Please show your work thanks 1 Consider the following hypoth

Please show your work. thanks

1.

Consider the following hypothesis test.

A sample of 64 provides a sample mean of 13 and a sample standard deviation of 4.

Determine the standard error of the mean (to 1 decimal).
Compute the value of the test statistic.

2.

consider the following hypothesis test.

You are given the following information obtained from a random sample of six observations. Assume the population has a normal distribution.

38  40  42  32  46  42

Compute the mean of the sample
Determine the standard deviation of the sample (to 2 decimals).

Determine the standard error of the mean (to 2 decimals).

Compute the value of the test statistic (to 3 decimals).

3.

You are given the following information obtained from a random sample of 5 observations. Assume the population has a normal distribution.

You want to determine whether or not the mean of the population from which this sample was taken is significantly less than 21.

Compute the standard error of the mean (to 4 decimals).

Determine the test statistic (to 3 decimals).

4.

A random sample of 50 visitors at Universal Studio in Orlando was taken. On average each person spent $ 10 inside the park. The sample standard deviation was $ 3. The following is the printout from Excel.

Compute the margin of error of the mean (2 decimals do not round).

In terms of statistical analysis we are using the _______ table.

Solution

1) t statisttic = -2.0

Std error = 4/8 =0.5

df =63

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2)

Std error = 1.9318

t statistic = 1.03507

df =5

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3) Post them as new questions with fresh points.