Do the data support the claim that low-fat diet and aerobic exercise are of value in producing amean reduction in blood cholesterol levels? Use a = 0.05a. Reject the Null Hypothesis. 5.465 > 1.753O b. Reject the Null Hypothesis. 5.465 > 1.761O c. None among the choicesO d. Fail to reject the Null Hypothesis. 5.465 > 1.753 Fifteen adult males between the ages of 35 and 50 participated in a study to evaluate the effect ofdiet and exercise on blood cholesterol levels. The total cholesterol was measured in each subjectinitially and then three months after participating in an aerobic exercise program and switching toa low-fat diet. The data are shown in the following table:Blood Cholesterol LevelSubjectBeforeAfter126522922402313258227429524052512386245241728723483142569260247102792391128324612240218132382191422522615247233Do the data support the claim that low-fat diet and aerobic exercise are of value in producing amean reduction in blood cholesterol levels? Use a = 0.0556

Given that Do the data support the claim that low-fat diet and aerobic exercise are of value in…

Answered: Do the data support the claim that…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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B. Determine the test statistic. _____ C. Determine the P-value. _____ D. State the final conclusion that addresses the original claim. (fail/ fail to reject) H0. There is (suffecient/ not suffecient) evidence to conclude that the original claim that the mean of the population of estimates is 60 seconds (is/ is not) correct. It (appears/ does not appear) that, as a group, the students are reasonably good at estimating
Find the z-scores for which 76% of the distribution's area lies between -z and z. Click to view page 1 of the table. Click to view page 2 of the table. The z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.)
Mean 1001 206 Levene's Test for Equality of Variances Sig. 15.578 <.001 .510 1.402 df Sig. (2-tailed) 1205 .014 261.832 035 -3.168 -3.168 Std. Error Difference 3. Do Whites spend a significantly different amount of time on the internet (WWWHR) than Blacks? Group Statistics Std. Error Race of respondent N Std. Deviation Mean Www.hours per week WHITE 13.29) (16.124) BLACK 16.46 20.120 Independent Samples Test t-test for Equality of Means Mean t Difference Www hours per week -2.455 Equal variances assumed -2.124 Equal variances not assumed 1.291 1.492 95% Confidence Interval of the Difference Lower Upper -5.701 -6.106 -.636 -.231
Test the claim that the mean time required for high school students to run 1 mile is greater than 7 minutes at the 0.05 level of significance. Here are the results of a random sample of 25 students. 7.3 7.7 9.2 8.8 7.6 7.2 6.6 6.4 8.0 7.5 7.5 7.7 8.1 8.6 6.8 6.9 7.5 7.3 7.8 8.2 10.4 11.6 7.2 7.7 7.0
The histogram displays hours of sleep per day for a random sample of 200 subjects estimate mean hours of sleep standard deviation hours of sleep and coefficient of variation
The height of women ages 20-29 is normally distributed, with a mean of 64.2 inches. Assume σ=2.8 inches. Are you more likely to randomly select 1 woman with a height less than 64.9 inches or are you more likely to select a sample of 20 women with a mean height less than 64.9 inches? Explain. LOADING... Click the icon to view page 1 of the standard normal table. LOADING... Click the icon to view page 2 of the standard normal table. What is the probability of randomly selecting 1 woman with a height less than 64.9 inches? enter your response here (Round to four decimal places as needed.)
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You are conducting a study to see if the mean doctor's salary (in thousands of dollars) is significantly more than 89. A random sample of 27 doctors' salary in thousands of dollars is shown below. Test the claim using a 1% level of significance. Give answer to at least 4 decimal places. Salary 102.57 87.59 99.36 96.89 93.53 85.75 100.46 85.57 90.56 85.12 83.49 99.11 99.53 85.62 89.55 96.33 90.95 84.41 91.69 96.33 85.25 87.77 78.22 91.21 96.93 85.36 85.35 What are the correct hypotheses? H0: Select an answer σ p̂ μ s² s x̄ p σ² ? ≥ > ≤ ≠ = < thousand dollarsH1: Select an answer x̄ p̂ μ p σ σ² s² s ? = > ≠ ≥ ≤ < thousand dollars Based on the hypotheses, find the following:Test Statistic = Critical-value = Shade the sampling distribution curve with the correct critical value(s) and shade the critical regions. The arrows can only be dragged to t-scores that are accurate to 1 place after the decimal point…
Assume the samples are random and independent, the populations are nomally distributed, and the population variances are equal. The table available below shows the prices (in dollars) for a sample of automobile batteries. The prices are classified according to battery type. At a = 0.10, is there enough evidence conclude that at least one mean battery price is different from the others? Complete parts (a) through (e) below. E Click the icon to view the battery cost data. (a) Let u1. P2. H3 represent the mean prices for the group size 35, 65, and 24/24F respectively. Identify the claim and state Ho and H. H Cost of batteries by type The claim is the V hypothesis. Group size 35 Group size 65 Group size 24/24F 101 111 121 124 D 146 173 182 278 124 140 141 89 (b) Find the critical value, Fo, and identify the rejection region. 90 79 84 The rejection region is F Fo, where Fo = (Round to two decimal places as needed.) (c) Find the test statistic F. Print Done F= (Round to two decimal places as…
A consumer advocacy group tests the mean vitamin C content of 50 different brands of bottled juices using, in each case, a t-test of significance in which the null hypothesis is the mean a mount of vitamin C that is on the nutrition facts label for that brand of juice. They find that two of the 50 juice brands have statistically significantly lower Vitamin C than claimed at the 0.05 level. Is this an important discovery? Explain.

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