Q. Mrs. Trahan samples her class by selecting 5 girls and called? Select one: O a. random O b. systematic O c. cluster O d. Startified

Use the counting principal to determine the number of elements in the sample space. The possible ways to complete a true/false examination consisting of 29 questions

emaining) Last year, 41% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicates that 35% planned to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 50 business owners. a. How many business owners in the survey planned to provide a holiday gift to their employees this year? Round your answer to the nearest whole number. 18 b. Suppose the business owners in the sample do as they plan. Conduct a hypothesis test that can be used to determine whether the proportion of business owners providing holiday gifts had decreased from last year. State the hypotheses. Но : P> 0.41 0.41 Compute the test statistic and p-value. z-value -0.86 (to 2 decimals) p-value 0.1949 (to 4 decimals) c. Using a 0.02 level of significance, would you conclude that the proportion of business owners providing gifts decreased? Do not reject Họ. We cannot conclude that the proportion of business owners providing…

Use the counting principle to determine the number of elements in the sample space. Two digits are selected without replacement and with replacement from the digits 2,3,4 5 and 6.

An Internet banking system uses passwords that are six characters, and each character are one of the 26 letters (a – z) or 10 digits (0 – 9). The first character must be a letter. The passwords are not case-sensitive. Determine the proportion of passwords that begins with a vowel or ends with an odd number.

Find the following probabilities. (Round your answers to four decimal places.) (a)    p(0 < z < 1.62)(b)    p(1.30 < z < 1.85)(c)    p(−0.38 < z < 1.59)(d)    p(z < −1.92)(e)    p(−1.33 < z < −0.89)(f)    p(z < 1.28)