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Convert the binary value 100101 to decimal without using a calculator. Show your work
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a random sample is selected from a normal populationwith a mean of 50 and a standard deviation of 12. after a treatment is administered to the individuals in the sample, the sample mean is found to be 55. if the sample consits of 16 scores, is the sample mean sufficient to conclude that the...
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A confidence interval was used to estimate the proportion of graduate students that are females. A random sample of 72 ... A random sample of 72 graduate students generated the following 90% confidence interval: (0.438, 0.642). Based on the interval above, is the population proportion of females...
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In a study, 43% of adults questioned reported that their health was excellent. A researcher wishes to study the health of people living close to a nuclear power plant. Among 13 adults randomly selected from this area, only 3 reported that their health was excellent. Find the probability that when...
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explain how the base rate of any particular oucome is calculated and why is the base rate the best prdiction of the future likelihood of that outcome?
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1. State College is evaluating a new English composition course for freshmen. A random sample of n = 25 freshmen is obtained and the students are placed in the course during their first semester. One year later, a writing sample is obtained for each freshman and the writing samples are graded...
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"Assignment: Answer the following questions: 1. A researcher would like to examine the effects of humidity on eating behavior. It is known that laboratory rats normally eat an average of =21 grams of food each day. The researcher selects a random sample of n=16 rats and places them in...
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If you toss a coin and roll a 12 sided die numbered 1-12, find P(tails and a 2)
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1. Diseases I and II are prevalent among people in a certain population. It is assumed that 10% of the population will contract disease I sometime during their lifetime, 15% will contract disease II eventually, and 3% will contract both diseases. (a) Find the probability that a randomly chosen...
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The manufacturer of a new chemical fertilizer guarantees that, with the aid of the fertilizer, 70% of the seeds planted germinate. If we believe the manufacturer's assertion, what is the probability that fewer than 7 of the 8 seeds that were planted will germinate? Round your answer to four...
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- 1. A school administrator wonders if students whose first language is not English score differently on the math portion of the sat exam than students whose first language is English. The mean SAT math score of students whose first language is english is 516 on the basis of data obtained from the college board. A simple random sample of 20 students whose first language is not English result in a sample mean SAT math score of 522. SAT math score are normally distributed with a population standard deviation of 114. Why is it necessary for SAT math scores to be normally distributed to test the hypothesis?
- 2. What are the steps espoused by Applied Statistics in Business and Economics for formal hypothesis testing? Why is the sequence important?
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