Find the indicated probability.

1)If you are taking a test in which there are 2 questions. The first is a multiple choice with 5 possible answers and the second is a true/false question. What is the probability that you will get the first question right or the second question right?

Determine if the outcome is unusual. Consider as unusual any result that differs from the mean by more than 2 standard deviations. That is, unusual values are either less than - 2 or greater than + 2.

2)According to the National Center for Education Statistics, 43% of the college students work full time. A survey of 900 randomly selected college students is to be conducted. For such groups of 900, would it be unusual to get 735 college students who work fulltime?

Find the indicated probability. Round your answer to four decimals.

3)The Monthly salaries of teachers at Kingston college are normally distributed with a mean of $2000 and a standard deviation of $245. What is the probability that a randomly selected teacher earns at least $2400 a month?

4)The scores in a large Algebra class are normally distributed with a mean of 65 and a standard deviation of 11. If a random sample of 25 students is selected, find the probability that the sample mean will be between 63 and 70.

Use the given degree of confidence and sample data to construct a confidence interval for the population mean . Assume that the population has a normal distribution. Round your answer to 2 decimals.

5)The following data is the price of a certain food product in 10 randomly selected grocery stores.

7.50 8.20 7.00 7.30 7.20

8.10 8.00 7.80 7.40 8.50

Construct a 90% confidence interval estimate of the mean price of all grocery stores selling this food product.

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Round your answer to 2 decimals.

6)Of 150 adults selected randomly from one town, 30 of them smoke. Construct a 99% confidence interval for the true percentage of all adults in the town that smoke.

Use the traditional method to test the given hypothesis. Identify the null hypothesis, alternative hypothesis, test statistic, conclusion about the null hypothesis, and final conclusion that addresses the original claim.

7)Use a significance level of 0.05 to test the claim that less than 54% of the people following a particular diet will experience increased energy. Of 100 randomly selected subjects who followed the diet, 60 noticed an increase in their energy level.

I need help on this and there is not missing data

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