A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have children. To test this claim against the alternative that the actual proportion of doctors who recommend...

A survey claims that 9 out of 10 doctors (i.e., 90%) recommend brand Z for their patients who have children. To test this claim against the alternative that the actual proportion of doctors who recommend...

The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature, μ, of 48°F, ideal for a certain type of German pilsner. The owner...

Determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution, Student t distribution or neither. Claim: μ > 23.8 Sample data: n = 24, = 27.1,...

A regression analysis provided information about a regression line that can be used for predicting sunshine values from rainfall values using the data from 25 months in the sample. The student now...

Find the probability and interpret the results. If convenient, use technology to find the probability. The population mean annual salary for environmental compliance specialists is about $66,000....

I have to enter data into spss that is already given to me the study description is bellow. i would like to know three things; 1 is this a one-way or two-way anova? 2. is it repeated or independent...

40% of students are in class 10 are asked for an anonymous response. What is the probability that exactly 4 employees will be in favor of union representation?

If female blood pressure is normally distributed with a mean of 114 and standard deviation of 19.8, find p12 and p77

When a large number of a particular seed is planted, it is known that 70% of the seeds will germinate. In addition, the germination of one seed is independent of the germination of any other seed...

The incubation time of Rhode Island Red chicks is normally distrubuted with a mean of 23 days and standard deviation of approximately 2 days. If 1000 eggs one being incubated, how many chicks do we...

Assume that women's heights are normally distributed with a mean given by mu equals 62.4 inμ=62.4 in, and a standard deviation given by sigma equals 2.6 inσ=2.6 in. (a) If 1 woman...

please explain to me how to solve this problem: Two cards are selected in sequence from a standard deck of 52 playing cards. Find the probability that the second card is a queen,...

Let X be the score when a cube with faces 1 through 6 is rolled. You are given that E(X)= 3.5 and SD(X) =1.708. A cube with faces 1 thru 6 is rolled 50 times. Which of the following most...

it is a probability question. I need help

Project was to roll 2 dice 5 times and record sums and then repeat this 14 times and then find averages of each row so there is 15 averages.

In a set of 95 ACT? scores, where the mean is 25 and the standard deviation is 6.08?, (a) how many scores are expected to be lower than 18.92 (one standard deviation...

I need to know this.

The hypothenuse, X, of an isosceles right triangle is a uniform random variable on 0, 1]. Calculate the expected value and the variance of the area of the triangle.

A film developer claims that the main number of pictures developed for camera with 27 exposures is less than 25. if a hypothesis test is performed how should you interpret a decision that were (a)...

passing through the intersection of blossom hill road and the Altadena expressway varies from 14 to 35 mph is uniformly distributed. None of the cars travel over 35 mph through the intersection. μ=...