1. Two persons, A and B, are to play a serious of independent games, with A’s winning probability in each game = p and B’s winning probability = q = 1 – p. The game ends when the total number of winnings...

It’s a math question so that I can graduate and tbh I basically never was g in school and this is on an assignment that if I do well on it I can graduate and get into the automotive trade like I had...

Suppose that insurance companies did a survey. They randomly surveyed 430 drivers and found that 330 claimed they always buckle up. We are interested in the population proportion of drivers who claim...

According to a recent study, 9.3% of high school dropouts are 16- to 17-year-olds. In addition, 6.4% of high school dropouts are white 16- to 17-year-olds. What is the probability that a randomly...

I simply cannot figure out this problem! I thought that the level of significance would always be given to me. Usually, the problem says 5% significance, or whatever.    An urgent...

The authors of the paper "Fudging the Numbers: Distributing Chocolate Influences Student Evaluations of an Undergraduate Course"† carried out a study to see if events unrelated to an undergraduate...

The length of time students needed in order to complete a statisics test followed a distribution that was approximately normal. The mean was 74 minutes. The standard deviation was 8 minutes.

For goodness of fit: 1. A normally-distributed population is a common assumption for most statistical tests. Using z-scores, the proportion of scores between given values is known, and these proportions...

Samples of size n produced sample proportions P^(hat) as shown. In each case decided whether or not the sample is large enough to assume that the sample proportion p(hat) is normally distributed. a...

Suppose Y ∼ N(μ=0, σ). Find σ so that the normal population contains 90% of its probability between -1 and 1. Please round your answer to two decimals. . [Hint: The normal distribution...

Statistics..NEED HELP FAST/ ASAP. Thankyou   Find the area under standard normal curve A. To the right of z=-.65 B. Between -z=-2.33 and z=+2.33   Give the formula for...

A study was conducted to evaluate the effect of calcium supplement on preventing postmenopausal osteoporosis. Among 300 women aged 60 and above who took calcium supplements regularly, 15% had postmenopausal...

A? half-century ago, the mean height of women in a particular country in their 20s was 63.8 inches. Assume that the heights of? today's women in their 20s are approximately normally distributed with...

The number of calls coming to a call center follows a Poison distribution. On average 90 calls arrive every hour on Mondays between 10 am and 11 am. The probability that exactly three calls will arrive...