1) Find the critical z-value(s) for a right tailed test with α = .02 . Assume a normal population. (Round to the nearest hundredth. If more than one value is found, enter the smallest critical value.)
2) Find the critical t-value(s) for a two-tailed test with n = 12, α = .05 . Assume a normal population. (Round to the nearest thousandth. If more than one value is found, enter the smallest critical value.)
3) Find χ2R for a right-tail test with n = 20, α = .01 . Assume a normal population. (Round to the nearest thousandth. If more than one value is found, enter the smallest critical value.)
4) Find χ2R for a two-tailed test with n = 25, α = .10 . (Round to the nearest thousandth. If more than one value is found, enter the smallest critical value.)
5) Find χ2L for a two-tailed test with n = 25, α = .10 . (Round to the nearest thousandth. If more than one value is found, enter the smallest critical value.)
6) Compute the test statistic for a claim about a population proportion given x = 12, n = 25, p = .35 . Assume a normal population. (Round to the nearest hundredth.)
7) Compute the test statistic for a claim about a population mean given x̄ = 143, μ = 150, σ = 5.6, n = 10 . Assume a normal population. (Round to the nearest hundredth.)
8) Compute the test statistic for a claim about a population standard deviation given n = 23, s = 1.4, σ = 1.5 . Assume a normal population. (Round to the nearest thousandth.)
9) Express each claim in symbolic form. At least half the students at this school carpool to campus.
Group of answer choices
p = .5
p < .5
p > .5
p ≠ .5
p ≥ .5
p ≤ .5
10) Express each claim in symbolic form. The average number of sick days taken annually by individual faculty members at this school is 4.
Group of answer choices
μ < 4
μ ≤ 4
μ ≥ 4
μ = 4
μ > 4
μ ≠ 4
11) Express each claim in symbolic form. The mean annual rainfall for this county is no more than 42 inches.
Group of answer choices
μ ≠ 42
μ > 42
μ ≥ 42
μ ≤ 42
μ < 42
μ = 42
12) Express each claim in symbolic form. More than 25% of the injuries caused by fireworks occur to hands.
Group of answer choices
p ≥ .25
p < .25
p > .25
p ≤ .25
p = .25
p ≠ .25
13) Express each claim in symbolic form. The standard deviation of the widths of ball bearings produced by my new machine is at most 0.01 inches.
Group of answer choices
σ = .01
σ ≠ .01
σ ≤ .01
σ < .01
σ ≥ .01
σ > .01
14) Express each claim in symbolic form. 89% of people using the Sleep Number mattress experience improved sleep quality.
Group of answer choices
p ≤ .89
p < .89
p ≥ .89
p ≠ .89
p = .89
p > .89
(13) σ ≤ .01
(14) p = .89
1) Find the critical z-value(s) for a right tailed test with α = .02 . Assume...
(a) Determine the critical value(s) for a right-tailed test of a population mean at the α=0.05 level of significance with 10 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the alphaαequals=0.01level of significance based on a sample size of n=20. (c) Determine the critical value(s) for a two-tailed test of a population mean at the α =0.10 level of significance based on a sample size of n=16.
36 Find the critical value(s) and rejection region(s) for the indicated t-test, level of significance α, and sample size n. Left-tailed test, α= 0.005, n= 9 Click the icon to view the t-distribution table. The critical value(s) is/are (Round to the nearest thousandth as needed. Use a comma to separate answers as needed.)
Find the critical value(s) for a right-tailed test for a population variance, sample size n = 12, and level of significance α-o025. The critical value(s) is(are) (Use a comma to separate answers as needed. Round to three decimal places as needed.)
7) A retired statistics professor has recorded final exam results for decades. The mean final exam score for the population of her students is 82.4 with a standard deviation of 6.5 . In the last year, her standard deviation seems to have changed. She bases this on a random sample of 25 students whose final exam scores had a mean of 80 with a standard deviation of 4.2 . Test the professor's claim that the current standard deviation is different...
Find the critical value for a right-tailed test with a = 0.025, degrees of freedom in the numerator= 12, and degrees of freedom in the denominator = 25. What is the critical value? (Round to the nearest hundredth as needed.)
Find the critical t-score (t) for the two tailed test with α-.01. a) t2.58 b) t3.01 c2.62 d) 2.65 e) none of these 14. 15.Therefore, the conclusion for this hypothesis test is: a) reject Ho at a-.05 and FTR Ho at a-o1 c) reject H° at α-.01 and FTR Ho at α-05 b) reject H, at α-.05 and α-.01 d) FIR h, at α-.05 and α-,01 e) none of these after in the percentage of cans showing discoloration 16. This...
Complete parts (a) through (c) below (a) Determine the critical value(s) for a right-tailed test of a population mean at the ?-0.05 level of significance with 10 degrees of freedom (b Determine the critical value(s) for a left-tailed test of a population mean at the ? 0 01 level of significance based on a sample size of n-15 c) Determine the critical value(s) for a two-tailed test of a population mean at the ?:0.01 level of significance based on a...
You are performing a left-tailed z-test If α = .05 , find the critical value, to two decimal places.
What is the critical z value for a one sided test when α = .01 and n = 25? What is the critical z value for a two sided test when α = .01 and n = 25? What is the critical t value for a one sided test when α = .01 and n = 25? What is the critical t value for a two sided test when α = .01 and n = 25?
1. You are performing a left-tailed matched-pairs test with 11 pairs of data. If α=.01α=.01, find the critical value, to two decimal places. 2.You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10. Ho:p1=p2Ho:p1=p2 Ha:p1>p2Ha:p1>p2 You obtain 72 successes in a sample of size n1=306n1=306 from the first population. You obtain 137 successes in a sample of size n2=633n2=633 from the second population. For this test, you should NOT use the continuity correction, and...