistics :

    Which of the following possibilities is a serious concern with a repeated-measures study?

  • Q : Significant difference between treatments....
    Basic Statistics :

    Which of the following confidence intervals also points out a significant difference between treatments with a = .05?

  • Q : Question regarding individual at random....
    Basic Statistics :

    To keep up with current events, 30% of the people read the paper, 40% watch the news upon TV, and 10% do both. If you choose an individual at random, determine the probability that he or she will re

  • Q : Feed regarding population of catfish....
    Basic Statistics :

    Biff and Dilara were arguing over a news feed regarding population of catfish (Silarus gianis) in France which had figured out how to hunt feral pigeons. A submerged catfish lying in wait would rush

  • Q : Independent-measures study produces sample means....
    Basic Statistics :

    An independent-measures study produces sample means of M1 = 35 and M2 = 31 and a pooled variance of 25. For this study, Cohen's d = ____.

  • Q : Independent-measures study produces sample means....
    Basic Statistics :

    An independent-measures study produces sample means of M1 = 35 and M2 = 31 and a pooled variance of 25. For this study, Cohen's d = ____.

  • Q : Independent-measures t statistic....
    Basic Statistics :

    For independent-measures t statistic, the estimated standard error measures how much difference is reasonable to expect between two sample means if the null hypothesis is true.

  • Q : Independent-measures research study....
    Basic Statistics :

    For an independent-measures research study, the data show an 8-point difference between the two treatment means and a pooled variance of 4. Given this information, what is the value of Cohen's d?

  • Q : Homogeneity of variance assumption states....
    Basic Statistics :

    The homogeneity of variance assumption states that the two population variances are equal.

  • Q : Independent-measures research....
    Basic Statistics :

    The data from independent-measures research study produce a sample mean difference of 6 points and an estimated standard error of 2 points. If there are n = 8 scores in each sample, then the value f

  • Q : Confidence interval for the proportion of surgeries....
    Basic Statistics :

    Compute a 95% confidence interval for the proportion of surgeries follrowed by surgical site infections in the U.K.? Assume that the data are a random sample.

  • Q : Probability of getting a number less....
    Basic Statistics :

    If a die is rolled one time, what is the probability of getting a number less than 5?

  • Q : Biographies that he would like to read....
    Basic Statistics :

    Joe goes to the library and finds 10 novels, 6 history books, and 7 biographies that he would like to read. How many different selections can he make if he selects one of each kind?

  • Q : Weights of individual bags....
    Basic Statistics :

    Supposing the weights of individual bags are independent, determine the probability that 11 or fewer bags weigh less than 50 pounds in a sample of size 17? Provide your answer to four decimal places

  • Q : Determine the probability that the fifth purchase....
    Basic Statistics :

    Determine the probability that the fifth purchase will take place between 2.73 minutes and 3.64 minutes after the site opens? Provide your answer to four decimal places.

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