Tomatoes Use the data from exercise 9.36 . a. Using the four-step procedure with a two-sided alternative hypothesis, should you be able to reject the hypothesis that the population mean is 5 pounds using a significance level of 0.05 ? Why or why not? The confidence interval is reported here: I am 95 % confident the population mean is between 4.9 and 5.3 pounds. b. Now test the hypothesis that the population mean is not 5 pounds using the four-step procedure. Use a significance level of 0.05 and number your steps.
Tomatoes Use the data from exercise 9.36 . a. Using the four-step procedure with a two-sided alternative hypothesis, should you be able to reject the hypothesis that the population mean is 5 pounds using a significance level of 0.05 ? Why or why not? The confidence interval is reported here: I am 95 % confident the population mean is between 4.9 and 5.3 pounds. b. Now test the hypothesis that the population mean is not 5 pounds using the four-step procedure. Use a significance level of 0.05 and number your steps.
Solution Summary: The author explains whether or not the hypothesis that the population mean is 5 pounds can be rejected at 0.05 significance level.
a. Using the four-step procedure with a two-sided alternative hypothesis, should you be able to reject the hypothesis that the population mean is 5 pounds using a significance level of
0.05
? Why or why not? The confidence interval is reported here: I am
95
%
confident the population mean is between
4.9
and
5.3
pounds.
b. Now test the hypothesis that the population mean is not 5 pounds using the four-step procedure. Use a significance level of
0.05
and number your steps.
Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.
Throughout, A, B, (An, n≥ 1), and (Bn, n≥ 1) are subsets of 2.
1. Show that
AAB (ANB) U (BA) = (AUB) (AB),
Α' Δ Β = Α Δ Β,
{A₁ U A2} A {B₁ U B2) C (A1 A B₁}U{A2 A B2).
16. Show that, if X and Y are independent random variables, such that E|X|< ∞,
and B is an arbitrary Borel set, then
EXI{Y B} = EX P(YE B).
Proposition 1.1 Suppose that X1, X2,... are random variables. The following
quantities are random variables:
(a) max{X1, X2) and min(X1, X2);
(b) sup, Xn and inf, Xn;
(c) lim sup∞ X
and lim inf∞ Xn-
(d) If Xn(w) converges for (almost) every w as n→ ∞, then lim-
random variable.
→ Xn is a
Chapter 9 Solutions
Pearson eText Introductory Statistics: Exploring the World Through Data -- Instant Access (Pearson+)
Elementary Statistics ( 3rd International Edition ) Isbn:9781260092561
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