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Please take a picture of a paper or scan a paper (any paper, can be a blank one)  Then save it in your computer and upload that here. Don’t upload an existing file. I want to check whether Honorlock let you save a file in your computer and let you upload that.

Suppose that you wanted the total width of the two-sided confidence interval on mean temperature to be 1.5 degrees Celsius at 99% confidence. σ = 0.5. What sample size should be used? Round up the answer to an integer.

The 2004 presidential election exit polls from the critical state of Ohio provided the following results. The exit polls had 2020 respondents, 768 of whom were college graduates. Of the college graduates, 412 voted for George Bush. Calculate a 85% lower confidence interval for the proportion of college graduates in Ohio who voted for George Bush. Round your answer to 4 decimal places.   lower [A], upper [B]

In a multiply redundant system the lifetime of individual elements can be modeled with a parabolic distribution. The cdf of the lifetime in years of a circuit element is modeled by the equation F(x)= −5.83×3+6.12×2   0 < x < 0.7 years. Find the probability that the circuit elements will survive for at most 0.60 years? Round your answer to 4 decimal places.     

During a recent drought, a water utility in a certain town sampled 100 residential water bills and found that 73 of the residences had reduced their water consumption over that of the previous year. With what degree of confidence (should be percentage) one can assert that the width of CI is to be at most 0.11.

If Φ(z) = 0.9925, what is the value of z. Round your answer to 2 decimal places. ________                   For example, you answer can be 0.56 or -1.12            

A signal in a communication channel is detected when the voltage is less than 1.5 volts. Assume that the voltage is normally distributed with a mean of 3.0. What is the standard deviation of voltage such that the probability of a false signal is 0.06? Round your answer to 4 decimal places

A study was conducted in which all meals were provided for 15 lean boys for three days followed by one stress test. The average systolic blood pressure (SBP) during the test was 115.5 with a standard deviation of 9.7. Construct a 99% confidence interval for mean SBP.        For example your answer should be like 100 < p < 150

Upload your File from Question #15 to #20. If you have only one file then upload it here and ignore #22 and #23 If you are unable to upload your file, email me immediately after submitting your test. I will grade it only if I receive your email within 5 minutes after the test ends.

Find P(x = 75 , y = 50) using the joint Probability distribution table given below