Evaluate Ez + for z' =0.55,0,0.92,02 -0.72, n = 15, and ny 59. mo 12 E...
Find the Z-scores that separate the middle 59% of the distribution from the area in the tails of the standard normal distribution.The Z-scores are _______ (Use a comma to separate answers as needed. Round to two decimal places as needed)
Evaluate E = for t* = - 1.402, $x = 2.774, and n=8. (Round to three decimal places as needed.)
e Remaining! 00:59:35 Sut This Question: 1 pt 41 9 of 10 (0 complete) This Test: 15 pts possi A sports store purchased tennis racquets for 575 22 less 37% for purchasing more than 100 items, and a further 25% was reduced for purchasing the racquets in October. The racquets were sold to customers for $56.75. (a) What is the cost of each racquet? (b) What is the markup as a percent of cost? (c) What is the markup as...
1.- A random variable follows a binomial distribution with a probability of success equal to 0.72. For a sample size of n=12, find the values below. a. the probability of exactly 5 successes b. the probability of 6 or more successes c. the probability of exactly 11 successes d. the expected value of the random variable a. The probability of exactly 5 successes is (Round to three decimal places as needed.) b. The probability of 6 or more successes is...
Evaluate each problem using a calculator. Show all steps. Round all answers to the nearest hundredth. Next, write the expression that would be used in Excel. Calculate the minimum sample size needed for a study when p= 0.62,z, = 1.95996, and 3) 22 E 0,05 Excel Function: 4) Evaluate the formula for margin of error for population proportion, when z 1.95996, p = 0.72, and n=300. Round the answer to the hundredths. Excel Function
Evaluate the formula z equals Start Fraction x overbar minus mu Over Start Fraction sigma Over Start Root n End Root End Fraction End Fraction z= x−μ σ n when mu μ equals = 118, n = 22, x overbar x equals = 123, and sigma σ equals = 2 2. z = nothing (Round to three decimal places as needed.)
very stuck pls help!
For each of the following situations, find the critical value(s) for z or t. a) Ho: u = 110 vs. Ha: u# 110 at a = 0.05; n = 51 b) Ho: p = 0.05 vs. Ha:p>0.05 at a = 0.05 c) Ho: p = 0.3 vs. Ha:p*0.3 at a = 0.10 d) Ho: p = 0.5 vs. Ha:p<0.5 at a = 0.10; n = 550 e) Ho: p = 0.9 vs. Ha: p<0.9 at a...
Evaluate the following definite integral to two decimal places. 25 20.061 0.04(25 – t)dt e 0 25 s 0 061 0.04(25 - dt = 1 (Round to two decimal places as needed.)
Consider a sample with a mean equal to 38 and a standard deviation equal to 12. Calculate the z-scores for the following values. a) 48 b) 62 c) 32 d) 12 a) The z-score of 48 is nothing. (Round to two decimal places as needed.) b) The z-score of 62 is nothing. (Round to two decimal places as needed.) c) The z-score of 32 is nothing. (Round to two decimal places as needed.) d) The z-score of 12 is
Consider a sample with a mean equal to 40 and a standard deviation equal to 12. Calculate the z-scores for the following values. a) 53 b) 68 c) 33 d) 9 (Round to two decimal places as needed.) a) The z-score of 53 is b) The z-score of 68 is (Round to two decimal places as needed.) c) The z-score of 33 is . (Round to two decimal places as needed.) (Round to two decimal places as needed.) d) The...