Question

Asked Nov 7, 2019

In photo

2 Ratings

Step 1

For sample size 100,

The 95% confidence interval is 0.8-4.2.

The width of the confidence interval is 4.2-0.8=3.4.

For sample size 500,

The 95% confidence interval is 0.9-3.3.

The width of the confidence interval is 3.3-0.9=2.4.

For sample size 1000,

The 95% confidence interval is 2.6-4.5.

The width of the confidence interval is 4.5-2.6=1.9.

For s...

Tagged in

Q: I need help with letter (a)

A: Given Probability of major accident 0.005Probability of minor accident = 0.08The insurance premium ...

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those sc...

A: From the given data, mean (μ) =100 and standard deviation (σ) =15And x=96 from the given graph

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120 a...

A: Given dataMean = 120Standard Deviation = 23Calculating the z-value corresponding to 30th percentile ...

Q: From a sample with n=32, the mean number of televisions per household is 4 with a standard deviation...

A: Chebyshev’s rule can be used for the large set data. It says that at least 1-1/k2 percentage of the ...

Q: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 50% ...

A: Given datan= 10p= 0.5probability that exactly two-fifths of the buyers would prefer green is given b...

Q: Find the area under the standard normal distribution to the left of z=0

A: It is givne that the z-score is 0.

Q: Please show TI 84 steps. Part d

A: a)t>2.718, df = 11=0.01( From Excel =T.DIST.RT(2.718,11))type error = significance level = 0.01re...

Q: make up 2 data sets, each with 5 values, that have the same mean and median, but different standard ...

A: Let the two datasets be x and y

Q: Height and weight are two measurements used to track a child’s development. The World Health Organiz...

A: It is given that mean and standard deviation are 10.2 and 0.8, respectively.