Assuming that x is a binomial random variable with n = 10 and p = 0.25, find the probability, p for each of the following values of x. (a) x = 5. (give the answer to four decimal places.) p(x = 5) = (b) x = 2. (give the answer to four decimal places.) p(x = 2) = (c) x = 1. (give the answer to four decimal places.) p(x = 1) = (d) x = 9. (give the answer to seven decimal places.) p(x = 9) =

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?