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
