Math 1401 _ EXAM 4 in email, Due is 7/29

Fine the margin of error for the given value of c, σ, and n.

C= 0.95, σ = 3.6, n= 64

Construct the Confidence Interval for the population mean µ;

C= 0.98, sample mean is 16.5, σ = 3.1, and n= 75

(Round to one decimal place as needed)

You are given the sample mean and the population standard deviation. Use the information to construct the 90% and 95% confidence interval for the population mean.

The random sample of 55 house theater systems has a mean price of $146.00

Assume the population standard deviation is $18.30.

(Round to two decimal places)

Construct a 90% confidence interval

Construct a 95% confidence interval

Find the critical value tc for the confidence level c= 0.95and sample size n= 21.

Find the margin of error for the given value of c, s and n. c= 0.99, s=4, n=7

(Round to one decimal place)

Find the critical value tc corresponding to a 95% confidence level, given that the sample has size n= 15.

Find the P-value for the indicated hypothesis test with the given standard test statistic, z.

Two tailed test with test statistic z= – 1.74 and α=0.03.

Use the given statement to represent a claim. Write its complement

and state which is H0 and which is Ha

α ≠ 4

Use the given statement to represent a claim. Write its complement and state which is

H0 and which is Ha

p > 0.66

Find a P-value for a left-tailed hypothesis test with a test statistic of z = – 1.25

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