Question

Cholesterol level ~ Cholesterol level tends to increase with age in both women and men. A...

Cholesterol level ~ Cholesterol level tends to increase with age in both women and men. A medical researcher wants to use statistical inference to determine if average cholesterol level for women over 60 years is lower than men over 60 years. She randomly samples 110 women and 120 men who are over 60 years. The summary statistics are given in the table below in mg/dL. Give all answers to four decimals.

Population/Group

Gender

Mean Cholesterol Level

Standard Deviation

1

Women

196.9

39.8

2

Men

205.4

41.9

  1. What is the test statistic for this hypothesis test?
  2. What is the p-value for this hypothesis test?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
We want to compare fasting serum cholesterol levels of Filipino women to that of the other...
We want to compare fasting serum cholesterol levels of Filipino women to that of the other foreign women. Assume the cholesterol levels in 20- to 39-years old women in other foreign countries is normally distributed with mean µ = 190 mg/dl. Blood tests are performed on 100 female Filipinos in this age range rendered a sample mean cholesterol level of 181.52 mg/dl and standard deviation of 40 mg/dl. Conduct a test of hypothesis to determine whether Filipino women have lower...
The cholesterol level X in healthy individuals is age and sex-dependent. For males under age 21,...
The cholesterol level X in healthy individuals is age and sex-dependent. For males under age 21, the average reading of healthy individuals is 160mg/dl with a standard deviation of 10mg/dl. For males 21-29 years old, the mean cholesterol level is 200 mg/dl with a standard deviation of 30 mg/dl, and for males, 30 years and over, the mean cholesterol level reading is 220 mg/dl with a standard deviation of 30 mg/dl. Assuming the cholesterol level follows a normal distribution, find:...
The average cholesterol level in the general US population is 189 mg/dL. A researcher wants to...
The average cholesterol level in the general US population is 189 mg/dL. A researcher wants to see if the average cholesterol for men in the US is different from 189 mg/dL. She takes a sample of 81 American males and finds a sample mean of 194 mg/dL and a sample standard deviation of 10.4 What is the 90% confidence interval? What is the correct interpretation of the confidence interval from question 11? Are the assumptions met? Explain. Conduct a hypothesis...
A university investigation was conducted to determine whether women and men complete medical school in significantly...
A university investigation was conducted to determine whether women and men complete medical school in significantly different amounts of time, on the average. Two independent random samples were selected and the following summary information concerning times to completion of medical school computed. Perform the appropriate test of hypothesis, at level 0.05 to determine whether there is a significant difference in time to completion of medical school between women and men. Women Men Sample Size 90 100 Mean 8.4 years 8.5...
The distribution of blood cholesterol level in the population of all male patients tested in a...
The distribution of blood cholesterol level in the population of all male patients tested in a large hospital over a 10-year period is close to Normal with mean 224 milligrams per deciliter (mg/dL) and standard deviation σ = 42 mg/dL. You measure the blood cholesterol of 14 male patients 20--34 years of age. The mean level is x = 195 mg/dL. Is the mean μ for all young men aged 20--34 who have been patients in the hospital different than...
The recommended dietary allowances of iron for women under the age of 51 is 18 milligrams...
The recommended dietary allowances of iron for women under the age of 51 is 18 milligrams (mg) per day. A medical researcher studying women living in a certain region suspected that the women were getting less than the daily allowance of iron, on average. The researcher took a random sample of women under the age of 51 from the region and measured their daily iron intakes. The following hypotheses were tested at the significance level of α = 0.05 for...
A researcher is interested in determining whether women show greater affection than men. Affection is measured...
A researcher is interested in determining whether women show greater affection than men. Affection is measured as a ratio variable- number of hugs given per year. There were 10 men (n1 = 10) in the study and 10 women in the study (n2 = 10). The mean number of hugs for men was 3.5 and the mean number of hugs for women was 5.0. The SS1 for men was 16.5 and the SS2 for women was 28.5. Assume an alpha...
1. Several baseline studies are conducted on X = “cholesterol level (mg/dL)” in a certain population...
1. Several baseline studies are conducted on X = “cholesterol level (mg/dL)” in a certain population of individuals. From the given information described below for each of these studies, choose the LETTER of the most appropriate statistical test to be implemented, from the following list. Note: For each study, there is only one correct choice of test. However, a given statistical test can be the correct choice for more than one study. For example, choice A could be the correct...
Non-parametric test: Ice cream flavour preference by gender Men: Vanilla = 15; chocolate = 30 Women:...
Non-parametric test: Ice cream flavour preference by gender Men: Vanilla = 15; chocolate = 30 Women: vanilla = 10; chocolate = 5 Marginal row totals for vanilla = 25 Marginal row totals for chocolate = 35 Total= 60 The chi-square statistic is 5.143. The p-value is .0233. This result is significant at p < .05. What percent of men prefer chocolate over vanilla? What percent of women prefer chocolate over vanilla? Report the results of the statistical test in plain...
Question 2 (1 point) Suppose that the mean cholesterol level for males aged 50 is 241....
Question 2 (1 point) Suppose that the mean cholesterol level for males aged 50 is 241. An investigator wishes to examine whether cholesterol levels are significantly reduced by modifying diet only slightly. A sample of 12 patients agrees to participate in the study and follow the modified diet for 3 months. After 3 months, their cholesterol levels are measured and the summary statistics are produced on the n = 12 subjects. The mean cholesterol level in the sample is 235...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT