1.) To the left of z=-0.175 please give answer 4 decimal
places
2.) Between z=-0.96 and z=-0.36
3.) To the left z=2.22
4.) To the left of z=-2.15 and to the right of z =1.62
5.) P (z>0.82) please answer 4 place decimal
6.) P(-0.20< z < 1.88)
7. Suppose P(Z > z) = 0.9656. What is the value of z? Round
your answer to 2 decimal places.
8. Let X be the number of shoppers in a supermarket line in an
hour. Assume each person is independent. What type of probability
distribution does X follow?
A general discrete distribution
A binomial distribution
A Poisson distribution
An exponential distribution
Find the following probabilities. (Round your answers to four
decimal places.)
(a) p(0 < z <
1.44)
(b) p(1.03 < z <
1.69)
(c) p(−0.87 < z <
1.72)
(d) p(z < −2.07)
(e) p(−2.32 < z <
−1.17)
(f) p(z < 1.52)
Consider the following
table:
SS
DF
MS
F
Among Treatments
1916.25
Error
?
12
263.24
Total
19
Step 1 of 8:
Calculate the sum of
squares of experimental error. Please round your answer to two
decimal places.
Step 2 of 8:
Calculate the degrees
of freedom among treatments.
Step 3 of 8:
Calculate the mean
square among treatments. Please round your answer to two decimal
places.
Step 4 of 8:
Calculate the F-value.
Please round your answer to two decimal...
4)
• z-value should be expressed to three decimal places: e.g.,
z=1.645.
• Before you start each question, you should determine if you
are dealing with the population mean or proportion since what you
do depends on the type of parameter at hand.
• When handling proportion problems, write/use/plug proportions
as decimals (e.g., not 54%, but .54).
• In the beginning, state clearly if you do a 1-tailed or
2-tailed test. State clearly your H0 and H1 using correct Greek...
A manager for an insurance company believes that customers have
the following preferences for life insurance products: 50% prefer
Whole Life, 30% prefer Universal Life, and 20% prefer Life
Annuities. The results of a survey of 351 customers were tabulated.
Is it possible to refute the sales manager's claimed proportions of
customers who prefer each product using the data?ProductNumberWhole39Universal86Annuities226Copy DataStep 8 of 10 : Find the critical value of the test at the 0.025 level of
significance. Round your answer to...
Assume that z is the test statistic. (Give your answers correct
to two decimal places.)
(a) Calculate the value of z for Ho: μ = 10, σ = 2.8, n = 36, x
= 11.4.
_________
(b) Calculate the value of z for Ho: μ = 120, σ = 26, n = 26, x
= 125.9.
_________
(c) Calculate the value of z for Ho: μ = 18.2, σ = 4.4, n = 140,
x = 18.88.
__________
(d) Calculate...