Get a sample of 40 students from college at 0.05 level of significance test the claim less than 25% of students drive bl...
Get a sample of 40 students from college at 0.05 level of significance test the claim less than 25% of students drive black cars. Show calculation p value test statistic critical value
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Get a sample of 40 students from college at 0.05 level of significance test the claim less than 25% of students drive bl...
a The students at college BYZ claim that the proportion of their student body that live...
a The students at college BYZ claim that the proportion of their student body that live at home with a parent is lower than the proportion of the student body at college GWF that ive at home with a parent. In a random sample of 325 BYZ students there are 175 that live at home with a parent. In a random sample of 400 GWF students there are 222 that live at home with a parent. Test this claim using...
9. Use a significance level of a = 0.05 to test the claim that p =...
9. Use a significance level of a = 0.05 to test the claim that p = 32.6. The sample consists of 15 scores for which x = 40.8 and s = 7.9. a) State the hypotheses and label the claim. b) State the significance level (a). c) Is the test left-tailed, right-tailed, or two-tailed (circle one)? d) What is the critical value(s)? e) What are the P-value and test-statistic? f) State the conclusion.
1. Perform the indicated goodness-of-fit test. Using the data below and a 0.05 significance level, test the claim that...
1. Perform the indicated goodness-of-fit
test.
Using the data below and a 0.05 significance level, test the claim
that the responses occur with percentages of 15%, 20%, 25%, 25%,
and 15% respectively.
a. test statistic
b. critical value
2.Perform the indicated goodness-of-fit
test.
In studying the responses to a multiple-choice test question, the
following sample data were obtained. At the 0.05 significance
level, test the claim that the responses occur with the same
frequency.
a. test statistic
b. critical value
You wish to test the following claim (Ha) at a significance level of α=0.05. Ho:μ=62.6 Ha:μ<62.6...
You wish to test the following claim (Ha) at a significance level of α=0.05. Ho:μ=62.6 Ha:μ<62.6 You believe the population is normally distributed and you know the standard deviation is σ=10. You obtain a sample mean of M=59.5 for a sample of size n=33. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic =...
You wish to test the following claim a significance level of α = 0.05 . H...
You wish to test the following claim a significance level of α = 0.05 . H o : p = 0.5 H a : p > 0.5 You obtain a sample of size n = 461 in which there are 257 successful observations. What is the test statistic for this sample? test statistic = Round to 3 decimal places. What is the p-value for this sample? P-value = Use Technology Round to 4 decimal places. The p-value is... less than...
A 0.05 significance level is used for a hypothesis test of the claim that when parents...
A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is less than 0.5. Assume that sample data consists of 78 girls in 169 births, so the sample statistic of 6/13 results in a z score that is 1 standard deviation below 0. Complete parts (a) through (h) below. a. Identify the null hypothesis and the alternative hypothesis: b. What is the...
You wish to test the following claim (H a) at a significance level of α = 0.05.
You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. Ho:μ1=μ2Ho:μ1=μ2 Ha:μ1<μ2Ha:μ1<μ2You believe both populations are normally distributed, but you do not know the standard deviations for either. You should use a non-pooled test. You obtain a sample of size n1=16n1=16 with a mean of M1=50.7M1=50.7 and a standard deviation of SD1=7.4SD1=7.4 from the first population. You obtain a sample of size n2=12n2=12 with a mean of M2=53.7M2=53.7 and a standard deviation of SD2=18.2SD2=18.2 from the second population.What is the test statistic for this sample? (Report answer accurate to three decimal...
#2 please Problem (12 points) Test at 0.05 significance level the claim in a college catalog...
#2 please
Problem (12 points) Test at 0.05 significance level the claim in a college catalog that the mean price of a textbook at the college bookstore is less than 575. Assume that the prices of textbooks are normally distributed From a random sample of 16 textbooks, a mean of $70.41 with a standard deviation of $19.70, were obtained Problem #2 (12 points) A sample of 54 bears from Yellowstone National Park produces a mean weight of 182.91b. Assuming that...
#9 A 0.05 significance level is used for a hypothesis test of the claim that when...
#9 A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender? selection, the proportion of baby girls is less than 0.5. Assume that sample data consists of 45 girls in 100 ?births, so the sample statistic of 9/20results in a z score that is 1 standard deviation below 0. Complete parts? (a) through? (f) below. A) state null and alternative hypothesis B) value of a (alpha) C) What...
A 0.05 significance level is used for a hypothesis test of the claim that when parents...
A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is greater than 0.5. Assume that sample data consists of 78 girls in 144 births, so the sample statistic of StartFraction 13 Over 24 results in a z score that is 1 standard deviation above 0. Complete parts (a) through (h) below. a. Identify the null hypothesis and the alternative hypothesis. b....
a The students at college BYZ claim that the proportion of their student body that live at home with a parent is lower than the proportion of the student body at college GWF that ive at home with a parent. In a random sample of 325 BYZ students there are 175 that live at home with a parent. In a random sample of 400 GWF students there are 222 that live at home with a parent. Test this claim using...
9. Use a significance level of a = 0.05 to test the claim that p = 32.6. The sample consists of 15 scores for which x = 40.8 and s = 7.9. a) State the hypotheses and label the claim. b) State the significance level (a). c) Is the test left-tailed, right-tailed, or two-tailed (circle one)? d) What is the critical value(s)? e) What are the P-value and test-statistic? f) State the conclusion.
1. Perform the indicated goodness-of-fit
test.
Using the data below and a 0.05 significance level, test the claim
that the responses occur with percentages of 15%, 20%, 25%, 25%,
and 15% respectively.
a. test statistic
b. critical value
2.Perform the indicated goodness-of-fit
test.
In studying the responses to a multiple-choice test question, the
following sample data were obtained. At the 0.05 significance
level, test the claim that the responses occur with the same
frequency.
a. test statistic
b. critical value
#2 please
Problem (12 points) Test at 0.05 significance level the claim in a college catalog that the mean price of a textbook at the college bookstore is less than 575. Assume that the prices of textbooks are normally distributed From a random sample of 16 textbooks, a mean of $70.41 with a standard deviation of $19.70, were obtained Problem #2 (12 points) A sample of 54 bears from Yellowstone National Park produces a mean weight of 182.91b. Assuming that...
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